Gravitation MCQs

What is Gravitation?

Gravitation is a fundamental chapter in Physics that explores the force of attraction between objects with mass. This unit introduces the universal law of gravitation, formulated by Sir Isaac Newton, which explains how all objects in the universe are drawn to one another by gravity. Students learn about the effects of gravitational force on planetary motion, tides, and the weight of objects on Earth. The chapter also covers key concepts like gravitational field strength, acceleration due to gravity, and the significance of gravity in maintaining the structure of the universe.

Key Topics in Gravitation:

Newton’s Law of Universal Gravitation: Understanding the mathematical relationship between gravitational force, mass, and distance.
Gravitational Field Strength: Exploring the concept of gravitational field and how it varies with distance from a mass.
Acceleration Due to Gravity: Learning about the constant acceleration that objects experience due to Earth’s gravity.
Planetary Motion: Examining how gravitational forces govern the orbits of planets and moons.
Tides: Understanding how the gravitational pull of the moon and sun influences ocean tides on Earth.
Weight and Mass: Distinguishing between mass and weight, and understanding how gravity affects them.

Benefits of Studying Gravitation:

Understanding Universal Forces: Provides insights into the fundamental force that governs the motion of celestial bodies and everyday objects.
Critical Thinking: Enhances analytical skills through the application of gravitational laws to various physical scenarios.
Preparation for Advanced Studies: Lays the foundation for further exploration of topics in astronomy, cosmology, and general relativity.

This chapter is crucial for students to understand the role of gravity in shaping the universe and its influence on the motion of objects. Mastering the concepts of gravitation is essential for success in both academic studies and practical applications in Physics and related fields.

The force of gravity between two objects is:
- A) Directly proportional to the product of their masses
- B) Inversely proportional to the sum of their masses
- C) Directly proportional to the sum of their masses
- D) Inversely proportional to the square of the distance between them
- Answer: A) Directly proportional to the product of their masses
The universal law of gravitation was formulated by:
- A) Albert Einstein
- B) Isaac Newton
- C) Galileo Galilei
- D) Johannes Kepler
- Answer: B) Isaac Newton
The acceleration due to gravity on the surface of the Earth is approximately:
- A) 9.8 m/s²
- B) 10 m/s²
- C) 8.9 m/s²
- D) 11.2 m/s²
- Answer: A) 9.8 m/s²
The gravitational force between two objects is:
- A) Always attractive
- B) Always repulsive
- C) Can be either attractive or repulsive
- D) Zero at all times
- Answer: A) Always attractive
The gravitational constant (G) has the value of:
- A) 6.67 × 10⁻¹¹ N m²/kg²
- B) 6.67 × 10⁻¹² N m²/kg²
- C) 6.67 × 10⁻¹⁰ N m²/kg²
- D) 6.67 × 10⁻¹³ N m²/kg²
- Answer: A) 6.67 × 10⁻¹¹ N m²/kg²
The force of gravity between two bodies depends on:
- A) Their masses and the distance between them
- B) Their volumes and the distance between them
- C) Their masses and their temperatures
- D) Their charges and the distance between them
- Answer: A) Their masses and the distance between them
If the mass of one object is doubled, the gravitational force between two objects will:
- A) Double
- B) Quadruple
- C) Halve
- D) Remain the same
- Answer: A) Double
The gravitational force between two objects is inversely proportional to:
- A) The product of their masses
- B) The square of the distance between them
- C) The sum of their masses
- D) The product of their volumes
- Answer: B) The square of the distance between them
The value of acceleration due to gravity (g) decreases with:
- A) Increasing altitude
- B) Decreasing altitude
- C) Increasing mass of the Earth
- D) Decreasing mass of the Earth
- Answer: A) Increasing altitude
The weight of an object on the Moon is:
- A) Greater than on Earth
- B) Less than on Earth
- C) The same as on Earth
- D) Zero
- Answer: B) Less than on Earth
Gravitational potential energy is:
- A) Directly proportional to the height of the object above the ground
- B) Inversely proportional to the height of the object above the ground
- C) Independent of the height of the object above the ground
- D) Equal to the mass of the object multiplied by the gravitational force
- Answer: A) Directly proportional to the height of the object above the ground
The gravitational force between two objects is given by:
- A) F = G(m₁m₂)/d²
- B) F = G(m₁m₂)d²
- C) F = G(d²/m₁m₂)
- D) F = (m₁m₂)/Gd²
- Answer: A) F = G(m₁m₂)/d²
The gravitational force is maximum when:
- A) The distance between the objects is minimum
- B) The distance between the objects is maximum
- C) The masses of the objects are minimum
- D) The masses of the objects are maximum
- Answer: A) The distance between the objects is minimum
The gravitational force between two objects of equal mass is:
- A) Zero
- B) The same as if they had different masses
- C) Greater than if they had different masses
- D) Independent of their masses
- Answer: B) The same as if they had different masses
The gravitational force between two objects of different masses is:
- A) Directly proportional to the sum of their masses
- B) Directly proportional to the difference in their masses
- C) Directly proportional to the product of their masses
- D) Inversely proportional to the product of their masses
- Answer: C) Directly proportional to the product of their masses
If the distance between two objects is halved, the gravitational force between them will:
- A) Double
- B) Quadruple
- C) Halve
- D) Remain the same
- Answer: B) Quadruple
The acceleration due to gravity on the surface of a planet with twice the radius of Earth and the same mass as Earth will be:
- A) Half that on Earth
- B) Twice that on Earth
- C) One-fourth that on Earth
- D) Four times that on Earth
- Answer: C) One-fourth that on Earth
The value of ‘g’ at the Earth’s equator is slightly less than at the poles due to:
- A) Earth’s rotation
- B) Earth’s shape
- C) Atmospheric pressure
- D) Altitude
- Answer: A) Earth’s rotation
The force of gravity between two objects is always:
- A) Perpendicular to the line joining the objects
- B) Parallel to the line joining the objects
- C) Along the line joining the objects
- D) None of the above
- Answer: C) Along the line joining the objects
The escape velocity of an object from the surface of the Earth depends on:
- A) The mass of the object
- B) The radius of the Earth
- C) The density of the object
- D) The atmospheric conditions
- Answer: B) The radius of the Earth
The force of gravity acts:
- A) Only on objects with mass
- B) Only on objects with charge
- C) On all objects regardless of their properties
- D) Only in the presence of other forces
- Answer: A) Only on objects with mass
The concept of gravitational potential energy is based on:
- A) The work done to move an object from infinity to a point in a gravitational field
- B) The work done to lift an object to a certain height
- C) The change in kinetic energy of an object
- D) The energy of an object in motion
- Answer: A) The work done to move an object from infinity to a point in a gravitational field
The gravitational force between two objects can be increased by:
- A) Decreasing the mass of one of the objects
- B) Increasing the distance between the objects
- C) Increasing the mass of one or both objects
- D) Decreasing the distance between the objects
- Answer: C) Increasing the mass of one or both objects
The value of gravitational acceleration (g) varies with:
- A) The mass of the object
- B) The distance from the center of the Earth
- C) The temperature of the object
- D) The color of the object
- Answer: B) The distance from the center of the Earth
The force of gravity between two objects is independent of:
- A) The masses of the objects
- B) The distance between the objects
- C) The temperature of the objects
- D) The gravitational constant
- Answer: C) The temperature of the objects
The weight of an object is the:
- A) Force of gravity acting on it
- B) Mass of the object
- C) Gravitational potential energy of the object
- D) Product of its mass and velocity
- Answer: A) Force of gravity acting on it
The force of gravity between two objects is:
- A) Directly proportional to the square of the distance between them
- B) Inversely proportional to the product of their masses
- C) Directly proportional to the product of their masses
- D) Inversely proportional to the distance between them
- Answer: C) Directly proportional to the product of their masses
The gravitational force on an object at the Earth’s surface is:
- A) Zero
- B) Equal to the object’s weight
- C) Equal to the object’s mass
- D) A function of the object’s velocity
- Answer: B) Equal to the object’s weight
The gravitational potential energy of an object is highest:
- A) At the lowest point of its path
- B) At the highest point of its path
- C) At the midpoint of its path
- D) When it is in motion
- Answer: B) At the highest point of its path
The value of gravitational acceleration (g) is slightly higher at:
- A) The poles
- B) The equator
- C) High altitudes
- D) Low altitudes
- Answer: A) The poles
The gravitational force between two bodies is 10 N. If the distance between them is doubled, the new force will be:
- A) 5 N
- B) 20 N
- C) 10 N
- D) 2.5 N
- Answer: D) 2.5 N
The acceleration due to gravity (g) on the Moon is approximately:
- A) 1/6th that on Earth
- B) 6 times that on Earth
- C) 1/10th that on Earth
- D) 1/3rd that on Earth
- Answer: A) 1/6th that on Earth
The gravitational force between two objects with masses of 10 kg each, separated by a distance of 2 meters, is:
- A) 1.67 × 10⁻¹¹ N
- B) 6.67 × 10⁻¹¹ N
- C) 6.67 × 10⁻¹² N
- D) 1.67 × 10⁻¹² N
- Answer: B) 6.67 × 10⁻¹¹ N
The escape velocity from the surface of the Earth is approximately:
- A) 11.2 km/s
- B) 9.8 km/s
- C) 8.9 km/s
- D) 15.0 km/s
- Answer: A) 11.2 km/s
The weight of an object on the surface of the Earth is:
- A) Mass times acceleration due to gravity
- B) Mass times velocity
- C) Gravitational potential energy
- D) Mass divided by acceleration due to gravity
- Answer: A) Mass times acceleration due to gravity
The gravitational field strength at a point is:
- A) The force experienced by a unit mass placed at that point
- B) The product of the mass and distance
- C) The potential energy of a unit mass
- D) The distance from the center of the Earth
- Answer: A) The force experienced by a unit mass placed at that point
The gravitational potential energy of an object near the Earth’s surface is given by:
- A) mgh
- B) mg
- C) mgh²
- D) m²gh
- Answer: A) mgh
The value of gravitational acceleration (g) is affected by:
- A) The distance from the Earth’s center
- B) The mass of the object
- C) The temperature of the object
- D) The object’s color
- Answer: A) The distance from the Earth’s center
The principle of conservation of energy in a gravitational field states that:
- A) Total mechanical energy is conserved
- B) Gravitational potential energy is always zero
- C) Kinetic energy is always zero
- D) Gravitational potential energy and kinetic energy are always equal
- Answer: A) Total mechanical energy is conserved
The gravitational force between two bodies of mass 2 kg and 3 kg, separated by a distance of 5 meters, is:
- A) 8.01 × 10⁻¹² N
- B) 4.02 × 10⁻¹¹ N
- C) 6.67 × 10⁻¹¹ N
- D) 2.67 × 10⁻¹¹ N
- Answer: B) 4.02 × 10⁻¹¹ N
The acceleration due to gravity (g) at the surface of a planet is:
- A) Independent of the planet’s mass
- B) Directly proportional to the planet’s radius
- C) Inversely proportional to the planet’s radius
- D) Directly proportional to the square of the planet’s radius
- Answer: C) Inversely proportional to the planet’s radius
The gravitational field strength at a distance of 10 meters from the center of the Earth is:
- A) Less than at the surface
- B) Greater than at the surface
- C) Equal to at the surface
- D) Zero
- Answer: A) Less than at the surface
The gravitational potential energy of an object is:
- A) Positive and decreases with height
- B) Negative and increases with height
- C) Positive and increases with height
- D) Zero and constant at all heights
- Answer: B) Negative and increases with height
The gravitational force between two objects is:
- A) Zero if the distance between them is zero
- B) Maximum if the distance between them is zero
- C) Zero if the masses of the objects are zero
- D) Maximum if the masses of the objects are zero
- Answer: C) Zero if the masses of the objects are zero
The gravitational force on a satellite in orbit depends on:
- A) The mass of the satellite and the distance from the Earth’s center
- B) The speed of the satellite and its distance from the Earth’s surface
- C) The temperature of the satellite and the altitude
- D) The color of the satellite and its distance from the Earth’s surface
- Answer: A) The mass of the satellite and the distance from the Earth’s center
The force of gravity between two objects is proportional to:
- A) The mass of one object squared
- B) The product of the masses of the objects
- C) The square of the distance between the objects
- D) The sum of the masses of the objects
- Answer: B) The product of the masses of the objects
The gravitational force between two objects is:
- A) Directly proportional to the sum of their masses
- B) Inversely proportional to the square of the distance between them
- C) Directly proportional to the square of the distance between them
- D) Inversely proportional to the sum of their masses
- Answer: B) Inversely proportional to the square of the distance between them
The escape velocity of an object depends on:
- A) The mass of the object and the height of the object
- B) The radius of the planet and the mass of the planet
- C) The velocity of the object and the height of the object
- D) The distance from the planet’s surface and the mass of the object
- Answer: B) The radius of the planet and the mass of the planet
The acceleration due to gravity (g) on the surface of the Earth is approximately:
- A) 10 m/s²
- B) 9.8 m/s²
- C) 8.9 m/s²
- D) 11 m/s²
- Answer: B) 9.8 m/s²
If the radius of the Earth were to increase while keeping the mass the same, the acceleration due to gravity would:
- A) Increase
- B) Decrease
- C) Remain the same
- D) Become zero
- Answer: B) Decrease
The gravitational force between two objects is the same as:
- A) The force that one object exerts on the other
- B) The difference in their masses
- C) The force of friction between them
- D) The centripetal force acting on the objects
- Answer: A) The force that one object exerts on the other
The gravitational potential energy of an object increases as it:
- A) Moves to a higher position
- B) Moves to a lower position
- C) Moves at a constant height
- D) Decreases in speed
- Answer: A) Moves to a higher position
The gravitational force is strongest:
- A) At the Earth’s surface
- B) At the Earth’s center
- C) At high altitudes
- D) In the vacuum of space
- Answer: A) At the Earth’s surface
The weight of an object in a free-falling elevator is:
- A) Equal to the object’s mass
- B) Zero
- C) Equal to the gravitational force
- D) Greater than its mass
- Answer: B) Zero
The gravitational field strength at the Earth’s surface is approximately:
- A) 9.8 N/kg
- B) 10 N/kg
- C) 8.9 N/kg
- D) 11 N/kg
- Answer: A) 9.8 N/kg
The gravitational force between two bodies with masses of 1 kg each, separated by a distance of 1 meter, is:
- A) 6.67 × 10⁻¹¹ N
- B) 6.67 × 10⁻¹² N
- C) 6.67 × 10⁻¹³ N
- D) 6.67 × 10⁻¹⁰ N
- Answer: A) 6.67 × 10⁻¹¹ N
The gravitational force is equal to the:
- A) Weight of an object
- B) Mass of an object
- C) Kinetic energy of an object
- D) Potential energy of an object
- Answer: A) Weight of an object
The gravitational force between two objects is:
- A) Directly proportional to the distance between them
- B) Inversely proportional to the product of their masses
- C) Directly proportional to the product of their masses
- D) Inversely proportional to the distance between them
- Answer: C) Directly proportional to the product of their masses
The gravitational potential energy of an object on the Earth’s surface is:
- A) Dependent on its mass and height
- B) Dependent only on its mass
- C) Independent of its height
- D) Dependent only on its height
- Answer: A) Dependent on its mass and height
The value of ‘g’ on the Moon compared to the Earth is:
- A) 1/6th
- B) 6 times
- C) 1/3rd
- D) The same
- Answer: A) 1/6th
The acceleration due to gravity (g) on the surface of a planet is directly proportional to:
- A) The mass of the planet
- B) The radius of the planet
- C) The distance from the center of the planet
- D) The temperature of the planet
- Answer: A) The mass of the planet
The gravitational field strength at a height h above the Earth’s surface is:
- A) Decreased compared to at the surface
- B) Increased compared to at the surface
- C) The same as at the surface
- D) Zero
- Answer: A) Decreased compared to at the surface
The weight of an object is:
- A) The force exerted by gravity on the object
- B) The mass of the object
- C) The amount of space the object occupies
- D) The force exerted by the object on a surface
- Answer: A) The force exerted by gravity on the object
The escape velocity of an object from the Earth’s surface is affected by:
- A) The object’s mass and the Earth’s mass
- B) The object’s velocity and the Earth’s radius
- C) The Earth’s radius and the Earth’s mass
- D) The object’s velocity and the Earth’s temperature
- Answer: C) The Earth’s radius and the Earth’s mass
The gravitational force between two objects with masses of 2 kg and 3 kg and separated by a distance of 4 meters is:
- A) 6.67 × 10⁻¹¹ N
- B) 1.34 × 10⁻¹¹ N
- C) 5.00 × 10⁻¹¹ N
- D) 8.01 × 10⁻¹¹ N
- Answer: D) 8.01 × 10⁻¹¹ N
The gravitational potential energy of an object is:
- A) Equal to the work done to move it from a reference point
- B) Always zero
- C) Equal to its kinetic energy
- D) Independent of its position
- Answer: A) Equal to the work done to move it from a reference point
The gravitational force between two objects is:
- A) Constant at all distances
- B) Zero at large distances
- C) Maximum at large distances
- D) Inversely proportional to the distance between them
- Answer: D) Inversely proportional to the distance between them
The weight of an object on the Moon is:
- A) Six times less than on Earth
- B) Six times more than on Earth
- C) The same as on Earth
- D) Twice that on Earth
- Answer: A) Six times less than on Earth
The force of gravity between two objects of masses 5 kg and 10 kg, separated by 3 meters, is:
- A) 1.11 × 10⁻¹¹ N
- B) 2.22 × 10⁻¹¹ N
- C) 3.33 × 10⁻¹¹ N
- D) 5.56 × 10⁻¹¹ N
- Answer: B) 2.22 × 10⁻¹¹ N
The gravitational constant (G) is used to:
- A) Calculate gravitational force between two objects
- B) Determine the mass of an object
- C) Find the acceleration due to gravity
- D) Measure the distance between two objects
- Answer: A) Calculate gravitational force between two objects
The gravitational force on an object at a height above the Earth’s surface is:
- A) Equal to the weight of the object
- B) Less than the weight of the object
- C) Greater than the weight of the object
- D) Zero
- Answer: B) Less than the weight of the object
The gravitational force between two objects with masses 3 kg and 4 kg and separated by a distance of 5 meters is:
- A) 2.67 × 10⁻¹¹ N
- B) 6.67 × 10⁻¹¹ N
- C) 3.34 × 10⁻¹¹ N
- D) 1.33 × 10⁻¹¹ N
- Answer: C) 3.34 × 10⁻¹¹ N
The gravitational field strength at a distance of 2 times the Earth’s radius from the Earth’s center is:
- A) Half the value at the Earth’s surface
- B) Double the value at the Earth’s surface
- C) One-fourth the value at the Earth’s surface
- D) Four times the value at the Earth’s surface
- Answer: C) One-fourth the value at the Earth’s surface
The escape velocity of an object from the Earth’s surface depends on:
- A) The mass of the object
- B) The radius of the Earth
- C) The gravitational constant
- D) The object’s velocity
- Answer: B) The radius of the Earth
The gravitational force between two bodies of masses 1 kg and 2 kg separated by a distance of 3 meters is:
- A) 2.22 × 10⁻¹¹ N
- B) 6.67 × 10⁻¹² N
- C) 4.44 × 10⁻¹¹ N
- D) 1.11 × 10⁻¹¹ N
- Answer: D) 1.11 × 10⁻¹¹ N
The gravitational field strength at the Earth’s surface is:
- A) The same everywhere
- B) Greater at higher altitudes
- C) Less at higher altitudes
- D) Zero at the surface
- Answer: C) Less at higher altitudes
The gravitational force is affected by:
- A) The temperature of the objects
- B) The density of the objects
- C) The masses of the objects
- D) The color of the objects
- Answer: C) The masses of the objects
The gravitational potential energy of an object is:
- A) Directly proportional to its height above the reference point
- B) Inversely proportional to its height above the reference point
- C) Dependent on its temperature
- D) Independent of its height above the reference point
- Answer: A) Directly proportional to its height above the reference point
The force of gravity between two objects is:
- A) Directly proportional to the product of their masses and inversely proportional to the square of the distance between them
- B) Directly proportional to the distance between them
- C) Inversely proportional to the product of their masses
- D) Directly proportional to the sum of their masses
- Answer: A) Directly proportional to the product of their masses and inversely proportional to the square of the distance between them
The value of ‘g’ on the surface of a planet with twice the Earth’s radius and same mass would be:
- A) Half the value of ‘g’ on Earth
- B) Twice the value of ‘g’ on Earth
- C) Same as ‘g’ on Earth
- D) Four times the value of ‘g’ on Earth
- Answer: A) Half the value of ‘g’ on Earth
The gravitational potential energy of an object is a measure of:
- A) The work done to move it to that height
- B) Its speed
- C) Its kinetic energy
- D) Its weight
- Answer: A) The work done to move it to that height
The gravitational force between two objects of masses 2 kg and 5 kg separated by a distance of 2 meters is:
- A) 8.34 × 10⁻¹¹ N
- B) 1.67 × 10⁻¹¹ N
- C) 6.67 × 10⁻¹¹ N
- D) 3.34 × 10⁻¹¹ N
- Answer: B) 1.67 × 10⁻¹¹ N
The escape velocity of an object is:
- A) The minimum speed needed to escape the gravitational pull of a planet
- B) The speed needed to reach the maximum height
- C) The speed required to orbit the planet
- D) The speed needed to land on the planet
- Answer: A) The minimum speed needed to escape the gravitational pull of a planet
The gravitational force is greatest at:
- A) The surface of the Earth
- B) The center of the Earth
- C) High altitudes
- D) In space
- Answer: A) The surface of the Earth
The gravitational field strength at a point outside the Earth is:
- A) Decreased as the distance from the Earth’s center increases
- B) Increased as the distance from the Earth’s center increases
- C) Constant at all distances
- D) Zero
- Answer: A) Decreased as the distance from the Earth’s center increases
The gravitational constant (G) is:
- A) A universal constant
- B) Variable depending on the masses involved
- C) Dependent on the distance between the objects
- D) Zero in space
- Answer: A) A universal constant
The gravitational force on an object is directly proportional to:
- A) The mass of the object
- B) The distance from the center of the Earth
- C) The object’s volume
- D) The object’s temperature
- Answer: A) The mass of the object
The gravitational potential energy of an object increases when:
- A) The object is lifted higher
- B) The object is moved lower
- C) The object’s mass decreases
- D) The object’s temperature increases
- Answer: A) The object is lifted higher
The force of gravity between two objects is:
- A) Directly proportional to their masses
- B) Inversely proportional to their masses
- C) Constant regardless of their masses
- D) Zero if one of the objects has zero mass
- Answer: A) Directly proportional to their masses
The acceleration due to gravity on a planet with twice the Earth’s mass and half the Earth’s radius is:
- A) Twice that on Earth
- B) Four times that on Earth
- C) Half that on Earth
- D) One-fourth that on Earth
- Answer: B) Four times that on Earth
The gravitational field strength at a point on the surface of the Earth is:
- A) Equal to the gravitational force per unit mass at that point
- B) The same everywhere on Earth
- C) Dependent on the mass of the Earth only
- D) Zero at the Earth’s surface
- Answer: A) Equal to the gravitational force per unit mass at that point
The gravitational potential energy of an object is zero when:
- A) It is at the reference point of zero potential energy
- B) It is in motion
- C) It is at the Earth’s surface
- D) It is at the highest point of its path
- Answer: A) It is at the reference point of zero potential energy
The force of gravity between two objects of masses 6 kg and 8 kg separated by a distance of 4 meters is:
- A) 1.34 × 10⁻¹¹ N
- B) 2.68 × 10⁻¹¹ N
- C) 1.68 × 10⁻¹¹ N
- D) 5.34 × 10⁻¹¹ N
- Answer: A) 1.34 × 10⁻¹¹ N
The acceleration due to gravity at a height above the Earth’s surface is:
- A) Less than at the Earth’s surface
- B) Greater than at the Earth’s surface
- C) The same as at the Earth’s surface
- D) Zero
- Answer: A) Less than at the Earth’s surface
The gravitational field strength at a distance of 3 Earth radii from the Earth’s center is:
- A) One-ninth the value at the Earth’s surface
- B) One-third the value at the Earth’s surface
- C) Three times the value at the Earth’s surface
- D) Nine times the value at the Earth’s surface
- Answer: A) One-ninth the value at the Earth’s surface
The weight of an object in orbit is:
- A) Zero
- B) Equal to the object’s mass
- C) Equal to the object’s mass times the gravitational acceleration at that height
- D) The same as on the Earth’s surface
- Answer: A) Zero
The gravitational force between two objects depends on:
- A) The masses of the objects
- B) The distance between the objects
- C) The gravitational constant
- D) All of the above
- Answer: D) All of the above
The gravitational potential energy of an object is affected by:
- A) Its height above a reference point
- B) The object’s speed
- C) The object’s temperature
- D) The density of the object
- Answer: A) Its height above a reference point
The escape velocity of an object depends on:
- A) The mass of the object
- B) The gravitational field strength
- C) The radius of the Earth
- D) The temperature of the object
- Answer: B) The gravitational field strength
The gravitational force between two objects of masses 4 kg and 5 kg separated by a distance of 6 meters is:

– A) 3.34 × 10⁻¹¹ N

– B) 2.78 × 10⁻¹¹ N

– C) 6.67 × 10⁻¹¹ N

– D) 1.11 × 10⁻¹² N

– Answer: B) 2.78 × 10⁻¹¹ N