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Question 1:

What is the force responsible for keeping planets in orbit around the Sun?

A) Electrostatic force
B) Magnetic force
C) Gravitational force
D) Nuclear force

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Explanation: The correct answer is C) Gravitational force. The gravitational force between the Sun and planets is responsible for their circular motion in orbits. It acts as an attractive force, keeping the planets in their respective paths around the Sun.

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Question 2:

What determines the strength of the gravitational force between two objects?

A) Mass of the objects
B) Distance between the objects
C) Both mass and distance
D) Neither mass nor distance

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Explanation: The correct answer is C) Both mass and distance. The gravitational force between two objects is determined by both the mass of the objects and the distance between them. The force increases with increasing mass and decreases with increasing distance between the objects.

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Question 3:

What is the direction of the gravitational force between two objects?

A) Towards the center of the Earth
B) Towards the Sun
C) Towards the larger object
D) Away from the smaller object

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Explanation: The correct answer is C) Towards the larger object. The gravitational force between two objects is always attractive and acts in the direction towards the larger object. For example, the force between the Earth and an object on or near its surface is directed towards the center of the Earth.

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Question 4:

What is the gravitational field around a massive object?

A) A region with zero gravity
B) A region with infinite gravity
C) A region with uniform gravity
D) A region with varying gravity

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Explanation: The correct answer is C) A region with uniform gravity. The gravitational field around a massive object, such as a planet or a star, is a region with uniform gravity. The strength of the gravitational field is determined by the mass of the object and decreases with increasing distance from the object.

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Question 5:

What is the direction of the gravitational field inside a massive object?

A) Towards the center of the object
B) Away from the center of the object
C) Zero
D) It depends on the shape of the object

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Explanation: The correct answer is A) Towards the center of the object. Inside a massive object, such as a planet or a star, the gravitational field is directed towards the center of the object. The magnitude of the gravitational field decreases as one moves closer to the center of the object.