Gravitation Physics Concepts Quiz

Two identical objects are dropped from the same height on Earth. One is at rest, and the other has an initial horizontal velocity. Which object hits the ground first?

• The one at rest

• The one with horizontal velocity

• Both hit the ground at the same time

• The one with more mass

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How does increasing the distance between two objects affect the gravitational force between them?

• It increases linearly

• It decreases linearly

• It decreases exponentially

• It decreases proportionally to the square of the distance

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If a 5 kg object experiences a gravitational force of 50 N on Earth, what is the acceleration due to gravity?

• -5 m/s²

• -10 m/s²

• 10 m/s²

• 50 m/s²

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Why does an astronaut weigh less on the Moon than on Earth?

• The Moon has no gravity

• The Moon is farther from the Sun

• The Moon has less mass than Earth

• The Moon’s atmosphere reduces gravity

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If the Earth suddenly doubled in mass but remained the same size, how would your weight change?

• It would stay the same

• It would double

• It would be cut in half

• It would decrease slightly

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If the gravitational force on an object is quadrupled, what can you say about the mass or distance between the objects?

• The mass of one object must have doubled

• The distance between the objects must have doubled

• The distance between the objects must have been halved

• The gravitational constant must have increased

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A ball is thrown horizontally from a cliff. What happens to its horizontal velocity as it falls (assuming no air resistance)?

• It increases

• It decreases

• It stays constant

• It becomes zero

Why does a projectile follow a curved path instead of moving in a straight line?

• The horizontal motion is accelerating

• The force of gravity only acts at the start

• The force of gravity acts downward while the object moves forward

• Air resistance pushes it downward

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If a cannonball is dropped and another identical one is fired horizontally from the same height, which one hits the ground first?

• The dropped cannonball

• The fired cannonball

• Both at the same time

• The one with greater mass

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What is the only force acting on a projectile in motion if we neglect air resistance?

• Friction

• Gravity

• Normal force

• Tension

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