Unit 2/Unit8 Forces and Motion Quiz

A box is at rest on a flat surface. If two people push the box from opposite sides with equal force, what will happen to the motion of the box?

• The box will move in the direction of the stronger person.

• The box will remain at rest.

• The box will move in circles.

• The box will accelerate upward.

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A student pushes a cart with a constant force, and the cart moves at a constant speed. What does this indicate about the forces acting on the cart?

• The forces are unbalanced.

• The forces are balanced.

• There are no forces acting on the cart.

• The cart is accelerating.

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If you double the mass of an object while applying the same force, what happens to its acceleration?

• It doubles.

• It is cut in half.

• It stays the same.

• It becomes zero.

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Which of the following best describes inertia?

• The tendency of an object to change its motion.

• The tendency of an object to resist a change in motion.

• The force that moves objects.

• The speed of an object.

A car travels 100 meters in 5 seconds. What is its average speed?

• 10 m/s

• 20 m/s

• 25 m/s

• 50 m/s

If a graph shows a straight line with a positive slope when plotting distance versus time, what does this indicate about the object's motion?

• The object is at rest.

• The object is moving at a constant speed.

• The object is accelerating.

• The object is slowing down.

Which of the following simple machines provides a mechanical advantage by increasing the distance over which a force is applied?

• Lever

• Pulley

• Inclined plane

• Wheel and axle

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NGSS.MS-PS2-2

If you use a lever to lift a heavy object with less effort, what are you increasing?

• The work done

• The mechanical advantage

• The mass of the object

• The gravitational force

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If two objects of different masses are dropped from the same height in a vacuum, what can be said about the gravitational force acting on them?

• The heavier object experiences less gravitational force.

• Both objects experience the same gravitational force.

• The heavier object experiences more gravitational force.

• The lighter object experiences more gravitational force.

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Which statement best describes the relationship between mass and gravitational force for falling objects?

• Gravitational force decreases as mass increases.

• Gravitational force is independent of mass.

• Gravitational force increases as mass increases.

• Gravitational force is always zero.

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