T3 Science Review Part 2

What effect does increasing the mass of an object have on its gravitational potential energy?

• Increases the potential energy

• Decreases the potential energy

• Has no effect on the potential energy

• Initially increases then decreases the potential energy

Which of the following would have the greatest potential energy?

• A book on the floor

• A book on a low shelf

• A book on a high shelf

• A book in a drawer

Will it take more force to push an empty shopping cart or a shopping cart that is full?

• The empty shopping cart

• The full shopping cart

• They will take the same amount of force

Which of the following is a unit of force?

• Joule

• Newton

• Watt

• Meter per second

Which of the following scenarios involves friction?

• A ball rolling on a smooth floor

• A book sliding down a ramp

• A fish swimming in water

• Both A and B

The force that pulls objects toward the center of the Earth is called:

• Magnetic force

• Gravitational force

• Electric force

• Nuclear force

What is the effect of friction on the motion of objects?

• It speeds them up

• It slows them down

• It changes their direction

• It has no effect

Friction is a force that:

• Increases motion

• Decreases motion

• Has no effect on motion

• Changes the direction of motion

Which of the following is an example of balanced forces?

• A car accelerating on a highway

• A book resting on a table

• A ball rolling down a hill

• A rocket launching into space

If two forces act in opposite directions on an object and are not equal in magnitude, the forces are:

• Balanced

• Unbalanced

• Canceling each other out

• Adding up