Gravity & Friction

Q. The force of gravity on an object is also known as

• mass

• weight

• friction

• pressure

As distance between two objects increase (objects get farther apart), the pull of gravity

• increases also

• decreases

• stays the same

A person weighs _____ on the Moon than they do on the Earth because the moon is less massive than the Earth.

• less

• more

• the same

Objects with more mass have ____ gravity.

• more

• less

• the same

Friction is a force that acts in the ___________ direction of movement.

• same

• opposite

• parallel

• west

How does friction affect speed?

• More friction slows an object down.

• More friction speeds an object up.

• Friction does not affect speed.

Which of the following is an example of friction that is helpful?

• brakes used on a bike

• tires from a car on the road

• tread on the bottom of your shoes

• All of these are examples that are helpful.

6. What type of friction does an object at rest have? This must be overcome to get the object to start moving.

• sliding

• rolling

• static

• fluid

Check all that are considered FLUIDS.

• gas

• liquid

• solid

Mass is measured in _____, while weight is measured in _____.

• kg, N

• N, kg

• m/s, m/s^2

• m/s² , m/s