Amplify Force and Motion Unit Review

In order for an object to speed up, the direction of the force is:

• in any direction

• in the same direction as the object's motion

• in the opposite direction of the object's motion

In order for an object to stop moving, the force must come from

• the same direction as the object's motion

• the opposite direction as the object's motion

• any direction.

Which force caused the jar lid to travel faster and reach the end of the meter stick first?

• the weaker force

• the stronger force

• both forces had the same effect

Complete the sentence to match your observations: When you exert a stronger force on an object, you will see ________ change in velocity as compared to exerting a weaker force on the same object.

• a greater

• a weaker

• the same

A push or pull that can cause motion.

• velocity

• speed

• cause

• force

The force applied to an object as it moves across a surface is...

• friction

• change in velocity

• slow down

• speed up

If two objects of different masses have the same force strength exerted on them, which object will have the greater change in velocity?

• the more massive object

• the less massive object

• the first object

• the object moving faster

Which model correctly displays an object slowing down due to a force.

• 
• 
• 
• 

In which crash did the puck experience a stronger force?

• The puck didn't experience a force. Only the paddles experienced force.

• Crash 2: The force of the purple paddle was stronger in this crash because it has more mass, so the force on the puck was stronger,

• The diagram doesn't tell you anything about the force on the puck.

• The puck experienced the same force in both crashes.

In which crash did the test car experience a stronger force?

• Crash 1: Force on garbage truck was stronger, so force on car was also stronger.

• There is NO force on the car. In each crash, only the truck experienced force.

• It was the same from both crashes. The trucks changed speed by the same amount in both crashes, so the force on the test car was the same both times.

• The diagram doesn't tell you anything about the force on the test car. It only tells you about the force on the trucks.