Which requires more force to move?
pencil or textbook

A force that holds back the movement of a sliding object.

Energy of motion (moving energy)

On a flat surface, the ball with __________ mass goes a greater distance

Brandon was riding the bus when it came to a sudden stop. What happened to Brandon?

Sally rolled two balls down a ramp, but she applied a different force to each ball. She applied more force to the first ball. This ball went ____________.

A push or a pull

Stored energy

On a ramp, the ball with ___________ mass goes the greater distance

Fourth graders are planning a roller-skating race. Which surface would be the best for this race?
gravel, sand, blacktop (road), grass

Objects move _______________

A force that causes things to fall towards Earth.

When the roller coaster is at the top of the hill, it has __________ energy

Suzy placed a ball at the top of a 2 foot ramp and one at the top of a 5 foot ramp. Which ball went farther?

Rob is ice skating. His older brother comes form behind and pushes him. This will cause Rob's speed to ______

Lacy and Aaron are on on opposite sides of a desk. Both students are pushing the desk, but the desk is not moving. What kind of force is this?

Amount of matter something has

When the roller coaster is going down the hill, it has ___________ energy

Tom rolled a ball on the carpet and then rolled the same ball on a tile floor. On which surface did the ball roll farther?

Which surface has the most friction?

notebook paper, wood, plastic, sandpaper

Shawn pushes a desk across the room. What kid of force is this?

Something that is not moving remains still. If the object is moving, it goes the same speed and direction until another force acts on it.

As a ball rolls down a ramp onto the floor, it begins to slow down. This is because it is losing ______ energy and gaining _________ energy

Name 3 ways you can make an object go farther when being rolled down a ramp.

Two students entered a football throwing contest. Amy threw the ball 12 meters and Joan thew the ball 9 meters. Who applied the greatest force?