Force and Energy #2

What is speed?

• A measure of how fast something moves.

• A measure of how you move.

A force can____________.

• make an object move

• make a moving object stop moving

• slow an object down

• all of the above

True or false: An object resting on the ground can move without force.

• True

• False

When you push or pull something, you are creating_________________.

• weight

• a speed

• a force

• a surface

Which of the following would it take the most force to move?

• a 3-pound ball

• a 5 pound ball

• a 15 pund ball

• a 25 pound ball

Imagine you kick four balls with the same amount of force. Which one will go the farthest?

• a 3 pound ball

• a 5 pound ball

• a 15 pound ball

• a 25 pound ball

What does the force of gravity do to objects?

• It makes them float

• it makes them jump

• it pulls them to the center of earth

• it pushes them apart

What does the word mass mean?

• The amount of matter in an object

• the speed an object falls

• how high a person can jump

• how far an object can be thrown

An example of the force of gravity is-

• a rocket flying through space

• a ball falling to the ground after it has been thrown

• a cloud moving across the sky

• the Sun rising

Henry rolled a car across the floor. He then applied a force to the car. The force was one of the four forces shown by the arrows. Which force will MOST likely increase the car's speed?

• Force A

• Force B

• Force C

• Force D