Force & Motion — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. A push or a pull acting on an object is called a force.
Force is the word for any push or pull on an object.
2. The force that pulls everything down toward Earth is gravity.
Gravity is Earth's pulling force that makes objects fall.
3. A force that slows sliding objects is friction.
Friction between two surfaces slows sliding motion.
4. When you tug a wagon toward you, you are using a pull.
Tugging brings the wagon closer, which is a pull.
5. When you shove a box across the floor, you are using a push.
Shoving moves the box away from you, a pushing force.
6. An object that is not moving is said to be at rest.
At rest means an object is still and not moving.
7. A change in position over time is called motion.
Motion is a change in an object's position over time.
8. A leaf falling from a tree is pulled down by gravity.
Gravity pulls the falling leaf toward the ground.
9. A sled slowing on bare pavement is slowed by friction.
Friction between sled and pavement slows the sled.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
gravity
→ ball falls down
ball falls down
friction
→ sled slows in snow
sled slows in snow
push
→ door opens outward
door opens outward
pull
→ rope drops bucket
rope drops bucket
Each force acts differently, and the examples show each type clearly.