Unit Checkpoint: Forces & Motion
Instructions
This checkpoint tests everything you learned about forces and motion. Answer all questions to see how well you've mastered these concepts.
Questions
1. What is a force?
A) A type of energy
B) A push or pull on an object
C) How fast something moves
D) A type of motion
Answer
B) - A force is any push or pull acting on an object.
2. What force pulls objects toward Earth?
A) Friction
B) Magnetism
C) Gravity
D) Electricity
Answer
C) Gravity - Gravity pulls all objects toward Earth's center.
3. What force slows down a sliding book?
A) Gravity
B) Friction
C) Magnetism
D) Wind
Answer
B) Friction - Friction acts between the book and the surface, opposing motion.
4. Which surface has the MOST friction?
A) Ice
B) Glass
C) Carpet
D) Smooth tile
Answer
C) Carpet - Rough surfaces like carpet create more friction than smooth ones.
5. To make a wagon move faster, you should:
A) Use less force
B) Use more force
C) Add more weight
D) Stop pushing
Answer
B) Use more force - Greater force causes greater acceleration.
6. Opening a door is an example of:
A) A push only
B) A pull only
C) Both push and pull (depends on direction)
D) No force
Answer
C) - You push a door to open it one way, or pull to open it the other way.
7. What happens when equal forces push an object from opposite sides?
A) The object moves toward one side
B) The object doesn't move (balanced forces)
C) The object disappears
D) The object moves faster
Answer
B) - Equal opposite forces cancel out, so there is no movement.
8. Why does a ball roll farther on a gym floor than on grass?
A) Grass has gravity
B) Gym floors have less friction
C) Grass is magnetic
D) Balls don't roll on grass
Answer
B) - Smooth gym floors have less friction than rough grass.
9. Which requires MORE force to push?
A) An empty wheelbarrow
B) A wheelbarrow full of rocks
C) They require the same force
D) Neither can be pushed
Answer
B) - Heavier objects require more force to move.
10. What causes a ball to eventually stop rolling?
A) It runs out of air
B) Gravity pulls it sideways
C) Friction removes its energy
D) It gets tired
Answer
C) - Friction acts against motion, gradually slowing the ball until it stops.
How Did You Do?
- 9-10 correct: Excellent! You've mastered forces and motion!
- 7-8 correct: Good job! Review the questions you missed.
- 5-6 correct: Keep practicing! Review the lessons in this unit.
- Below 5: Go back and review all the lessons before moving on.
Next Steps
- Review any concepts you found challenging
- Observe forces and motion in everyday life
- Continue to the Data Collection unit