Guided Practice: Forces & Motion
Quick Review
- Force = A push or pull on an object
- Motion = A change in position
- Friction = A force that slows down or stops motion
- Gravity = A force that pulls objects toward Earth
- Speed = How fast something moves
Practice Problems
1. What happens when you push a toy car?
A) It stays still
B) It moves in the direction you pushed
C) It disappears
D) It gets bigger
Answer
B) - A push is a force that causes motion in the direction of the force.
2. What force makes a ball fall to the ground when you drop it?
A) Friction
B) Magnetism
C) Gravity
D) Wind
Answer
C) Gravity - Gravity pulls objects toward Earth's center.
3. Why does a ball eventually stop rolling on grass?
A) Gravity pushes it down
B) Friction slows it down
C) It runs out of energy
D) The air pushes it
Answer
B) Friction - Friction between the ball and grass acts against the motion.
4. Which surface would a toy car roll farthest on?
A) Carpet
B) Gravel
C) Smooth tile
D) Sand
Answer
C) Smooth tile - Smooth surfaces have less friction, allowing objects to roll farther.
5. To make a swing go higher, you need to:
A) Use a smaller force
B) Use a greater force
C) Stop pushing
D) Pull backward
Answer
B) Greater force - More force causes more motion (greater height).
6. Which is an example of a pull?
A) Kicking a ball
B) Opening a drawer
C) Throwing a ball
D) Pushing a shopping cart
Answer
B) Opening a drawer - You pull a drawer toward you to open it.
7. What happens when two people push a box in opposite directions with equal force?
A) The box moves toward one person
B) The box stays still
C) The box disappears
D) The box moves up
Answer
B) Stays still - Equal forces in opposite directions cancel out (balanced forces).
8. A feather falls slower than a rock because:
A) Gravity doesn't affect feathers
B) Air resistance (friction with air) affects the feather more
C) Rocks are magnetic
D) Feathers float on gravity
Answer
B) - Light objects with more surface area are slowed more by air resistance.
9. Which requires more force to move?
A) An empty box
B) A box full of books
C) They require the same force
D) Neither can be moved
Answer
B) Box full of books - Heavier objects require more force to move.
10. A magnet attracting a paper clip is an example of:
A) A push
B) A pull
C) Gravity
D) Friction
Answer
B) A pull - Magnetism pulls certain metal objects toward the magnet.
Next Steps
- Test different forces on objects at home
- Compare how objects move on different surfaces
- Continue to the Investigation Lab