Force & Motion — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. Two magnets that pull toward each other are said to attract.
Opposite poles of magnets pull together. This pulling force is called attraction.
2. Two magnets that push away from each other are said to repel.
Like poles push apart. This pushing force is called repulsion.
3. A magnet can stick to a paperclip because paperclips are made of iron.
Magnets attract iron, nickel, and steel. Paperclips are usually made of iron or steel.
4. A magnet will not stick to a wooden block because wood is not magnetic.
Magnets only pull on certain metals. Wood, plastic, and glass are not magnetic.
5. The ends of a magnet where its pull is strongest are called the poles.
Magnetic force is strongest at the two poles, which are the north and south ends.
6. Rubber bands and plastic straws are not attracted by magnets.
Plastic and rubber have no iron, so magnets cannot pull them.
7. If you turn one magnet around, two ends that once attracted may now repel.
When same poles face each other, they push apart instead of pulling together.
8. A magnet can pull an iron nail even through a thin piece of paper.
Magnetic force can reach through thin, non-magnetic materials like paper or cloth.
9. Magnets have two poles: one is called north and the other is called south.
Every magnet has a north pole and a south pole at its two ends.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
Two north poles facing
→ Pushes apart because same poles repel
Pulls together because opposites attract
North and south poles facing
→ Pulls together because opposites attract
Nothing happens because it is not magnetic
Iron paperclip near magnet
→ Gets pulled and sticks to the magnet
Gets pulled and sticks to the magnet
Wooden pencil near magnet
→ Nothing happens because it is not magnetic
Pushes apart because same poles repel
Magnets attract opposite poles and iron objects, but they repel like poles and do not affect wood or plastic.