Primary 3 Science · Worksheet

Making Magnets

Name:Date:Marks: / 16

Section A · Multiple choice 5 marks

1. Which of these is attracted to a magnet?

(A) A wooden ruler(B) A steel clip(C) A plastic cup(D) A rubber eraser

2. Which method makes a magnet by coiling wire around an iron nail?

(A) The electrical method(B) The stroke method(C) The hanging method(D) The pushing method

3. Ali strokes a steel needle with one pole of a magnet. How should he stroke it to make a magnet?

(A) Back and forth with both poles(B) In different directions each time(C) With the magnet held still on the needle(D) In the same direction, using the same pole each time

4. Mei coils wire around a nail and connects it to a battery. How can she make this electromagnet stronger?

(A) Use a shorter wire(B) Use a wooden nail(C) Add more turns of wire(D) Remove the battery

5. Which of these uses an electromagnet?

(A) A compass(B) A crane lifting iron in a scrapyard(C) A fridge door(D) A doorstop

Section B · Fill in the blanks 5 marks

Word bank: non-magnetic · stronger · clips · north-south · one

6. Aluminium and copper are metals, but they are materials.

7. The more times a steel nail is stroked, the the magnet it becomes.

8. We can measure how strong a magnet is by counting the number of steel it attracts.

9. A freely hanging magnet rests in the direction.

10. In a fair test, we change variable only.

Section C · Short answers 6 marks (2 each)

11. Name the two ways to make a magnet from a piece of steel or iron.

12. Raj wants to find out if more turns of wire make a stronger electromagnet. What should he change, and what should he keep the same? Give one thing he should keep the same.

13. Why is an electromagnet useful for lifting iron in a scrapyard?

Shukr Learns · free practice for parents and children · original questions, not affiliated with any school or agency