P3 Magnets and their characteristics

Which of the following objects can be attracted to a magnet?

• steel clip

• cotton rag

• plastic fork

• aluminium foil

Two toys, P and Q, and magnet X were placed as shown in the diagram.

Joyce observed that toy P moved towards magnet X while toy Q moved away from magnet X. Based on her observations, which of the following statements is definitely correct?

• Toy P is a magnet.

• Toy Q is a magnet.

• Toy P is made of a non-magnetic material.

• Toy Q is made of a non-magnetic material.

 A bar magnet is held above a tray of iron pins as shown in the picture.

Which of the following shows where the pins will be attracted to?       

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Five bar magnets with their ends marked A to J can be arranged in the picture shown.

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The diagram shows how three bars, X, Y and Z, interact with one another.

Based on the diagrams, which bar(s) is/are definitely magnet(s)?

• Y only

• Y and Z only

• X and Y only

• X, Y and Z

Which of the following mixtures of items can be separated using a magnet only?

• flour and sugar

• iron powder and steel powder

• rice and copper powder

• iron powder and copper powder

Melvin set up an experiment as shown in the diagram below. However, the rod could not attract any magnetic material.

Which of the following could be reason(s) why the rod could not attract any magnetic material?

A: The rod was made of iron.

B: The battery is not working.

C: The number of turns in the coil of wire was too few.

• A only

• A and B only

• B and C only

• A, B and C

Sue placed two objects, A and B, through a holder as shown in the picture.

Which of the following statements is definitely correct?

• Object A and object B are non-magnetic.

• Object A is magnetic but object B is non-magnetic.

• Object A is non-magnetic but object B is magnetic.

• Object A and object B are magnets.