Magnet

Jordan places four ring magnets A, B, C and D onto a wooden stand as shown.

If he wants the four ring magnets to be attracted to each other, which magnet A, B, C or D should he flip?

• A

• B

• C

• D

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

The diagram shows what happens when bars X and Y are brought near to each other.

Which one of the following statements is correct?

• X is a magnet but Y is a magnetic material.

• Both X and Y are magnets.

• X is made of aluminium but Y is made of iron.

• Both X and Y are made of non-magnetic materials.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Sally used the set-up shown in the diagram to attract iron paper clips.

She increased the number of turns of wire in the set-up and recorded the number of paper clips attracted.

Which graph shows the result of her experiment?

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Tags

NGSS.MS-PS2-3

Bob placed Magnet X on Car 1 and Object Y on Car 2 as shown. He observed that the cars moved away from each other when they were placed near each other.

Which of the following statement(s) about Object Y is/are correct?

A: Object Y is a non-magnetic material.

B: Object Y is a magnetic material.

C: Object Y is a magnet.

• A only

• C only

• A and B only

• A and C only

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Lily attached a magnetised iron bar P to a string and placed magnet Q near to it. She observed that iron bar P moved in the direction as shown in the diagram.

Which of the following actions would cause iron bar P to move further away from magnet Q?

A Heat iron bar P over a flame.

B Drop iron bar P onto the ground for a few times.

C Stroke iron bar P with the magnet for a greater number of times.

• B only

• C only

• A and B only

• A, B and C

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

The diagram shows an arrangement of three magnets. The poles of the magnets are labelled A, B, C, D, E and F respectively.

Which one of the following arrangements of the three magnets is possible?

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Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

The diagram shows a way to separate a mixture of materials.

Which of the following shows the materials that can be found in bins P and Q?

• Bin P: iron, nickel

  Bin Q: aluminium, plastic

• Bin P: cobalt, plastic

  Bin Q: copper, steel

• Bin P: nickel, cobalt

  Bin Q: iron, plastic

• Bin P: plastic, aluminium

  Bin Q: cobalt, nickel

Magnus wants to find out if the number of coils will affect the strength of an electromagnet. He prepares four different set-ups A, B, C and D as shown.

Which two set-ups should he use to make a fair comparison?

• A and C

• A and D

• B and C

• B and D

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5