What are things made of - Magnets

Magnets always have two poles. Can you name them?

• North and West

• East and West

• North and South

• South and East

Planet Earth has a magnetic field.

• True

• False

Towards which direction do compasses point?

• North

• South

• East

• West

Karla would like to move a toy race car without touching it. She decides to attach a magnet to the car, as seen in this photo. She has another magnet. How can she hold the other magnet to make the car move?

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What makes the car move forward in this image?

• The magnets are attracting each other.

• The magnets are repelling each other.

• The magnets are conducting each other.

• Karla pushed the car herself.

Steven decides to test out a magnet with different objects around him. What will his magnet be attracted to?

• An iron pencil sharpener.

• An aluminium window frame.

• A wooden cupboard.

• A glass jar.

Steven decides to take out some coins from his wallet and test out whether they are magnetic. He discovers that some of them stick to the magnet, while others do not. What is the reason behind this?

• It depends on the size of the coin.

• It depends on the metal the coin is made of.

• It depends on the colour of the coin

• It depends on the weight of the coin.

Identify the magnetic metals from the following list. Choose 3 metals.

• Iron

• Aluminium

• Nickel

• Cobalt

Sandra would like to test the strength of 2 magnets. She also has two paper clips. She adds sheets of paper one by one between the magnets and the paper clips and takes note when the paper clips fall and are no longer pulled by the magnet. What does she need to determine the strength of the magnet?

• Note the time it takes for the paper clip to fall

• Measure the weight of the magnets, the paper clips and the sheet of paper.

• Count the number of sheets of paper between the magnet and the paper clip.

Which magnet is the strongest in Sandra’s experiment in question 9?

• The magnet that has less sheets of paper separating it from the paper clip

• The magnet that has more sheets of paper separating it from the paper clip