Y8: Magnets

• Physics
• Lower Secondary (Key Stage 3)

Y8: Magnets

What do you already know about magnets?

Which metal is NOT magnetic?

1. Iron
2. Cobalt
3. Aluminium
4. Nickel

Three magnetic elements are cobalt, nickel and gold.

1. True
2. False

Magnetism is a contact force.

1. True
2. False

A North pole and a South pole will attract.

1. True
2. False

These magnets will...

1. Attract and move closer quickly.
2. Repel and move apart quickly.
3. Attract and move closer slowly.
4. Repel and move apart slowly.

These magnets will...

1. Attract and move closer quickly.
2. Repel and move apart quickly.
3. Attract and move closer slowly.
4. Repel and move apart slowly.

These magnets will...

1. Attract and move closer quickly.
2. Repel and move apart quickly.
3. Attract and move closer slowly.
4. Repel and move apart slowly.

Two pieces of metal are repelling each other. Explain why.

Magnetic South

Magnetic North

Geographic North

Geographic South

Label the poles.

North

South

North

South

Where is the magnetic field strongest?

Where is the magnetic field weakest?

Why might a hiker want to carry a compass with them?

What is the basic property of magnets?

1. Creating electricity
2. Absorbing light
3. Attracting magnetic materials
4. Repelling other magnets

Which materials are attracted to magnets?

1. Nickel
2. Plastic
3. Iron
4. Wood

What are the two poles of a magnet?

1. East pole
2. South pole
3. North pole
4. West pole

How do magnets affect compass needles?

1. They align with Earth's magnetic field
2. They float in water
3. They change color

What happens when like poles of magnets meet?

1. They attract each other
2. They merge into one
3. They repel each other

What is the Earth's core mainly composed of?

1. Silicon and magnesium
2. Aluminum and hydrogen
3. Carbon and oxygen
4. Iron and nickel

What generates the Earth's magnetic field?

1. Solid rock layers
2. Ocean currents
3. Solar winds
4. Movement of molten iron

How deep is the Earth's inner core?

1. About 10,000 miles
2. About 1,000 miles
3. About 5,000 miles
4. About 3,200 miles