Magnetism Comprehensive Quiz for 9th Grade

When a magnet is broken into two pieces, what happens to each piece?

• The pieces lose all magnetic properties
• Each piece becomes a complete magnet with two poles
• Only the larger piece remains magnetic
• The pieces become non-magnetic materials

Which of the following materials is NOT a magnetic substance?

• Iron
• Steel
• Copper
• Cobalt

What happens when two magnets with North poles are brought close together?

• They attract each other
• They repel each other
• They remain neutral
• They merge into one magnet

In the grip rule for electrical magnetization, what does the thumb indicate?

• South pole
• East pole
• North pole
• West pole

Which type of material retains magnetism more effectively?

• Soft iron
• Hard steel
• Aluminum
• Wood

When a freely suspended magnet aligns itself, which direction does it point?

• East-West
• North-South
• Up-Down
• Random direction

What happens during magnetic induction?

• A magnet loses its magnetic properties
• A nearby iron bar becomes temporarily magnetized
• Two magnets completely cancel each other
• Magnetic fields disappear

Which method involves stroking a steel bar with a strong magnet?

• Electrical magnetization
• Chemical magnetization
• Magnetic induction
• Magnetic stroking

What determines the strength of magnetization in a solenoid?

• The color of the wire
• The current and number of wire turns
• The material of the solenoid
• The shape of the solenoid

Which of these is a magnetic substance?

• Glass
• Brass
• Nickel
• Wood