G8 Magnetism

Multiple Choice

What does Azeez's activity show?

• Bar 1 is made of iron

• Bar 2 is made of nickel

• Bar 3 is made of silver

• Bar 4 is made of Cobalt

Multiple Choice

1. What will happen when these magnets are brought close together?

• They will attract each other.

• They will repel each other.

• Both magnets will turn to the left

• Both magnets will turn to the right

Multiple Choice

9. Once a paperclip touches a magnet and becomes a magnet itself, does a paperclip STAY that way? Or does it stop being a magnet?

• stay that way forever

• stop being a magnet

• stay that way for a short time

Multiple Choice

Which part of the electromagnets turned into a magnet when electricity flows through a coiled wire?

• Battery

• Copper wire

• Iron Nail

• Bulb

Multiple Choice

The strongest part of a magnet is...

• the bars.
• the force field.
• the poles. 
• the middle.

Multiple Choice

This substance is

• magnetized
• unmagnetized
• positively charged
• negatively charged

Multiple Choice

You know this substance is magnetized because

• all the domains have right angles
• the arrows are drawn in red
• the domains are aligned
• the domains are random

Multiple Choice

Which statement is true?

• Two north poles attract each other.

• Two south poles attract each other.

• A north pole and a south pole will repel each other.

• A north pole and a south pole will attract each other.

Multiple Choice

Which of these bests describes an electromagnet?

• A permanent magnet made from electric currents.

• A temporary magnet made from electric currents.

• A temporary magnet made from magnetic currents.

Multiple Choice

Bob made an electromagnet but it was very weak. How can he make it stronger?

• Increase the flow of current

• wrap the wire loosely

• use less coils

• Use thin core of iron