GENERATORS AND MOTORS QUIZ

While electric current is flowing through a wire, what surrounds the wire?

• a magnetic field
• a glowing light
• neutrons
• protons

What would increase the strength of an electromagnet?

• Increasing the amount of current flowing through the wire.

• Inserting a wooden core inside the coil

• Changing the direction of the current

• Decreasing the number of coils of wire

What must the student do in the picture, in order to induce electricity and move the the galvonometer

• nothing

• move the magnet

• add more loops of wire

• unplug the galvnonmeter

What happens to the strength of an electromagnet as you add more coils around it?

• Increases
• Decreases
• Stays the same
• Stops completely

What is the transfer of electricity in a generator?

• Mechanical to Electrical 
• Physical to Potential 
• Electrical to Mechanical
• Yogurt to Light

A transformer actually transforms

• voltage

• magnetic field lines

• generators into motors

A device that transforms electric energy to mechanical or kinetic energy is a

• generator

• motor

• transformer

• magnet

How are electromagnets different from permanent magnets?

• magnets can be turned on/off

• you can turn an electromagnet on/off

• magnets are more powerful

• magnets have a North and South pole

Based on this picture, which side will have a higher voltage?

• Secondary
• Primary
• Both sides have the same voltage
• Cannot be determined

What is the device seen here?

• generator
• electric motor
• electromagnet
• magnet