8. I were to try to connect the north pole of one magnet to the south pole of another
magnet, the two poles would
A attract
В. repel
C. neither Do
7. In order for an electromagnet to be formed, an
current most pass through
a coil of
wrapped around an
core .
A. wire, Iron, electric
C. ron, electric, wire
B. electric, wire, iron
D. excited, halt, apple
8. While electric current is flowing through a wie, what surrounds the wire
A. a magnetic field
C. neutrons
B. a glowing light
D. protons
9. What is the flow of electrical charges called
A. voltage
B. resistance C. current/electricity D. circuit
10. Electricity is the flow of
A. protons
B. neutrons C. electrons
D. nucleus
11. Which subatomic particle has a negative charge?
A. Proton
B. neutron C. electron D. enlighten
12. What will happen when these magnets are brought close together?
A. They will attract each other. C. Both magnets will turn to the left
B. They will repel each other.
D. Both magnets will turn to the right
13. What does a motor do?
A. Moves up and down
B. Rotates without electricity
C. It does not rotate
D. Uses electricity to rotate
14. What is most likely to happen when the switch is closed?
A. A magnetic field should be produced
B. The nail will rust
C. The battery will explode
D. The wire will catch on fire
15. How are electromagnets different from magnets
A. magnets can be turned on/off
B. you can tum an electromagnet on/off
C. magnets are more powerful
D, magnets have a North and South pole