Unit 6 Magnetism Review

The north pole of a compass needle points toward Earth's geographic north pole because

• Earth's geographic north pole is the magnetic south pole and repels the needle's north pole.

• Earth's geographic north pole is the magnetic north pole and repels the needle's north pole.

• Earth's geographic north pole is the magnetic south pole and attracts the needle's north pole.

Like poles __________, north and south poles __________.

• repel; attract

• attract; repel

• attract; attract

Tags

NGSS.3-PS2-3

The magnetic field is strongest at point ____.

• Point A

• Point B

• Point C

• Point D

Tags

NGSS.MS-PS2-3

As the distance between two magnetic poles increase, the magnetic force

• increases.

• remains constant.

• decreases.

Tags

NGSS.MS-PS2-3

If the magnet in the picture was cut, what would the result be?

• 
• 
• 

Tags

NGSS.MS-PS2-5

Electric current passing through a wire produces

• a permanent magnet.

• geographic poles.

• a magnetic field around the wire.

Tags

NGSS.MS-PS2-5

After being transmitted by a power plant and before it enters your home, electric current should pass through a

• step-up transformer.

• turbine.

• step-down transformer.

Tags

NGSS.MS-PS3-4

[ V_out = (N₂/N₁) V_in ] A transformer has 10 turns of wire in the primary coil and 100 turns in the secondary coil. If the input voltage is 5 V, the output voltage is _____ V.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-3

Which of the following is a form of electromagnetic induction?

• producing mechanical energy by sending electric current through an electromagnet

• producing electric current by moving a magnet through a wire loop

• using an electromagnet to measure electric current

Tags

NGSS.HS-PS2-5

A(n) ________ produces electric current.

• galvanometer

• electric motor

• generator