Electricity and Magnetism

Does this represent attraction or repulsion?

• attraction
• repulstion

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Does this show attraction or repulsion? 

• attract
• repel

Tags

NGSS.MS-PS2-4

What material is a good conductor?

• copper
• wood
• rubber
• plastic

What material is an insulator?

• coper
• silver
• gold
• plastic

Tags

NGSS.MS-PS3-3

A material through which electrons can easily flow. 

• insulators
• conductors

The current in a hair dryer measures 15.0 Amps. The resistance of the appliance is 8.0 ohms. What is the voltage?

• 120 V

• 0.5 V

• 7.0 V

• 1800 V

Which of the following represents Ohm’s law?

• I = V / R

• V = I x R

• R = V x I

• V = I / R

If you break a bar magnet in half, each half...

• contains one magnetic pole.

• becomes a bar magnet with two poles.

• becomes unmagnetized.

• is only temporarily magnetized.

What creates a magnetic field?

• charged particles that do not move

• moving electric charges

• gravity

• an isolated magnetic pole

Tags

NGSS.MS-PS2-3

What is this?

• magnet
• electromagnet
• series circuit
• parallel circuit

Tags

NGSS.MS-PS2-3