Electricity and Magnetism

In a static discharge, which particles move from one object to another?

• protons
• neutrons
• electrons
• atoms

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which of these in an insulator?

• a copper wire
• a silver spoon
• a plastic coating on a wire
• an aluminum coating on a wire

What is the purpose of a switch in an electric circuit?

• to allow the circuit to be opened or closed
• to change the direction of the current
• to provide a push for the current
• to increase the electric power to the load

What is the purpose of an electric motor?

• to convert electrical energy to mechanical energy
• to convert chemical energy to electrical energy
• to convert mechanical energy to electrical energy
• to convert mechanical energy to heat energy

Tags

NGSS.HS-PS3-3

A group of lights are connected in a parallel circuit.  One of the lights is removed.  The rest of the lights will

• get brighter
• get dimmer
• go out
• not change

Two lightbulbs are connected to an energy source by two loops.  What is this setup an example of?

• a parallel circuit
• a static discharge
• a series circuit
• an electromagnet

When a switch connects two parts of a circuit, the circuit is

• series
• parallel
• open
• closed

A string of lights is lit.  They are part of a series circuit.  One of the bulbs is removed.  The rest of the lights will

• go out
• stay lit
• get brighter
• get dimmer

Like poles of a magnet do what?

• repel
• attract 
• nothing 

Tags

NGSS.MS-PS2-3

What device makes a fan plugged into the wall spin?

• generator
• battery
• electromagnet
• electric motor