Electricity

A material that does not allow electricity to flow through it

• Conductor

• Insulator

• Resistor

A material that allows electricity to flow through it easily

• conductor

• insulator

• resistor

The difference between attraction and repulsion is that to attract is to pull something closer and repel is to push something away.

• True

• False

Tags

NGSS.MS-PS2-3

Electrical charge built up on the surface of an object is called _________________.

• static electricity
• current electricity
• lightning
• electrons

What types of charges attract?

• Positive and Positive
• Positive and Neutral
• Negative and Neutral
• Positive and Negative

What happens when you touch a metal doorknob after rubbing your shoes on the carpet?

• The doorknob sends a burst of electric current into your body

• Millions of electrons go from your finger into the doorknob

• The doorknob sends millions of electrons into your finger

• Your finger becomes negatively charged

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which of the following is caused by static electricity?

• a stove getting hot when it is turned on
• a magnet being attracted to a refrigerator
• a lightning strike during a storm
• a light bulb coming on when a switch is turned on

The three basic components of a circuit are

• load, energy source, magnets

• wires, load, solenoid

• wires, load, energy source

• energy source, iron core, load

Which of the objects is not a conductor?

• the eraser only

• the envelope only

• the rubber band only

• all of the above

On dry, winter days, you feel a shock when

• extra neutrons jump off your body onto a metal object

• extra electrons jump off your body onto a metal object

• extra protons jump off your body onto a metal object

Tags

NGSS.MS-PS2-5