Current, Charge, Power

Question 1

What happens when an electrical charge flows through a resistor?

Answer 1

It gets hot

Question 2

What type of bulb wastes a lot of energy through heating?

Answer 2

Filament bulbs

Question 3

What type of bulb wastes less energy?

Answer 3

Compact fluorescent lamps

Question 4

What should you consider when buying an electrical appliance?

Answer 4

How efficiently they transfer energy

Question 5

What is power?

Answer 5

The rate at which energy is transferred by an appliance

Question 6

What’s power measured in?

Answer 6

W

Question 7

What’s energy measured in?

Answer 7

J

Question 8

What’s time measured in?

Answer 8

s

Question 9

What’s current measured in?

Answer 9

A

Question 10

What’s potential difference measured in?

Answer 10

V

Question 11

What’s charge measured in?

Answer 11

C, coulombs