Electricity And Circuits

Question 1

Is three lamps in series or parallel brighter

Answer 1

Parallel

Question 2

What is the unit for charge

Answer 2

Coulombs

Question 3

What happens to the current as resistance gets larger

Answer 3

It decreases

Question 4

The current is smaller when the resistance is

Answer 4

Larger

Question 5

What is electric current

Answer 5

The flow of electrical charge

Question 6

What 2 factors does the current depend on

Answer 6

Potential difference
Resistance

Question 7

List 4 components when resistance isn’t constant as current changes

Answer 7

Lamps
Diodes
Thermistors
Light dependent resistors

Question 8

What happens to the resistance of a filament lamp as the temperature increases

Answer 8

Resistance increases

Question 9

What happens to the resistance of a thermometer as temperature increases

Answer 9

Resistance decreases

Question 10

Give 2 examples of when a thermistor is used

Answer 10

In a thermostat to turn a heater on a below a certain temperature
In a freezer to turn on a cooler when temperature is too high