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SCI Tech Electricity 2

Total questions: 12

Worksheet time: 16mins

Name
Class
Date
1.
Electricity is caused by the movement of
a)
protons
b)
neutrons
c)
electrons
d)
ions
2.
What is a switch's function in a circuit?
a)
to make the current hotter or colder
b)
turn on and off the flow of current
c)
the pathway that current flows
d)
to add more power to the circuit
3.

If the light is on, the circuit is _________________.

a)

closed

b)

open

c)

full

d)

confused

4.
What electrical term is abbreviated as AC?
a)
alternating current
b)
ampere current
c)
active current
d)
Anaphoresis current
5.

A kilowatt (kW) is how many watts?

a)

10

b)

50

c)

100

d)

1000

6.

The unit used for electricity used by a consumer is:

a)

Kilowatt Hour (kWh)

b)

Watt

c)

Joule

d)

Amp

e)

Pounds

7.
What is the power of a 20V bulb with 5A through it?
a)
100W
b)
100V
c)
6.3W
d)
6.3A
8.

How much does it cost to light six 100 W light bulbs for 6 hours if the price of electrical energy is $0.09/kWh? Use rounding to nearest cent.

a)

$4.00

b)

$.24

c)

$.32

d)

$32.40

9.

What will be the current drawn (amperage) by an electric bulb of 1000 W when it is connected to a source of 220 V?

Remember: volts x amps = watts

a)

4.55 A

b)

28800 J or 28.8 KJ

c)

80 W

d)

200 W

e)

deep ocean

10.

Electrical power or watts can be calculated using which equation? watts =

a)

Resistance x Voltage

b)

Voltage x Amps

c)

Voltage ÷ Amps

d)

A total guess

11.

If a microwave uses 110V and draws current of 5.0 amps, how much is that microwave's wattage?

a)

5.50w

b)

550w

c)

500w

d)

110w

12.

A flow of electrons through a circuit is called:

a)

A river

b)

A spark

c)

An electron flow

d)

A current

e)

Burrito Night