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Worksheets

Electricity

Total questions: 15

Worksheet time: 15mins

Name
Class
Date
1.

What does this symbol represent?

a)

resistor

b)

switch

c)

power source

d)

light bulb

2.

What does this symbol represent?

a)

switch

b)

resistor

c)

power source

d)

light bulb

3.

What does this symbol represent?

a)

resistor

b)

switch

c)

power source

d)

light bulb

4.

What is the flow of electrons through a conductor known as

a)

Voltage

b)

resistance

c)

electricity

d)

power

5.

Which of the following can be measured from the power source or battery in a circuit?

a)

voltage

b)

amperage

c)

resistance

d)

power

6.

Which of the following can be measured in the wire of a circuit?

a)

voltage

b)

amperage

c)

resistance

d)

power

7.

What can be measured from the appliances that use the electricity?

a)

resistance

b)

voltage

c)

amperage

d)

power

8.

What units are resistance measured in?

a)

ohms

b)

volts

c)

amps

d)

watts

9.

What units are intensity measured in?

a)

amps

b)

watts

c)

volts

d)

ohms

10.

Electrical power is measured in watts. How do you find watts?

a)

volts x amps

b)

volts x ohms

c)

ohms x amps

d)

amps x amps

11.

What is Ohm's law?

a)

V= IR

b)

V = I/R

c)

V = R/I

d)

I = VR

12.

What is an open circuit?

a)

a broken circuit

b)

a closed circuit

c)

a working circuit

d)

I do not know

13.

What is a closed circuit?

a)

open circuit

b)

working circuit

c)

broken circuit

d)

not working circuit

14.

An alarm clock draws 0.5 A of current when connected to a 120 volt circuit. What is the resistance?

a)

240 ohms

b)

0.005 ohms

c)

120 ohms

d)

0.5 ohm

15.

A 12 Volt battery pushes charge through the headlight circuit resistance of 10 ohms. How much current is passing through the circuit?

a)

1.2 A

b)

5/6 A

c)

12 A

d)

10 A