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ELECTRICITY

Total questions: 15

Worksheet time: 10mins

Name
Class
Date
1.

Which of these is caused by static electricity?

a)

A magnet attracts a paper clip

b)

Glue holds two pieces of paper together

c)

Socks taken from a clothes dryer stick together

d)

Ice sticks to a car’s windshield

2.

An electric circuit contains a battery, a switch, and a bulb. Which of the following will MOST LIKELY happen if you add another battery to the circuit?

a)

The bulb will not shine

b)

The bulb will shine brighter than it did with one battery

c)

The bulb will shine the same

d)

The bulb will shine half as bright as it did with one battery

3.

A thin strip of metal foil has a negative electric charge. You bring a balloon that also has a negative charge near the foil. What will MOST LIKELY happen?

a)

The foil will bend toward the balloon

b)

The foil will bend away from the balloon

c)

The balloon will cause the foil to have a positive charge

d)

The foil will cause the balloon to have a positive charge

4.

How can it be explained that someone's hair can stick to a balloon?

a)

There is static electricity.

b)

There is too much dust in the air.

c)

The person needs to wash his hair.

5.

Opposite charges _______________.

a)

attract

b)

repel

c)

nothing changes

6.

Like charges _______________.

a)

attract

b)

repel

c)

nothing changes

7.

The flow of electric charge in a circuit is called _______.

a)

Heat

b)

Sound

c)

Electric Current

d)

Magnetic

8.

What would best complete this circuit?

a)

A wire

b)

A switch

c)

A battery

d)

A light bulb

9.
Lightning is an example of _________.
a)
static electricity
b)
current electricity
c)
watts
d)
voltage
10.
Thicker wires have _______ resistance than thinner wires.
a)
more
b)
less
c)
the same
11.
Electric current is measured in ______.
a)
Watts
b)
Volts
c)
Amperes
12.
As the resistance in a circuit increases, the electric current __________.
a)
increases
b)
decreases
c)
stays the same
13.
Which formulas represents Ohm's law?
a)
V=IR
b)
R=IV
c)
I=RV
14.
What is the unit for resistance?
a)
Volts
b)
Amperes
c)
Ohms
15.
How many volts are in a circuit with a battery that has a resistance of 10 Ohms and a current of 2 Amps? 
a)
.5 Volts
b)
5 Volts
c)
20 Volts