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Electricity and Magnetism

Total questions: 38

Worksheet time: 19mins

Name
Class
Date
1.

A series circuit will continue to work if one of the light bulbs is unscrewed.

a)

true

b)

false

2.

If two balloons have the same charge the balloons will...

a)

repel

b)

attract

c)

stay neutral

3.

An object with equal amounts of positive and negative charge is electrically....

a)

neutral

b)

charged

c)

positive

d)

negative

4.

All of these are examples of conductors except...

a)

wooden ruler

b)

paper clip

c)

metal key

d)

copper penny

5.

All of these are examples of insulators except....

a)

plastic fork

b)

glass marble

c)

rubber band

d)

aluminum can

6.

These magnets will...

a)

attract

b)

repel

c)

nothing will happen

7.

This is an example of what type of circuit?

a)

simple

b)

series

c)

parallel

8.
What is the name of a path that has only one way for the current to flow?
a)
current electricity
b)
static electricity 
c)
battery
d)
series circuit
9.
What is a stream of electrons moving through a copper wire called?
a)
current electricity
b)
light bulb
c)
series circuit
d)
motor
10.

Which of the following principles explains how an electric motor works?

a)

Magnetic force

b)

Magnetism

c)

Electrolysis

d)

Electromagnetism

11.

What do we call a device that converts electricity into mechanical movement?

a)

electric charge

b)

electric motor

c)

electric current

d)

electric plasma

12.

What do you call a device that converts mechanical movement into electricity?

a)

electric field

b)

electric motor

c)

electric generator

d)

electric plasma

13.
Generators are devices that convert _____ energy into _____ energy.
a)
chemical; mechanical
b)
mechanical; electrical
c)
electrical; mechanical
d)
potential; kinetic
14.
Electric motors are devices that convert _____ energy into  _____ energy.
a)
electrical; mechanical
b)
mechanical; electrical
c)
chemical; potential
d)
mechanical; kinetic
15.
When plugged into an outlet, the clock lights up to show the time.  What kind of energy transformation is this?
a)
chemical to light
b)
mechanical to chemical
c)
electrical to mechanical
d)
electrical to light
16.

What is the unit of measurement for resistance?

a)

Voltage

b)

Ampere

c)

Watts

d)

Ohms

17.
How does resistance affect current?
a)
less resistance - less current
b)
more resistance - less current
c)
more resistance - more current
d)
resistance does not affect current
18.
Static electricity is:
a)
electricity flowing in a wire
b)
the buildup of electric charges on an object
c)
when protons move between objects
19.
Which is an example of static dischage?
a)
a motor
b)
lightning
c)
thunder
d)
insulators
20.

What unit is used to measure current?

a)

Ohms

b)

Omega

c)

Volts

d)

Amps

21.

What is the current in a circuit with 6 ohms of resistance and a battery containing 24 Volts?

a)

1/4 A

b)

144 A

c)

4 A

d)

0.4 A

22.

What is the resistance of a lightbulb that experiences 9 Volts and 3 amps of current?

a)

1/3 ohms

b)

3 ohms

c)

27 ohms

d)

9 ohms

23.

What is the voltage of a circuit with 4 ohms of resistance and 3 amps of current?

a)

12 V

b)

21 V

c)

4/3 V

d)

3/4 V

24.

The current in an electric clothes dryer is 15 A when it is plugged into a 240 volt outlet. How much power does the clothes dryer use?

a)

16 watts

b)

0.07 watts

c)

3600 watts

d)

12 watts

25.

The part of the battery that contains ions. Often made from salts or acids...

a)

Electrodes

b)

Electrolyte

26.

Batteries operate on ____ current.

a)

AC

b)

DC

27.

Poor conductors of electricity and heat are called...

a)

Conductors

b)

Insulators

28.

Electricity is the movement of...

a)

Electrons

b)

Protons

c)

Neutrons

29.

The anode side of the battery contains what charges?

a)

Positive

b)

Negative

c)

None

30.

The cathode side of the battery contains what charges?

a)

Positive

b)

Negative

c)

None

31.
What is the barrier between the Anode and Cathode called?
a)
Electron
b)
Election
c)
Electrolyte
d)
Chuck norris
32.
What unit of measurement do we use to measure electrical potential?
a)
Watts
b)
Volts
c)
Amps
d)
Ohms
33.
Which way do electron flow?
a)
Positive to negative
b)
Negative to positive
c)
Negative to Negative
d)
Positive to Positive
34.

the energy stored in chemical compounds is called

a)

chemical energy

b)

thermal energy

c)

potential energy

35.

How does the diameter of a wire affect its resistance?

a)

Thinner Wire = More Resistance

b)

Thicker Wire = More Resistance

c)

The material the wire is made out of is the only thing that affects resistance

d)

The diameter doesn't matter, just the length

36.

How does the length of a wire affect its resistance?

a)

Longer wire = more resistance

b)

Shorter wire = more resistance

c)

The material the wire is made of is the only thing that affects resistance

d)

The length doesn't affect the resistance, just the diameter of the wire

37.

Primary cells can be recharged

a)

True

b)

False

38.

Wet Cells have liquid electrolyte

a)

True

b)

False

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