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Chapter 6 - Electricity

Total questions: 43

Worksheet time: 22mins

Name
Class
Date
1.

The tendency for a material to oppose the flow of electrons is _____.

a)

current

b)

resistance

c)

conductor

d)

voltage

2.

Items with opposite charges _____ each other.

a)

attract

b)

repel

c)

move

d)

none of the above

3.

Clothes clinging together and lightning are examples of _____.

a)

current electricity

b)

circuit electricity

c)

alternating electricity

d)

static electricity

4.

Is the symbol for _____.

a)

Light bulb

b)

Voltage Source

c)

Battery

d)

Switch

5.

Is the symbol for _____.

a)

Light bulb

b)

Resistor

c)

Battery

d)

Switch

6.

A battery is a source of alternating current.

a)

True

b)

False

7.

Which of the following are examples of conductors?

a)

Copper

b)

Plastic

c)

Glass

d)

Aluminum foil

e)

Gold

8.

Which of the following are examples of insulators?

a)

Copper

b)

Plastic

c)

Glass

d)

Aluminum foil

e)

Pencil lead

9.

Electricity that changes direction as it flows is called _____.

a)

Alternating current (AC)

b)

Direct current (DC)

10.

The flow of electric charges is

a)

voltage

b)

electric current

c)

resistance

d)

electric power

11.
A closed path that electric current flows is a
a)

circuit

b)

wire

c)

track

d)

hallway

12.
How is electricity generated in a battery?
a)
through a solar reaction
b)
through kinetic energy
c)
by a chemical reaction
d)
by the flow of particles
13.
If an object has the same number of positive and negative charges, its electrical charge is...
a)
positive
b)
negative
c)
neutral or no charge
d)
opposite
14.
What charge does a proton have?
a)
negative (-)
b)
positive (+)
c)
neutral or no charge (0)
15.
If a substance has a higher number of electrons than protons on its surface, what type of charge does it have?
a)

A positive charge.

b)

A negative charge.

c)

A neutral charge

d)

No charge at all

16.
If you rub a glass rod with a piece of silk, the rod becomes positively charged. This means that
a)

friction destroyed electrons in the rod.

b)

the silk has become negatively charged.

c)

protons have moved to the rod.

d)

glass attracts more protons.

17.

The amount of "push" available to move electrons is _____

a)

Current

b)

Resistance

c)

Voltage

d)

Static Electricity

18.

If you add another bulb in parallel,_____

a)

The bulbs get brighter

b)

The bulbs get dimmer

c)

The bulb brightness stays the same

d)

All the bulbs will go out

19.

If the top bulb goes out,

a)

All the bulbs go out

b)

The other bulbs get dimmer

c)

There is no effect on the other bulbs

d)

The other bulbs get brighter

20.

In a parallel circuit

a)

All devices receive the same current

b)

There are 2 or more paths for current to flow

c)

All devices always go on and off together

d)

Each device operates with a different voltage

21.

Ω\Omega  is for 

a)

volts 

b)

current

c)

resistance

22.

Calculate the total current of the circuit

a)

2A

b)

2.5A

c)

2V

d)

2.5V

23.

Calculate the total current of the circuit

a)

2 Ω\Omega

b)

2 A

c)

2 V

d)

2.1 A

24.
What is the Voltage of a circuit that has a resistance of 5 Ω and a current of 2 A?
a)

25 V

b)

10 V

c)

2.5 V

d)

0.4 V

25.

The battery provides 6 V and the light bulbs each have a resistance of 2 Ohms. What is the current in the circuit

a)

3 A

b)

 9 A

c)

 6 A

d)

12 A

26.

Look at this Christmas tree lights. Are they connected in series or parallel?

a)

Series

b)

Parallel

c)

Both

d)

I am not sure

27.
The rate at which energy is converted from one form to another
a)

power

b)

voltage

c)

current

d)

none

28.
What is the voltage difference in a circuit that uses 2420 W of power if 11 A of current flows into the circuit?
a)
220 v
b)
0.004 v
c)
2431 v
d)
532400 v
29.

How much does it cost to light a 100 W light bulb for 72 hours if the price of electrical energy is $0.20/kWh?

a)

$14.40

b)

$0.14

c)

$1.44

d)

$2.00

30.
The current in an appliance is 3 A and the voltage difference is 120 V. How much power is being supplied to the appliance?
a)

10000 W

b)

220 W

c)

420 W

d)

360 W

31.

What does the electronic schematic symbol shown represent?

a)

Wire

b)

Resistor

c)

Battery

d)

Switch

32.

A flashlight battery is an example of what type of battery?

a)

wet cell

b)

dry cell

c)

solar cell

d)

electroscope

33.

Lightning is ______. 

a)

a buildup of neutrons

b)

a low voltage electric current

c)

harmless 

d)

a very large discharge of static electricity

34.

A method of charging that involves an object being charged while being within the electric field of another.

a)

charge by induction

b)

charge by contact

c)

direct current

d)

electric power

35.

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

a)

12 V

b)

4/3 V

c)

3/4 V

36.

Will the light bulbs light up in this image?

a)

Yes, both of them will

b)

No, neither of them will

c)

Yes, but only the one on the left

37.

The following image respresents a

a)

LED

b)

Series circuit

c)

Parallel circuit

38.

The relationship between voltage, current, and resistance is described by....

a)

Bohr's Law

b)

Ohm's Law

c)

Kirkchoff's Law

d)

Lorentz' Law

39.

If light bulb A burns out, what will happen?

a)

light bulb B will still work but C will not

b)

light bulb C will still work but B will not

c)

light bulbs B and C will continue to work

40.

If light bulb A burns out, what will happen?

a)

none of the lights will work

b)

light bulbs B and C will continue to work

c)

light bulb B will work, but C will not

41.

Will the balloons ATTRACT or REPEL each other?

a)
b)
42.

Why is the balloon attracted to the cat?

a)

The balloon and the cat's hair have opposite electric charges

b)

The cat sat in glue

c)

The balloon is in love with the cat

d)

The balloon and the cat's hair have the same electric charges

43.

When negative charges on a cloud cause positive charges to build up on the ground, what may happen?

a)
b)

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