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PS CH 7 - Electricity Test Review

Total questions: 57

Worksheet time: 38mins

Name
Class
Date
1.
What types of charges attract?
a)
Positive and Positive
b)
Positive and Neutral
c)
Negative and Neutral
d)
Positive and Negative
2.
Electric charges that are alike _______ each other.
a)
Attract
b)
Repel
3.
Electric charges that are different _______ each other.
a)
Attract
b)
Repel
4.
What charge does a proton have?
a)
negative (-)
b)
positive (+)
c)
neutral or no charge (0)
5.
What charge does an electron have?
a)
negative (-)
b)
positive (+)
c)
neutral or no charge (0)
6.
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
7.
If the two charges represented in the figure were brought near each other, they would
a)
attract each other.
b)
repel each other.
c)
cause static discharge.
d)
have no affect on each other
8.
What size resistor would produce a 3 Amp current flow with a 12 Volt battery
a)
1 Ohm
b)
3 Ohms
c)
4 Ohms
d)
12 Ohms
9.
How many Volts would it take to push 1 Amp through a resistance of 1 Ohm
a)
10 volts
b)
1 volt
c)
48 volts
d)
5 volts
10.
What size resistor would produce a current flow of 5 Amps with a battery voltage of 12.6 volts
a)
60 Ohms
b)
2.52 Ohms
c)
1.71 ohms
d)
5.04 Ohms
11.
This is an example of a _______ circuit
a)
open
b)
series
c)
parallel
d)
square
12.
This is an example of a ______ circuit
a)
Series
b)
Parallel
c)
Open
d)
Dihexihedral
13.
What kind of circuit is this?
a)
series
b)
parallel
14.
When there is only one path for electrons to move through it is called a _____. When one light goes out, they all go out. 
a)
closed circuit
b)
parallel circuit
c)
series circuit
d)
open circuit
15.
What type of circuit is show in the image?
a)
Series Circuit
b)
Parallel Circuit
16.
What voltage is needed to cause a 5A current flow through a 2Ω resistor?
a)
10V
b)
2.5V
c)
7V
d)
0.4V
17.
What voltage is needed to cause a 2A current flow through a 10Ω resistor?
a)
5V
b)
0.2V
c)
20V
d)
200V
18.

What voltage is needed to cause a 50A current flow through a 10Ω resistor?

a)

15V

b)

500V

c)

500 kV

d)

0.2V

19.
If the Voltage is increased and the resistance stays the same, Current will
a)
Increase
b)
Decrease
c)
Stay the same
d)
X
20.

A voltmeter is used

a)

to measure current

b)

in series with the circuit

c)

in parallel with the circuit

d)

to measure charge

21.

unit of resistance

a)

ohm

b)

ampere

c)

volt

d)

joule

22.
This circuit has a 24 volt battery and the resistor is 8 ohms. How many amps are running through the circuit?
a)
3 Amps
b)
192 Amps
c)
2 Amps
d)
4 Amps
23.

With the engine running the charging system produces 14.5 Volts what would the current flow be if a resistance of 6 Ohms was present

a)

2.41 A

b)

2.52 A

c)

2.1 A

d)

0.3333 A

24.
What is current measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
25.

What is a safety device that consists of a small wire that melts when too much current passes over it?

a)

Resistance

b)

Dry Cell

c)

Fuse

d)

Circuit Breaker

26.

This is when a material allows electricity to flow through it, but converts a small amount into other types of energy.

a)

Resistance

b)

Dry Cell

c)

Fuse

d)

Circuit Breaker

27.

A safety device that consists of a small piece of metal that changes shape (bends) when too much current passes over it.

a)

Resistor

b)

Battery

c)

Fuse

d)

Circuit Breaker

28.

This type of circuit does not allow for the flow of electricity.

a)

Phase Circuit

b)

Parallel Circuit

c)

Series Circuit

d)

Open Circuit

29.

A circuit that has two or more branches is called what?

a)

Phase Circuit

b)

Parallel Circuit

c)

Series Circuit

d)

Open Circuit

30.

Electric Charge that has accumulated on an object is called what?

a)

Current Electricty

b)

Past Electricity

c)

Alternating Current (AC)

d)

Static Electricity

31.

What does a kWh measure?

a)

Electrical Power

b)

Voltage

c)

Electrical Energy

d)

Resistance

32.

What is the device that consists of a conductive probe attached to two metal leaves that separate when a charge is present?

a)

A leafoiscope

b)

Voltmeter

c)

Electric Tester

d)

Electroscope

33.

If the reading on a meter in December was 2345 kWh and the reading in January was 3456 kWh, how much energy was used in the one month period between the readings?

a)

1,111 kWh

b)

33,330 kWh

c)

13,332 kWh

d)

92.6 kWh

34.

If electricity costs $.10 per kWh, how much would 555 kWh cost?

a)

$555.00

b)

$55.50

c)

$5.55

d)

$5,550

35.

An object becomes positively charged when it ___________. (Charges)

a)

Loses Electrons

b)

Gains Electrons

c)

Loses Protons

d)

Gains Neutrons

36.

A device that can detect if a charge is present, but cannot determine whether it is positive or negative. (Charges)

a)

Van DeGraph Generator

b)

Electrolysis Gel

c)

Electroscope

d)

Geiger counter

37.

How do two negative charges react when they are brought near each other? (Charges)

a)

They don't react

b)

They repel each other

c)

They will both move in the same direction at the same time (their both negative)

d)

They are drawn towards each other

38.

Which of the following is an insulator?

a)

Copper

b)

Plastic

c)

Silver

d)

Salt Water

39.

Which of the following is a good conductor?

a)

Distilled Water

b)

Aluminum

c)

Dry Air

d)

Rubber

40.

Would people be considered an insulator or a conductor?

a)

Insulator

b)

Conductor

c)

Neither

41.

Why are Van DeGraph generators made out of conductive materials?

a)

Conductive materials allow the negative charges to flow out and the static charge to build up

b)

Conductive materials tend to be much cheaper than insulators

c)

When plugging it in, if it had too much insulation it might catch on fire

d)

It looks cooler when its shiny and all conductors are shiny

42.

This is the unit for Electrical Power as measured in the United States.

a)

Voltage Difference

b)

Calories

c)

Kilowatts

d)

Joules

43.

The process of connecting an object with the Earth via a conductor is called what? (Conductor/Insulator)

a)

Charging

b)

Draining

c)

Grounding

d)

Induction

e)

Fusing

44.

What is essential in order for lightning to form?

a)

Electrified Birds

b)

Ionized Gasses in the atmosphere

c)

Charged Salt Water in clouds

d)

Thunder

e)

Strong upward movement in clouds called "updrafts"

45.

The process of giving an object a partial charge by bringing it near another charged object.

a)

Static Electricity

b)

Law of Conservation of Charge

c)

Conductor

d)

Charging by Contact

e)

Charging by Induction

46.

Material through which electrons can move through easily.

a)

Static Electricity

b)

Law of Conservation of Charge

c)

Conductor

d)

Insulator

47.

Electricity generated when an uneven number of charges are present in or on an object.

a)

Static Electricity

b)

Law of Conservation of Charge

c)

Charging by Contact

d)

Charging by Induction

48.

Process of transferring charge between objects by touching.

a)

Conductor

b)

Insulator

c)

Charging by Contact

d)

Charging by Induction

49.

Charge can be transferred from one object to another but cannot be created or destroyed.

a)

Static Electricity

b)

Law of Conservation of Charge

c)

Charging by Contact

d)

Charging by Induction

50.
The potential difference that causes charges to move in a circuit is ___.
a)
voltage
b)
resistance
c)
current
d)
electric discharge
51.
An example of a voltage source is a _____.
a)
voltmeter
b)
battery
c)
resistance
d)
switch
52.
a)
Series circuit
b)
Incomplete circuit
c)
Parallel circuit
d)
Power source
53.
When there are several path for the current to follow
a)
Pathway
b)
Conductor
c)
Series circuit
d)
Parallel circuit
54.
The flow of electricity through a conductor
a)
Battery
b)
Current
c)
Static electricity
d)
Switch
55.
a)
Power source
b)
Closed circuit
c)
Insulator
d)
Open circuit
56.
a)
Parallel circuit
b)
Series circuit
c)
Incomplete circuit
d)
Switch
57.
Series circuit
a)
A material that allows electricity to go through it
b)
Only one pathway for the electricity to flow
c)
A device which provides energy for a circuit
d)
More than one path for the electricity to flow

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