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Unit 9 Review

Total questions: 15

Worksheet time: 11mins

Name
Class
Date
1.

The difference in electrical potential energy between two places is called..

a)

resistance

b)

friction

c)

induction

d)

voltage

2.

If 1200 J of work are required to carry a 65-C charge from one point to another, the potential difference between these two points is:

a)

18.46 V

b)

20,000 V

c)

0.08 V

d)

316.25 V

3.

The potential difference between two points is 100 V. If a particle with a charge of 2 C is moved within the electric potential, what is the magnitude of the Electric Potential Energy?

a)

200 J

b)

100 J

c)

50 J

d)

2 J

4.
Current is measured in....
a)
Amps 
b)
Volts
c)
Ohms
d)
Coulombs
5.

Ohms law states that current is...

a)

directly proportional to voltage

b)

inversely proportional to resistance

c)

Both options are correct

d)

none of the above

6.

Electric potential ____________ as distance increases.

a)

Increases

b)

Decreases

c)

Remains Constant

d)

Is 0

7.

The magnitude of electric potential is ______ at an infinite distance.

a)

0

b)

negative infinity

c)

positive infinity

d)

200

8.

What is the resistance if the current is 2A and the voltage is 10V?

a)

8 Ω

b)

20 Ω

c)

12 Ω

d)

5 Ω

9.

A 4000-Ω resistor is connected across a 220-V power source. What current will flow through the resistor?

a)

0.055 A

b)

1.8 A

c)

5.5 A

d)

18 A

10.

A 200-W light bulb is connected across a 100-V dc power supply. What current will flow through this bulb?

a)

0.90 A

b)

0.36 A

c)

0.60 A

d)

2.0 A

11.
The two types of current are...
a)
AC/DC
b)
Alternating Current
c)
Direct Current
d)
All of the above
12.

What characteristics impact resistance of a wire within a circuit?

a)

Thickness

b)

Material

c)

Length

d)

All of these

13.

What type of current is it showing in the image above in the voltage vs time graph?

a)

DC

b)

AC

c)

Rectified Current

d)

None of the above

14.
As a proton moves in the direction the electric field lines...
a)
it is moving from low potential to high potential and gaining electric potential energy.
b)
it is moving from low potential to high potential and losing electric potential energy.
c)
it is moving from high potential to low potential and gaining electric potential energy.
d)
it is moving from high potential to low potential and losing electric potential energy.
15.

The difference in electrical potential energy is called what?

a)

current

b)

electric power

c)

resistance

d)

voltage