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Current Electricity

Total questions: 17

Worksheet time: 51mins

Name
Class
Date
1.

In a _____ circuit, if one light bulb goes out, all light bulbs will go out.

a)

parallel

b)

series

c)

partial

d)

closed

2.

The rate of flow of electrons in a conductor is referred to as...

a)

series circuit

b)

battery voltage

c)

electric current

d)

conduction electrons

3.

A material that reduces current flow in a circuit.

a)

Current

b)

Voltage

c)

Ampere

d)

Resistor

4.

Select all the representations of Ohm's Law.

a)

V = IR

b)

I = V/R

c)

Current = Battery Voltage

/Resistance

d)

I = R/V

5.

The symbol for resistance is ...

a)

Ω\Omega  

b)

θ\theta  

c)

A

d)

V

6.

The symbol for current is _____ and the unit is _______.

a)

C, Amps

b)

I, Volts

c)

C, Ohms

d)

I, Amps

7.

Conduction electrons will move the fastest in the ______ ______ because there is no resistance.

(a)  

8.

The more light bulbs in a circuit, the (a)   the electrons will move around it.

9.

If you double the voltage, then, according to Ohm's Law, the current will be (a)   .

10.

If you double the resistance, then, according to Ohm's Law, the current will be (a)   .

11.

The thinner the wire, the (a)   the current flows.

12.

The graph shows current and voltage are _____.

a)

both positive

b)

directly proportional

c)

inversely proportional

d)

decreasing

13.

What is the total resistance in this series circuit?

a)

10 Ohms

b)

25 Volts

c)

30 Volts

d)

30 Ohms

14.
Which subatomic particles have a positive charge?
a)
neutrons
b)
electrons
c)
protons
15.

How many volts are in a circuit with a light bulb that has a resistance of 10 Ohms and a current of 2 Amps? 

a)
.5 Volts
b)
5 Volts
c)
20 Volts
16.

A light bulb has a resistance of 7Ω with a potential difference of 21V across it. What is the current flowing through the light bulb?

a)

147 A

b)

28 A

c)

3A

d)

30A

17.

Calculate the voltage of the battery using Ohm's Law (V = IR)

a)

24.9 Volts

b)

24.9 Ohms

c)

30 Ohms

d)

30 Volts