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Worksheets

Voltage and Current in Circuits

Total questions: 19

Worksheet time: 25mins

Name
Class
Date
1.

Organize these options into the right categories

Categorize the following

Ohms

Volts

Voltage

Electron flow

How strongly electrical flow is resisted

Amperes

Energy drop per charge bw two points

Potential Difference
Current
Resistance
2.

Which cable can you remove without affecting the circuit?

3.

2A of current is flowing from the battery. Select the point/s in the circuit with 2A flowing.

4.

4A of current is flowing through the top light globe. Label the current at the points of this circuit.

5.

4A of current is flowing through the top light globe. Label the current at other points of this circuit.

6.

A 6V battery is connected. The left light globe uses 2V. Label the potential difference measured by a voltmeter placed in each location

7.
Which best describes a parallel circuit?
a)
Electricity flows along one pathway.
b)
The flow of electricity comes from one source. 
c)
Electricity flows along more than one pathway. 
d)
The flow of electricity comes from more than one source. 
8.
What is Resistance?
a)
The flow of electrons
b)
Electric potential difference
c)
A battery
d)
The ability to reduce the flow of electrons
9.

What would be the voltage at the power source?

a)

18V

b)

4.5V

c)

9V

d)

13.5V

10.

What would be the voltage at the power source?

a)

24V

b)

6V

c)

9V

d)

12V

11.

The current at the power source is 5A. What is the current in between the two globes?

a)

5

b)

10

c)

2.5

d)

15

12.

What is the current at the power source?

a)

6A

b)

12A

c)

24A

d)

18A

13.

How many of these ammeters are correctly set up?

a)

1

b)

3

c)

4

d)

5

e)

2

14.

This is the circuit symbol for ...

a)

a potential difference

b)

a battery

c)

an ammeter

d)

a voltmeter

15.

This is the circuit symbol for ...

a)

a battery

b)

a potential difference

c)

an ammeter

d)

a voltmeter

16.

Three circuits are shown below with varying numbers of light bulbs in series. The batteries and light bulbs are identical in every way. Which has the greatest current?

a)
b)
c)
d)

The current through all these is the same

17.

The diagram shows a parallel circuit. Which ammeter will have the same reading as A1?

a)

A2

b)

A3

c)

A4

d)

A2 and A4

18.

This circuit has a lamp and a buzzer connected in parallel. What is the voltage across the buzzer?

a)

1.5V

b)

3.0V

c)

0.75V

d)

4.5V

19.
What will happen if one light bulb is removed from this circuit?
a)
The other bulbs will go out.
b)
The other bulbs will stay on
c)
The other bulbs will get dimmer.
d)
The battery will become stronger.