Free Printable Electricity and Circuits

Worksheets

Electricity and Circuits

Total questions: 17

Worksheet time: 51mins

Name

Class

Date

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

friction destroyed electrons in the rod.

the silk has become negatively charged.

protons have moved to the rod.

glass attracts more protons.

Charging by ____ occurs when electrons are transferred from one object to another by direct contact.

reduction

induction

conduction

friction

Force between two bodies having charges 5.0 x 10² μC and 1.0 x 10² μC separated by distance of 0.50 m in air is

1800 N

1.0 x 10³ N

2200 N

3.0 x 10² N

As shown in the diagram below, a neutral pith ball suspended on a string is attracted to a positively charged rod.

During contact with the rod, the pith ball

loses electrons

gains electrons

loses protons

gains protons

Which diagram best represents the charge distribution on a neutral electroscope when a negatively charged rod is held near it?

Two charges separated by a distance of 1 meter exert a 20-N force on each other. If the charges are pulled to a 2 meter separation distance, the force on each charge will be

10 N

5 N

2.5 N

40 N

The picture shows an electrical circuit. This circuit is a series circuit because:

It has 3 light bulbs.

The same current flows through all three light bulbs.

It uses a single battery.

The electrical current is divided between the three light bulbs.

What is the total resistance (RT) across this circuit?

3 kΩ

10 kΩ

13 kΩ

18 kΩ

In a parallel circuit which of the following is the same value throughout the circuit?

Voltage

Current

Resistance

Charge

10.

Which resistor in a parallel circuit gets the most voltage?

the largest resistor

the smallest resistor

they all get the same voltage

11.

In the circuit below, describe the voltage in bulbs A and B. All bulbs are identical.

A and B have the same voltage.

It depends on which one has more resistance.

12.

This circuit has a 24 volt battery and the resistor is 8 ohms. How many amps are running through the circuit?

3 Amps

192 Amps

2 Amps

4 Amps

13.

Which resistor has a resistance closest to 2 ohms based on the graph shown?

14.

What do you look for on the graph to determine the resistance of each wire?

steepest slope = highest resistance

lowest slope = highest resistance

highest y intercept = greatest resistance

highest x value = greatest resistance

15.

If a 50 watt lightbulb runs for two days straight, how much does it cost if the electric company charges 11 cents per kwh?

26.4 cents

2.64 dollars

218 cents

21.8 dollars

16.

If a 50 watt lightbulb runs for two days straight, how much energy does it use in joules?

8.64 x 10^6 J

1.44 x 10^5 J

3.52 x 10^5 J

5.98 x 10^6 J

17.

What is the charge of an electron?

+1 C

-1 C

1.6 x 10^-19 C

1.6 x 10^19 C

Reset

Electricity and Circuits

Total questions: 17

Worksheet time: 51mins

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