Free Printable Electricity CP-1

Worksheets

Electricity CP-1

Total questions: 21

Worksheet time: 11mins

Name

Class

Date

A parallel circuit has more than one path for electricity to flow

true

false

Items that have opposite charges do what?

attract

repel

nothing changes

What type of circuit is pictured?

series

parallel

How do you calculate voltage?

Current X Resistance

Resistance ÷ Current

Current ÷ Resistance

Measure it with a ruler

What is the unit for resistance?

Volts

Amperes

Ohms $\Omega$

What resistance is needed to cause a 20A current flow because of a 100V battery?

0.2 $\Omega$

2000 $\Omega$

120 $\Omega$

5 $\Omega$

Lightning is an example of _________.

static electricity

current electricity

watts

voltage

Which formula represents Ohm's law?

V=IR

R=IV

I=RV

The unit for current is the

Volt

Ohm $\Omega$

Electron

Amp

10.

Electricity is the flow of _________.

protons

neutrons

electrons

11.

An object becomes charged when the atoms in the object gain or lose

electrons

protons

neutrons

all of the above

12.

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.

13.

If you bring a charged object near an electrically neutral surface without allowing the object to touch the surface, the charges in the surface are rearranged by

friction.

convection.

induction.

conduction.

14.

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

reduction

induction

conduction

friction

15.

Two objects with LIKE static charges will

attract each other

even out in the end

repel each other

cause a spark

16.

If the voltage across a circuit of constant resistance is doubled, the power dissipated by that circuit will

be four times as large.

be two times as large.

decrease to one-half the original power.

decrease to one-fourth the original power.

17.

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

0.90 A

0.36 A

0.60 A

2.0 A

18.

What happens to the force between two charged objects when you double the distance between them?

it doubles

it is cut in half

it quadruples

it is cut by 1/4

19.

If one of the charges doubles, what happens to the force?

it doubles

it gets cut in half

it quadruples

it is cut by 1/4

20.

What is the unit for electrostatic charge?

Coulombs

Newtons

Meters

Joules

21.

How are you feeling about this test tomoorw?

Awesome

Pretty good

A little confused

I need to study more

Clueless

Reset

Electricity CP-1

Total questions: 21

Worksheet time: 11mins

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