Free Printable PS Unit 5 Quiz

Worksheets

PS Unit 5 Quiz

Total questions: 30

Worksheet time: 1hrs 3mins

Name

Class

Date

During a physics lab, a plastic strip was rubbed with cotton and became positively charged. The correct explanation for why the plastic strip becomes positively charged is that ...

the plastic strip acquired extra protons from the cotton.

the plastic strip acquired extra protons from the charging process

protons were created as the result of the charging process

the plastic strip lost electrons to the cotton during the charging process

A glass rod becomes positively charged when it is rubbed with silk. This net positive charge accumulates because the glass rod

gains electrons

loses electrons

gains protons

loses protons

Why the positive and negative charges show the above result?

Same charges attract to each other and different charges repel to each other

Same charges repel to each other and diffrerent charges attract to each other

The line around the negative charges shows the

Electrical forces of the positive charge

Electromagnetic forces of the positive charge

Electrical forces of the negative charge

Two like charges:

neutralize each other.

repel each other.

must be neutrons.

attract each other.

The charge of an electron is:

Positive.

Negative.

Electrons have no charge

Plastic is an example of _______.

an insulator

a conductor

A metal spoon is an example of _____.

a conductor

an insulator

What types of charges attract?

Positive and Positive

Positive and Neutral

Negative and Neutral

Positive and Negative

10.

Which of the following is an insulator?

aluminum

iron

glass

copper

11.

Which of the following statements best describes an electrical conductor?

does not allow electricity to pass through it

slows the flow of electricity through it

allows the flow of electricity through it

12.

All of the following are conductors except _______.

metal spoon

wire

iron nail

plastic spoon

13.

what is a Lightning conductor ?

it is made of metal

A pointy metal rod which sends all charge accumulated on the building to the ground.

its one end is buried in the ground

all of the above

14.

wood is a _____?

conductor

insulator

15.

current is measured in _________

amperes

ohms

volts

watts

16.

Direction of electrons always go from

positive to negative

negative to positive

positive to positive

negative to negative

17.

The rate of charge movement in a wire is called

an ohm

watt

a current

kilowatts

18.

$\Omega$ is the symbol for

watts

ohms

current

electrons

19.

V = IR is called the ______ law equation

resistance

electron

ohm's

current

20.

____________ conduct electricity under certain conditions

conductors

semiconductors

insulators

21.

The __________ difference is the change in the electrical potential energy of a charged particle divided by its change

resistance

voltage

kinetic

potential

22.

The part of an atom that has a positive charge is called

electron

proton

neutron

23.

Electrical force depends on _______ and ________

charge and wattage

distance and voltage

charge and distance

distance and currents

24.

True of false: Electric field lines never cross one another

true

false

25.

This is the symbol for

a voltmeter

a battery

a switch

a resistor

26.

This is a symbol for

an ammeter

a closed switch

an open switch

a fuse

27.

This is an image of

an open circuit

a closed circuit

a series circuit

a parallel circuit

28.

True or false: High electrical currents can overload your circuits and cause fires.

True

False

29.

What can prevent a circuit overload in your house?

voltmeter

ammeter