Quiz about Electricity Grade 9

Question 1

What is the symbol for current?

Accepted Answer

I

Answer

C

Answer

V

Answer

R

Question 2

Which of these is NOT one of the laws of charges?

Accepted Answer

Unlike charges repel

Answer

Like charges repel

Answer

Opposite charges attract

Answer

Charged objects attract neutral objects

Question 3

Which of the following is an insulator?

Accepted Answer

glass

Answer

aluminum

Answer

iron

Answer

copper

Question 4

Which of the following statements best describes an electrical conductor?

Accepted Answer

allows the flow of electricity through it

Answer

does not allow electricity to pass through it

Answer

slows the flow of electricity through it

Question 5

What is the symbol for a resistor in a circuit?

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

Question 6

Which of the following is an example of a conductor in a circuit?

Accepted Answer

wires

Answer

light bulb

Answer

battery

Answer

switch

Question 7

Which of the following is an example of a load in a circuit?

Accepted Answer

light bulb

Answer

battery

Answer

switch

Answer

wires

Question 8

What is the symbol for a switch in a circuit?

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 9

What is the correct symbol for a light bulb?

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 10

A series circuit:

Accepted Answer

has one path for electricity

Answer

has several paths for electricity

Question 11

A parallel circuit:

Accepted Answer

has several paths for electricity

Answer

has one path for electricity

Question 12

Electricity is the movement of _____.

Accepted Answer

electrons

Answer

circuit

Answer

molecules

Answer

atoms

Question 13

This kind of electricity is formed by the build up of positive or negative charges on a surface.

Accepted Answer

static electricity

Answer

magnetism

Answer

conductors

Answer

current electricity

Question 14

What unit is used to measure resistance?

Accepted Answer

Ohms

Answer

Omega

Answer

Volts

Answer

Amps

Question 15

What unit is used to measure current?

Accepted Answer

Amps

Answer

Ohms

Answer

Omega

Answer

Volts

Question 16

What is Resistance?

Accepted Answer

The ability to reduce the flow of electrons

Answer

The flow of electrons

Answer

Electric potential difference

Answer

A battery

Question 17

The greater the resistance

Accepted Answer

the lower the current

Answer

the higher the current

Answer

current stays the same

Question 18

In a circuit, electrons flow from

Accepted Answer

negative to positive

Answer

positive yo negative

Question 19

Lights strung together in a line along a circuit would be an example of a _____ circuit.

Accepted Answer

series

Answer

short

Answer

parallel

Answer

resistor

Question 20

How is a conductor different from an insulator?

Accepted Answer

In a conductor, electric current can flow freely; in an insulator, it cannot flow freely

Answer

In a conductor, electric current cannot flow freely; in an insulator, it can flow freely

Answer

Conductors have magnetic fields; insulators do not have magnetic fields

Answer

Conductors do not have magnetic fields; insulators do have magnetic fields

Question 21

What is a circuit?

Accepted Answer

an unbroken loop of conductive material through which electrons flow continuously

Answer

the same as an insulator

Answer

a broken loop of conductive material through which electrons flow continuously

Question 22

How does electricity flow?

Accepted Answer

from high potential to low potential

Answer

from conductor to insulator

Answer

from series circuit to parallel circuit

Answer

from low potential to high potential

Question 23

Where is the resistor located on this diagram?

Accepted Answer

D

Answer

A

Answer

C

Answer

B

Question 24

The "I" in V = IR stands for...

Accepted Answer

Amperage

Answer

Voltage

Answer

Resistance

Answer

Conductivity

Question 25

Pure water with no dissolved particles in it has _________ conductivity

Accepted Answer

Low

Answer

High

Answer

Average

Question 26

The potential difference across two points is generally referred to as...

Accepted Answer

Voltage

Answer

Micrometer

Answer

Amperage

Answer

Resistance

Question 27

Things that have almost NO resistance to electron flow are generally referred to as:

Accepted Answer

Superconductors

Answer

Bad conductors of electricty

Answer

Good conductors of electricty

Answer

Transistors

Question 28

Capacitance is the ability of an object or material to...

Accepted Answer

Store electrical charge

Answer

Resistant electricity flow

Answer

Transmit electricity

Answer

Generate electricity

Question 29

The 2 symbols represent (more than one answer)

Accepted Answer

bulb

Accepted Answer

resistor

Answer

Fuse

Answer

ammeter

Question 30

When an object becomes polarised it means that one side becomes completely negatively charged while the other becomes completely positively charged.

Accepted Answer

True

Answer

False

Question 31

The first Incandescent Lamp was invented by

Accepted Answer

Humphry Davy

Answer

Thomas Edison

Answer

Amelita Alcorano

Answer

Nicola Tesla

Question 32

To cover open wires electricians may use

Accepted Answer

Electrical Tape

Answer

Scotch tape

Answer

Double-sided tape

Answer

Paper tape

Question 33

Resistance is measured in what unit?

Accepted Answer

ohms

Answer

amps

Answer

watts

Answer

volts

Question 34

Current is measured in what unit?

Accepted Answer

amps

Answer

ohms

Answer

volts

Answer

watts

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