Quiz about Sci 9 Unit D 1.0 Electricity, Safety, Cells

Question 1

The build up of charges on an object is called

Accepted Answer

static electricity

Answer

current electricity

Answer

chemical electricity

Question 2

What kind of electricity flows through circuits?

Accepted Answer

current electricity

Answer

static electricity

Question 3

What do we call the path through which electricity flows?

Accepted Answer

circuit

Answer

switch

Answer

wave

Answer

load

Question 4

Electricity is the movement of _____.

Accepted Answer

electrons

Answer

protons

Answer

molecules

Answer

atoms

Question 5

This type of material does not allow electricity to flow through it.

Accepted Answer

Insulator

Answer

Conductor

Question 6

This material allows electric current to flow easily through it.

Accepted Answer

Conductor

Answer

Insulator

Question 7

This material allows electric current to flow easily through it.

Accepted Answer

copper

Answer

wool

Answer

rubber

Answer

cotton

Question 8

Which subatomic particles 'flow' through a conductor?

Accepted Answer

Electrons

Answer

Protons

Answer

Neutrons

Answer

Atoms

Question 9

Voltage is measured in __.

Accepted Answer

volts

Answer

watts

Answer

amperes

Question 10

Current is measured in....

Accepted Answer

Amperes

Answer

Volts

Question 11

This term refers to the amount of electrons flowing through a substance.

Accepted Answer

Current

Answer

Voltage

Question 12

Which atomic charges attract?

Accepted Answer

Positive and Negative

Answer

Positive and Positive

Answer

Negative and Negative

Answer

Negative and Neutral

Question 13

Electric charges that are 'alike' will _______ each other.

Accepted Answer

Repel

Answer

Attract

Question 14

Electric charges that are opposite_______ each other.

Accepted Answer

Attract

Answer

Repel

Question 15

What charge does an electron have?

Accepted Answer

negative (-)

Answer

positive (+)

Answer

neutral or no charge (0)

Question 16

If an object has a higher number of electrons than protons, what type of charge does it have?

Accepted Answer

A negative charge.

Answer

A positive charge.

Answer

A neutral charge

Answer

No charge at all

Question 17

The transfer of what type of atomic particle is responsible for the static charges on objects?

Accepted Answer

electrons

Answer

neutrons

Answer

protons

Answer

none of these

Question 18

An object that is positively charged contains an excess of:

Accepted Answer

protons

Answer

neutrons

Answer

electrons

Answer

positrons

Question 19

The liquid in a wet cell that allows electrons to move from one material to another is called...

Accepted Answer

Electrolyte

Answer

Terminal

Answer

Paste

Answer

Electrode

Question 20

a type of cell that contains solid or 'pastelike' electrolyte:

Accepted Answer

Dry Cell

Answer

Wet Cell

Answer

Thermocell

Answer

Electrocell

Question 21

Materials that tightly hold on to electrons are considered

Accepted Answer

Good insulators

Answer

Good conductors

Question 22

Materials that easily lose or accept electrons are considered

Accepted Answer

Good conductors

Answer

Good insulators

Question 23

If an object has an equal number of protons and electrons, what type of charge does it have?

Accepted Answer

neutral

Answer

positive

Answer

negative

Question 24

2 different elements that lose or gain electrons in an electrochemical cell:

Accepted Answer

electrodes

Answer

wet cells

Answer

dry cells

Answer

electrolytes

Question 25

In the figure shown what is the load?

Accepted Answer

the light bulb

Answer

the wires

Answer

the battery

Answer

the electrons

Question 26

The volt is used to measure the rate at which electrical current flows

Accepted Answer

False

Answer

True

Question 27

Circuit breakers have a metal strip that melts if the circuit is overloaded.

Accepted Answer

False

Answer

True

Question 28

When you are caught in a lightning storm, it is a good idea to take shelter under a tree.

Accepted Answer

False

Answer

True

Question 29

What is the name of the process of passing electricity through water to separate it into its elements?

Accepted Answer

electrolysis

Answer

electrorefining

Answer

electroplating

Answer

electrochemistry

Question 30

In the figure shown below, the electrode is the acid

Accepted Answer

False

Answer

True

Question 31

Which unit is used is used to measure how much electrical energy an electron carries in an electric circuit?

Accepted Answer

Volt

Answer

Ampere

Question 32

You come across a truck with a power line downed over the hood. The driver is still sitting inside. How would you instruct them to get out of the vehicle if the vehcle was on fire?

Accepted Answer

Tell them to jump clear of the vehicle all in one motion

Answer

You should reach inside and help them get out

Answer

Instruct them to slowly get out of the vehicle

Answer

You would carefully remove the powerline so they can get out.

Question 33

When a circuit contains too many loads or electrical devices it is considered...

Accepted Answer

overloaded

Answer

messy

Answer

completely safe

Question 34

This device is a _____

Accepted Answer

fuse

Answer

circuit breaker

Answer

cell

Question 35

The image is showing a....

Accepted Answer

short circuit

Answer

overloaded circuit

Answer

open circuit

Question 36

The difference in electrical potential energy between two places is called

Accepted Answer

voltage

Answer

current

Question 37

The human body is a conductor of electricity.

Accepted Answer

true

Answer

false

Question 38

In the event that someone is being shocked by electricity you should NEVER _____________.

Accepted Answer

touch them

Answer

call an adult

Answer

call 911

Answer

yell for help

Question 39

The fuse in a circuit melts when:

Accepted Answer

Too much current flows

Answer

An appliance isn't grounded

Answer

Too much voltage flows

Question 40

What type of electricity can power devices?

Accepted Answer

current electricity

Answer

static electricity

Question 41

What happens when you touch a metal doorknob after rubbing your shoes on the carpet?

Accepted Answer

Millions of electrons discharge from your finger

Answer

The doorknob sends a burst of electric current into your body

Answer

The doorknob becomes an insulator

Answer

Your finger becomes negatively charged

Question 42

What is the term for a reusable safety switch that opens the circuit when the current becomes too high?

Accepted Answer

circuit breaker

Answer

third prong

Answer

fuse

Answer

short circuit

Question 43

What is electrolysis?

Accepted Answer

breaking down a compound using a current

Answer

producing a compound using a current

Question 44

A 15 A circuit breaker is added to a circuit. If you plug in 3 devices with 3A, 2A & 5A, how many amps can a fourth device have if it's plugged into the same circuit?

Accepted Answer

5A

Answer

4A

Answer

3A

Answer

2A

Question 45

Which 2 electrodes would give the highest voltage in an electrochemical cell?

Accepted Answer

copper + carbon

Answer

zinc + zinc

Answer

copper + copper

Answer

copper + zinc

Question 46

Which would be the best electrolyte in an electrochemical cell?

Accepted Answer

sulfuric acid

Answer

sugar water

Answer

tap water

Answer

distilled water

Question 47

How many 1.5 V cells are in a 6V battery?

Accepted Answer

4

Answer

3

Answer

2

Answer

1

Question 48

When electrons do not flow through a load and instead flow where they are not intended to flow, it is called

Accepted Answer

short circuit

Answer

current

Answer

electrolysis

Answer

charge separation

Question 49

A battery is made up of ...

Accepted Answer

cells

Answer

fuses

Answer

water

Answer

static charges

Question 50

Electricity is the movement of _____.

Accepted Answer

ions

Answer

molecules

Answer

atoms

Question 51

Circuit breakers have a bimetallic switch that bends if the circuit is overloaded.

Accepted Answer

True

Answer

False

Question 52

Which is the best combination of materials to produce the highest current in a wet cell?

Accepted Answer

carbon, zinc, vinegar

Answer

copper, copper, sugar water

Answer

copper, copper, vinegar

Answer

copper, zinc, distilled water

Question 53

Which is the best combination of materials to produce the highest current in a wet cell?

Accepted Answer

copper, zinc, saltwater

Answer

copper, zinc, sugar water

Answer

zinc, zinc, vinegar

Answer

copper, zinc, distilled water

Question 54

A lemon can be used as an electrolyte to produce electricity.

Accepted Answer

true

Answer

false

Question 55

A person putting their finger in an electrical wall outlet can cause a short circuit.

Accepted Answer

true

Answer

false

Question 56

The amount of charge on electrons in a circuit is called

Accepted Answer

voltage

Answer

current

Question 57

The diagram shows a

Accepted Answer

closed circuit

Answer

open circuit

Question 58

A student is testing the conductivity of 4 different subtances. She uses a 2.5 V battery and records the current in the circuit in each of the 4 substances. The chart indicates the current measured. Which substance is an insulator?

Accepted Answer

R

Answer

Q

Answer

S

Answer

T

Question 59

In the diagram, the copper penny and paper clip function as

Accepted Answer

electrodes

Answer

sites of electrical insulation

Answer

electrolytes

Answer

sites of electrical energy storage

Question 60

Which would be the safest action to take during a thunderstorm?

Accepted Answer

go sit in a car

Answer

keep playing baseball

Answer

go to a hilltop

Answer

stand in the middle of a field

Question 61

Which would be the safest action to take during a thunderstorm?

Accepted Answer

go inside a shelter

Answer

keep playing golf

Answer

stand under a tree

Answer

sit in a golf cart

Question 62

Which of these devices is a reusable way to interrupt current in a circuit as a safety mechanism?

Accepted Answer

circuit breaker

Answer

fuse

Question 63

The amount of force that pushes the electrons through a circuit is called...

Accepted Answer

voltage

Answer

current

Question 64

What is Current?

Accepted Answer

A stream or flow of electrons in one direction.

Answer

The force of the electrons in a circuit.

Answer

Measures how the material reduces the flow of current.

Answer

A path in which electrons flow.

Sci 9 Unit D 1.0 Electricity, Safety, Cells

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