review science g4

Multiple Choice

What is an electrical circuit?

• a whole bunch of wires

• a broken path that electric charges can flow

• a circuit board

• a complete, unbroken path through which electric charges flow

Multiple Choice

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.

Multiple Choice

A series circuit has ____ path(s) that the electric current can take.

• One

• Two

• Three

• Four

Multiple Choice

This is an example of a _______ circuit

• open

• series

• parallel

• switch

Multiple Choice

Pick the correct sentence.

• This circuit will work because it is a closed circuit.
• Energy will freely flow in this circuit.
• This circuit will not work because there is no energy source.
• This circuit will not work because there is no switch.

Multiple Choice

How many different types of circuits are there? 

• 1
• 3
• 2
• 4

Multiple Choice

A student builds a circuit made up of a battery, two light bulbs, and a switch. What will the student most likely observe in this circuit?

• Light bulb 1 and light bulb 2 will both be on

• Light bulb 1 will be off, but light bulb 2 will be on

• Light bulb 1 and light bulb 2 will both be off

• Light bulb 1 will be on, but light bulb 2 will be off

Multiple Choice

The diagram shows a series circuit with three lit bulbs. How many of the bulbs will remain lit if the wire is cut a the point shown by the arrow?

• 0

• 1

• 2

• 3

Multiple Choice

Choose the correct sentence.

• This circuit will work because it is an open circuit.
• This circuit will work because it is a closed circuit.
• This circuit will NOT work because it is an open circuit.
• This circuit will NOT work because it is a closed circuit.

Multiple Choice

What is missing from this circuit? Why would the light bulbs be off?

• The battery, there is no power for the circuit to work.

• The switch is open, so the circuit is broken.

• The third light bulb, that is needed to complete the circuit.

• The wires are not connected properly.

Multiple Choice

this circuit is .....?

• open
• parallel
• closed
• The cutest little circuit evah!

Multiple Choice

What is a switch's function in a circuit?

• to make the current hotter or colder
• turn on and off the flow of current
• the pathway that current flows
• to add more power to the circuit

Multiple Choice

Which statement is true?

• The light bulb will light up because the  circuit is complete.
• The light bulb will light up because the  circuit is broken.
• The light bulb will not light up because the  circuit is complete.
• The light bulb will not light up because the  circuit is broken.

Drag and Drop

A circuit is a ​

Placeholder

where electricity can flow.

Drag these tiles and drop them in the correct blank above

complete path

incomplete path

road

wire

Multiple Select

What are the components of a basic circuit?

• wires

• battery

• table

• light bulb

• room

Multiple Choice

Is the following photo of an open circuit or closed circuit? 

• A closed circuit which allows electricity to flow
• An open circuit which does not allow electricity to flow

Multiple Choice

The circuit on the left is not complete (the light is off) because:

• the switch is closed

• the switch is open

• the battery is missing

• the battery is in backwards

Multiple Choice

An incomplete circuit is shown.
To complete the circuit, a wire should be placed from —

• Point D to Point C
• Point B to Point C
• Point A to Point D
• Point B to Point D

Multiple Choice

This steel paperclip would allow electricity to flow through it because:

• it is a conductor

• it is an insulator

• it is friendly

• it breaks the circuit

Multiple Choice

The circuit on the right is complete (the light is on) because:

• the switch is closed

• the switch is open

• the battery is hot

• the battery is red

Multiple Choice

This rubber ducky would block the flow of electricity, because:

• it is a conductor

• it is an insulator

• it is yellow

• it completes the circuit

Multiple Choice

water is a______?

• conductor
• insulator

Multiple Choice

wood is a _____?

• conductor
• insulator

Multiple Choice

Will this circuit light the bulbs?

• Yes, both will light up

• Yes, but only the one on the right

• Yes, but only one on the left

• No, neither of the bulbs will light up

Multiple Choice

What is a circuit?

• A constant flow of electricity 
• A path that a current can flow along

Multiple Choice

A _______ controls whether an electric device is ON or OFF. 

• electrical switch
• electric circuit

Multiple Choice

We need a _____ circuit for the light bulb to BE ON. 

• closed
• open

Multiple Choice

What is a conductor?

•  A material that allows electricity to flow through it.  The circuit is complete. 
• A material that does not allow electricity to flow through.  It stops the flow of electricity.
• A light switch.

Multiple Choice

Which of the following is NOT a state of matter?

• Liquid

• Solid

• Evaporation

• Gas

Multiple Select

Select TWO examples of insulators.

• Dry wood

• Copper

• Rubber

• Gold

Multiple Select

Select TWO examples of conductors.

• Dry wood

• Copper

• Rubber

• Gold

Multiple Choice

Select “complete” if you think the bulb will turn on or “incomplete” if you think the bulb will not turn on.

• Complete circuit

• Incomplete circuit

Multiple Choice

Select “complete” if you think the bulb will turn on or “incomplete” if you think the bulb will not turn on.

• Complete

• Incomplete

Multiple Choice

Select “complete” if you think the bulb will turn on or “incomplete” if you think the bulb will not turn on.

• Complete

• Incomplete

Multiple Choice

In a circuit diagram, what does this symbol represent?

• battery

• filament

• bulb

• wire

Multiple Choice

Why is an electrical wire covered by plastic?

• The plastic is a good conductor of electricity.

• The copper wire inside the plastic is a good insulator of electricity.

• The plastic will not melt if it gets too hot.

• The plastic is a good insulator and keeps the wire from shocking you.

Multiple Choice

Which of the following diagrams will NOT light up?

Multiple Choice

In which of these diagrams will the light be the brightest?

Match

Match the definition to the correct vocabulary word.

• insulator

• open circuit

• closed circuit

• conductor

Matter that does not allow electric current to easily pass through it

A circuit in which electric current cannot flow

A circuit in which electric current can flow in an unbroken path

Matter that allows electric current to easily pass through it

• Matter that does not allow electric current to easily pass through it

• A circuit in which electric current cannot flow

• A circuit in which electric current can flow in an unbroken path

• Matter that allows electric current to easily pass through it

Labelling

Label the positive and negative terminals of the dry cell battery.

Drag labels to their correct position on the image

-

+

Open Ended

Explain why the bulb in the diagram will not light.

Multiple Choice

Use the diagram of the series circuit to answer the question.

What would happen to Bulb 1 and 2 if switch B was opened?

• One bulb 1 would be lit.

• Only bulb 2 would be lit.

• Both bulb 1 and 2 will be lit.

• Neither bulb 1 or 2 would be lit.

Open Ended

Use the diagram of the series circuit to answer the question.

If another battery is added to the circuit, how will the brightness of the bulbs change?

Labelling

Label which diagram is a series circuit and which is a parallel circuit.

Drag labels to their correct position on the image

parallel

series circuit

Multiple Choice

Use the diagram to answer the question.

What will happen to Bulb A if Bulb B is removed?

• Bulb A will not be lit.

• Bulb A will be brighter.

• Bulb A will remain lit.

• Bulb A will have a very dim light.

Multiple Choice

Use the diagram to answer the question.

What will happen to Bulb C if Bulb D is removed?

• Bulb C will remain lit.

• Bulb C will not be lit.

• Bulb C will be brighter.

• Bulb C will have a very dim light.

Multiple Choice

For a light bulb to turn on, does the circuit have to be open or closed?

• open

• closed

• both

• half-way open

Multiple Choice

A _________open and closes a circuit.

• conductor

• insulator

• source

• switch

Multiple Choice

A material that does NOT allow electricity to flow through it is called a_____________.

• source

• switch

• insulator

• conductor

Multiple Choice

A material the ALLOWS electricity to flow though it is called a ________________.

• Insulator

• Conductor

• switch

• source

Multiple Choice

An example of a conductor of electricity is__________.

• rubber

• glass

• plastic

• copper

Multiple Choice

An example of an insulator of electricity is________________.

• copper

• metal

• rubber

• steel

Multiple Choice

Which is NOT part of a circuit?

• power source

• pathway

• output device

• insulator

Multiple Choice

What are the two types of circuits?

• series and incomplete

• series and parallel

• parallel and complete

• series and double

Multiple Choice

A ____________circuit only has one pathway for the electrical current to flow through.

• series

• complete

• parallel

• incomplete

Multiple Choice

A ____________ circuit has more than one pathway for the electrical current to pass through.

• series

• complete

• parallel

• incomplete

Multiple Choice

What is the power source in the diagram of this circuit?

• switch

• battery

• wire

• light bulb

Multiple Choice

What is the output device in this diagram?

• switch

• battery

• wire

• light bulb

Multiple Choice

Which is the pathway for the current to travel though in this diagram?

• switch

• battery

• wire

• light bulb

Multiple Choice

Who invented the lightbulb?

• Ben Franklin

• Mrs. Mann

• George Washington

• Thomas Edison

Multiple Choice

this circuit is .....?

• open

• parallel

• closed

• lit up

Multiple Choice

What is a circuit that only has ONE path for electricity to flow?

• series circuit

• closed circuit

• parallel circuit

• light bulb

Multiple Choice

A PATH along which electricity can flow is a ___________________?

• light bulb

• switch

• insulator

• circuit

Multiple Choice

A parallel circuit has more than one pathway.

• True

• false

Multiple Choice

What kind of circuit is this?

• Series

• Consecutive

• Parallel

• Training

Multiple Choice

What kind of circuit is this?

• series

• parallel

• training

Multiple Choice

In a parallel circuit, if one connection is broken, all of the connections stop working.

• True

• False

Multiple Choice

If you replace the paper clip with a plastic spoon, what happens?

• The bulb doesn't light

• The bulb is dimmer

• The wires get hot

• There is no change

​Series Circuits

• ​In a series circuit, there is only one path for electricity to travel.

• ​If one part of the circuit stops working (the load, the wires, or the power source) the entire circuit stops working.

​Parallel Circuit

• ​In a parallel circuit, there is more than one pathway for electricity to flow.

• ​If one part of the parallel circuit stops working, the electricity will still flow.

Multiple Choice

What kind of circuit is this?

• series
• parallel

Multiple Choice

What kind of circuit is this?

• Series
• Consecutive
• Parallel
• Training

Multiple Choice

Does this diagram represent a series or parallel circuit?

• series circuit
• parallel circuit

Multiple Choice

When you remove a bulb from a three bulb circuit, and the other two bulbs go off, then the bulbs must have been connected in __________.

• parallel
• series
• open
• closed

Multiple Choice

What will happen if one light bulb is removed from this circuit?

• The other bulbs will go out.
• The other bulbs will stay on
• The other bulbs will get dimmer.
• The battery will become stronger.

Multiple Choice

Study the circuits below carefully.

Which of the following two bulbs have the same brightness?

• A and B

• A and D

• B and C

• A and D

Multiple Select

The diagram shows two circuits with three different bulb colours.

Which circuits A or B will allow a traffic light to turn from green to yellow, then to red?

Multiple Choice

The diagram below shows an electric circuit.

If bulb P is damaged, how many bulbs will still be lit?

• 1

• 2

• 3

• none

Multiple Choice

A circuit diagram is set up as shown below. Bulb A and B will light in equal brightness when the switch is closed.

What will happen to Bulb A?

• It will become brighter than before.

• It will become dimmer than before.

• It will light up with the same brightness.

• The bulb will fuse and it will not light up.

Multiple Choice

Look at circuit Y below.

What is the difference you observe in bulb A when bulb B is removed?

• Bulb A will shine more brightly.

• Bulb A will shine less brightly.

• The brightness of Bulb A will remain the same.

• Bulb A will not light up.

Multiple Choice

Gia Anh and Kiet wanted to find out whether the position of the bulbs would affect the brightness of the bulbs. They used new batteries, bulbs and wires in their experiment. The length of the wire is the same. They set up the two circuits as shown below.

What would be the possible conclusion for their experiment?

• The brightness of the bulbs in X and Y is the same.

• The brightness of bulbs in X is dimmer than that in Y.

• The brightness of bulbs Y is dimmer than that in X.

• The bulbs in X remain unlit but the bulbs in Y lit up.

Multiple Choice

Look aat the four circuits below.

Which of the following correctly represents the brightness of the bulbs A, B, C and D in each circuit?

(Note: Put in order from the brightest)

• A,C,B,D

• B,D,A,C

• B,A,D,C

• C,D,A,B

Multiple Choice

Why does the following circuit not work?

• The light bulb is broken

• The switch is closed

• The wood block is an insulator

• The battery is dead

Multiple Choice

The best conductors for electricity are made of...

• wood
• plastic
• rubber
• metal

Multiple Choice

Which statement is true?

• The light bulb will light up because the  circuit is complete.
• The light bulb will light up because the  circuit is broken.
• The light bulb will not light up because the  circuit is complete.
• The light bulb will not light up because the  circuit is broken.

Multiple Choice

If you replace the paper clip with a plastic spoon, what happens?

• The bulb doesn't light
• The bulb is dimmer
• The wires get hot
• There is no change

Multiple Select

Select all of the materials that make good insulators.

• rubber

• steel

• copper

• wood

• plastic

Multiple Choice

What type of circuit is this?

• Series Circuit

• Parallel Circuit

Multiple Choice

What is a conductor?

• A circuit

• An object that PREVENTS electricity from flowing

• An electrical object

• An object that ALLOWS electricity to flow

Multiple Choice

This is a

• series circuit because there's 3 lightbulbs

• parallel circuit because there's multiple paths for current to flow

• parallel circuit because there's 6 wires

• series circuit because there's one path

Multiple Select

These magnets are repelling. What would their poles be to cause this? Pick 2

• N-S

• S-S

• There is no poles

• N-N

Multiple Choice

The lightbulbs in this circuit are dim because

• the lightbulbs are sharing one current

• each lightbulb is getting its own current

• this is a parallel circuit

• there are too many lightbulbs

Multiple Choice

Students constructed a circuit using different-colored lightbulbs. What will happen if Switch 3 is closed and the other switches are left open?

• Only the white bulb will operate

• None of the bulbs will operate

• Only the white and yellow bulbs will operate

• Only the red and blue bulbs will operate

Multiple Choice

The diagram shows an electric circuit with four bells that a student plans to build. When the student connects the wire as shown, which of the bells will ring?

• Bell 1 only

• Bells 1 and 4 only

• Bells 3 and 4 only

• Bells 1, 2, 3, and 4

Multiple Choice

A student builds a circuit made up of a battery, two light bulbs, and a switch. What will the student most likely observe in this circuit?

• Light bulb 1 and light bulb 2 will both be on

• Light bulb 1 will be off, but light bulb 2 will be on

• Light bulb 1 and light bulb 2 will both be off

• Light bulb 1 will be on, but light bulb 2 will be off

Match

NONE of the following circuits work. Match each photo to the reason why they don't work.

There is an insulator blocking the flow.

It's open (it has a gap in it).

There is no power source.

The batteries are facing the wrong way.

• There is an insulator blocking the flow.

• It's open (it has a gap in it).

• There is no power source.

• The batteries are facing the wrong way.

Categorize

Options (6)

Organize these circuit into the right category: parallel circuit or series circuit

Series Circuit (one path)

Parallel Circuit (multiple paths)

Hotspot

Which bulb(s) will be lit when ONLY switch 4 is closed?

Hotspot

Which bulb(s) will be lit when ONLY switch 1 is closed?

Hotspot

Which bulb(s) will be lit when ONLY switch 3 is closed?

Hotspot

With the switch closed, which bulbs will light up?

Multiple Choice

With the switches as they are, how many bulbs will light up?

• 0

• 1

• 2

Multiple Choice

Which of these changes to the electric circuit shown above will cause the lightbulb to light up.

• Straightening the wire so that the current can flow more easily

• Adding a switch and more wire so that the current can flow more easily

• Turning one battery so that its positive end connects to the other battery's negative end

• Making the length of wire the same on both sides of the lightbulb

Multiple Choice

Will the light bulb in this circuit light and why/why not?

• yes, because it has two batteries
• no, because the switch is open
• yes, because it is in a circuit
• no, because the bulb is burned out

Multiple Choice

How will these two magnets respond to each other?

• attract

• repel

• no reaction

Multiple Choice

How will these two magnets respond to each other?

• attract

• repel

• no reaction

Multiple Choice

An incomplete electric circuit is shown. The lightbulb is not lit. Which object placed at X would complete the circuit and light the bulb?

• magnet

• battery

• metal nail

• second lightbulb

Multiple Choice

The diagram shows an open circuit. The bulb is not lit. Four places in the circuit are labeled 1, 2, 3, and 4. One wire has been connected between 1 and 3. In order to light the bulb, another wire should be connected between

• 1 and 2

• 1 and 4

• 2 and 3

• 2 and 4

Multiple Choice

In the image, what type of circuit is shown?

• series

• parallel

Multiple Choice

Is the image shown the switch is closed, are the lights on or off?

• all lights are off

• all lights are on

Multiple Choice

Is the image shown a series or a parallel circuit?

• series

• parallel

Multiple Choice

What type of circuit is shown in the image?

• series

• parallel

Multiple Choice

What type of circuit is shown in the image?

• series

• parallel

Multiple Choice

What will happen to the 2 magnets if they are released?

• attract

• repel

Multiple Choice

What type of circuit is shown in the image?

• series

• parallel

Multiple Choice

​Why does the top magnet appear to float above the bottom magnet?

• The magnets are made of different materials.

• The like poles repel each other.

• The opposite poles repel each other.

• the magnets have different gravitational pull

Multiple Choice

Betty made this model. In her model the bulb is not lit.

Which of these statements best explains why the bulb is not lit?

• A wire is missing.

• The bulb is burned out.

• The switch is open.

Multiple Choice

Tisha turned on a switch.

What does turning a switch on do?

• open a circuit, allowing electricity to flow

• close a circuit, allowing electricity to flow

Multiple Choice

Choose the correct sentence.

• This circuit will work because it is an open circuit.
• This circuit will work because it is a closed circuit.
• This circuit will NOT work because it is an open circuit.
• This circuit will NOT work because it is a closed circuit.

Multiple Choice

Which of the following can work as an energy source?

• Battery
  
• Light bulb
• Wire
  
• All of them

Multiple Choice

Which diagram shows a circuit that works?

Multiple Choice

In which of the circuits A and B will the bulbs be brighter?

• Circuit A

• Circuit B

Multiple Choice

In which of the circuits A, B and C will the bulb not light up?

• Circuit A

• Circuit B

• Circuit C

Multiple Choice

What is the symbol used for a bulb or a lamp?

Multiple Choice

If a third lamp is added to the electrical circuit, all the lamps will be dimmer.

• True

• False

Multiple Choice

If a longer connecting wire is used, the lamps will be brighter.

• True

• False

Multiple Choice

It is the unit electric current is measured in.

• volt

• circuit

• ampere

• multimeter

Multiple Choice

What is the symbol used for a closed switch?

Multiple Choice

If the switch is closed, your bulb will

• turn on

• turn off

Multiple Choice

In order for the circuit to be complete, you must have a ________________________ for electricity to flow on.

• wire

• closed path

• open path

• switch

Multiple Choice

Please select which is a power source.

• Television

• light bulb

• battery

• phone

Multiple Choice

What is number 2b?

• switch

• wire

• device

• power source

Multiple Choice

What is number 2a?

• switch

• wire

• device

• power source

Multiple Choice

What is number 1?

• switch

• wire

• device

• power source

Multiple Choice

What is number 3?

• switch

• wire

• device

• power source

Multiple Choice

What is number 4?

• switch

• wire

• device

• power source

Multiple Choice

What is a circuit?

• A constant flow of electricity 
• A path that a current can flow along

Multiple Choice

What type of circuit is shown?

• Parallel

• Series

• Open

​Parallel Circuit

• ​In a parallel circuit, there is more than one pathway for electricity to flow.

• ​If one part of the parallel circuit stops working, the electricity will still flow.

​Series Circuits

• ​In a series circuit, there is only one path for electricity to travel.

• ​If one part of the circuit stops working (the load, the wires, or the power source) the entire circuit stops working.

Two types of Circuits

• ​There are two types of circuits:

• ​parallel: there are multiple pathways for electricity to travel

• ​series: there is only one pathway for electricity to travel

Multiple Choice

A fifth grade class constructed this circuit.  Which of these objects most likely made the light glow when connected to points X and Y?

• plastic straw
• cotton string
• aluminum foil
• rubber eraser

Multiple Select

Which circuits below would work to light the bulb?

Circuits

• Electricity is the flow of electric charges.

• Charge is a property of matter and can be positive or negative.

• Charges that move are most often electrons from an atom.

• A circuit is a closed loop of conducting material that lets the charges flow through it.

Circuit Connections

• The wires in a circuit carry the electric current.

• The circuit has to be complete to allow electricity to travel.

• A circuit also needs something to provide a force to push the charge along the wires - this is what a battery does.

Circuit Symbols

• Circuit symbols are used in circuit diagrams to show how a circuit is connected together.

• Straight lines are used to show the wires.

Multiple Choice

What is the circuit symbol for a closed switch?

Multiple Choice

What is the circuit symbol for a bulb?

Multiple Choice

What is the circuit symbol for a voltmeter?

Multiple Choice

What is the circuit symbol for a bulb?

Multiple Choice

What is the circuit symbol for an open switch?

Multiple Choice

What is the circuit symbol for a battery?

Multiple Choice

What is the circuit symbol for a cell?

Multiple Choice

What is the circuit symbol for a resistor?

Drawing Circuits

• This circuit shows a battery, bulb and switch.

• To draw a circuit you start with the symbols and then draw straight lines to connect them.

Open Ended

Why do you have to put batteries in the right way round in a remote?

Connecting Batteries

• Batteries provide the force to push charge round the circuit.

• They push the charge from the negative end and it returns to the positive end.

Multiple Select

What mistakes are there with the circuit he has drawn?

• One of the batteries is the wrong way round

• The wires to the motor aren't drawn with a ruler

• One of the circuit symbols is wrong

• There are small gaps in the circuit

• The switch is in the wrong place

Multiple Choice

What is this an example of ?

• Complete Circuit

• Open Circuit

• Closed Circuit

Multiple Choice

This is an example of a ____________.

• Open Circuit

• Closed Circuit

• Nonworking circuit

• Boring circuit