WorksheetsElectricity REVIEW 5th Grade Unit 6
Total questions: 18
Worksheet time: 11mins
A circuit diagram uses symbols to represent each part of the circuit. Look at the circuit diagram and the key shown here.
What is the purpose of the wire in the circuit?
to use the electric current
to connect the components
to provide a source of electrical energy
to change the circuit from open to closed
Look at the four ways that you could connect a battery, a paper clip, a light bulb, and some wire.
Which one of these would light the bulb?
Study the circuit below. When the switch is closed, all three light bulbs are lit.
What will happen if Bulb A burns out?
Bulbs B & C will continue to shine
Bulbs B & C will stop shining
Bulbs B & C will shine more brightly
Bulbs B & C will shine less brightly
Gary built the circuit shown here.
What happened when Gary closed the switch?
The bulb lit, and the buzzer sounded at the same time.
Nothing happened because light bulbs and buzzers must be in different circuits.
Nothing happened because there was no source of electrical energy in the circuit.
Nothing happened because the circuit needed to have two switches.
Jay uses various objects to complete a circuit. He compares how bright a bulb glows using each object. His results are shown here.
Which object is the BEST electrical conductor?
nail
eraser
crayon
pencil lead
Which of the following will cause electric charges to no longer flow through a circuit?
A wire is replaced with a conductor.
A switch is flipped, causing the circuit to become closed.
The circuit is changed so that the wires do not make a complete loop.
The wires are changed so that a series circuit becomes a parallel circuit.
The plastic coating was removed from the end of the wire shown here.
What is the purpose of the plastic coating?
to carry electric current in a circuit
to make the wire more flexible
to insulate people or objects from the electric current in the wire
to make it easier to tell when the wire is carrying electric current
The circuit in this picture has a battery, a light bulb, and three switches. All of the switches are open, and the light bulb is off.
Which of these combination of switches could be closed and cause the light bulb to remain off?
X and Y
Y and Z
X and Z
X, Y,, and Z
Study the materials in this table.
Which are placed in the wrong column?
air, copper, and glass
iron, glass, and rubber
bronze, glass, and iron
silver, bronze, and glass
A doorbell circuit includes a source of current, a bell, a button that switches the current on and off, and wires.
What energy transformation occurs when the doorbell rings?
electrical energy into light energy
electrical energy into sound energy
chemical energy into light energy
mechanical energy into electrical energy
Sara wants to make an electric circuit. She gathers the items shown here.
What other item does Sara need to make a complete circuit.
a battery
a switch
an insulator
a conductor
Look at this electric circuit diagram that has an electric circuit that has a switch as one of her parts.
What would happen to the light bulb if the switch changes from closed to open?
It would be duller.
It would be brighter.
It would stop glowing.
It would start glowing.
Philip needs to choose an item to use to complete a circuit he is making.
Which of the following items would be his BEST choice?
metal coin
glass bead
plastic straw
wooden toothpick
Liam wants to find out if foam is a good insulator. He decides to connect wires to two ends of a battery and then connect one wire to each end of a foam cup.
Which inquiry skill is Liam using?
predict
hypothesize
use models
plan and conduct an investigation
Look at the table that shows a group of objects classified as electrical conductors or insulators.
How many objects are not classified correctly?
0
1
2
4
Which of these materials is an electrical insulator?
CD case
paper clip
penny
staple
What energy transformation is happening when you use an electric oven to cook food?
thermal energy --> light energy
electrical energy --> thermal energy
thermal energy --> electrical energy
electrical energy --> motion energy
What is the difference between a series circuit and a parallel?
A series circuit has only one path for current to follow, and a parallel circuit has more than two paths.
A series circuit uses a battery power source and a parallel circuits uses a wall outlet.
A series circuit only has current flowing one direction, and a parallel circuit has current flowing in two directions.
A series circuit only powers one or two things, and a parallel circuits powers many devices.
