WorksheetsUnit 7 Working with Electricity
Total questions: 26
Worksheet time: 13mins
A material that allows the flow of electricity to pass through it
conductor
insulator
electricity
static electricity
A path in which electrical charges can flow.
circuit
conductor
electric current
static electricity
A material that resists the flow of electricity
insulator
conductor
circuit
switch
A ___ circuit has a break in the path of electricity
open
closed
insulator
conductor
A circuit that makes a complete loop
closed
open
insulator
conductor
A type of circuit which has more than one path for electric charges to flow
parallel
series
electric
current
A type of circuit which has only one path for electric charges to flow
series
parallel
electric
current
Which is a conductor of electricity?
copper
wood
plastic
rubber
Which is an insulator of electricity?
wood
copper
steel
gold
This fan is plugged into an electrical outlet. Describe the energy transformation that makes the fan work.
Electrical energy transforms into mechanical energy
Electrical energy transforms into thermal energy
Mechanical energy transforms into electrical energy
Why is electrical wire almost always covered with a plastic coating?
To prevent users from getting electrical shocks.
To show the different colors of the wires.
To help the electricity to conduct easily.
Is this an open or closed circuit?
open
closed
Will this circuit light the bulb?
no because it is an open circuit
no because it is an closed circuit
yes because it is an open circuit
yes because it is an closed circuit
Which type of circuits are these?
A = Series
B = Parallel
A = Parallel
B = Series
Which circuit will two bulbs stay lit even if you unscrew one bulb?
B
A
What is the one thing every electrical circuit needs?
a battery or source of electricity
a light bulb
a switch
a motor
"Flipping" a light switch turns the lights on and off. What exactly does the switch do?
it opens or closes the circuit
it produces electricity
it transforms electricity to light energy
When the switch is closed, what statement is true?
All the bulbs will light up
None of the bulbs will light up
Only bulb D will light up
When the switch is down, all the bulbs will light. w
Which lightbulb, when removed, will make all the other lightbulbs to go out?
D
C
A
B
When the switch is closed, all bulbs light up. If light bulbs B and C are removed, what will happen to bulbs A and D?
A and D will stay on
A and D will go out
A goes out, D stays on
A stays on, D goes out
When the switch is closed, the circuit is complete. Which devices will turn on when the switch is closed?
Buzzer, Electric motor and Light bulb
Buzzer and Light bulb
Electric motor and Light bulb
None
Electricity is needed to light a light bulb. What kind of energy is created when electricity flows through a light bulb?
Light and Thermal energy
Mechanical energy
Light energy
Potential energy
ALL electrical circuits need ___
conductors like wires
light bulbs
electric motor
batteries
The calculators in our classroom have a light sensitive panel which "powers" the calculator. What is the energy transformation that allows you to use our calculators?
light energy changes to electrical energy
electrical energy changes to light energy
light energy changes to heat energy
battery energy changes to light energy
Which of these is common to all electrical circuits?
conductor
insulator
battery
electrical outlet
Mr. Thornton asked a student to open circult 1. What is he really asking the student?
Turn off the first light
Turn on the first light
