# UNIT 6 Review

## Quiz by Kimberly Dendy

### Our brand new solo games combine with your quiz, on the same screen

Correct quiz answers unlock more play!

22 questions
• Q1
If someone builds an electric circuit using a battery, a light bulb, paper clip, and cooper wire, would it work if the circuit doesn't make a complete loop?
yes
No, because he needs an out let
no, because a circuit has to be a complete loop
maybe
30s
• Q2
If Jessica replaces a paper clip with a wooden stick, would the circuit still work?
No, the wood is an insulator (doesn't move electrons)
Yes, the wood is a generator
No, the wood is a battery
No, the wood is a conductor (moves electrons)
30s
• Q3
I have an electric circuit with three light bulbs (A, B, C) , a switch, and a battery. What happens remove bulb A.
It will blow up!
The switch will break
None of the other bulbs will work
Everything will still work
30s
• Q4
What happens if you have an electric circuit with three bulbs ( Bulb A, Bulb B, Bulb C). What happens if Bulb B burns out? What happens to Bulb A and C?
They will blow up.
They will not stay lit because Bulb B is out.
They will still stay lit because the electricity still runs through Bulb B.
Bulb C will light up.
30s
• Q5
In a light bulb, such as the one shown below, the filament glows brightly when the switch is turned on
light energy into electrical energy
potential energy into thermal energy and light energy
chemical energy into light energy
electrical energy into thermal energy and light energy
30s
• Q6
Some materials conduct electricity, but others do not. Which of these materials is an electrical conductor?
plastic ruler
toothpick
rubber band
nail
30s
• Q7
There are two main types of electric circuits: series circuits and parallel circuits. How are series circuits different from parallel circuits?
A series circuit uses electrical energy from a battery. A parallel circuit uses current from an outlet or generator.
In a series circuit, current flows in one direction. In a parallel circuit, current flows in both directions.
A series circuit provides current to one or two devices. A parallel circuit provides current to many devices.
In a series circuit, there is only one possible path that current can follow. In a parallel circuit, there are two or more possible paths.
30s
• Q8
Many homes use electric ovens to cook food. What energy transformation occurs in an electric oven?
electrical energy into thermal energy
electrical energy into energy of motion
thermal energy into light energy
thermal energy into electrical energy
30s
• Q9
Many devices in your home convert electrical energy into other forms of energy. Which of these devices converts electrical energy into motion?
light bulb
door buzzer
water faucet
power saw
30s
• Q10
Sometimes calculators are solar powered with a light-sensitive panel. The calculator is taking solar energy and turning it into what kind of energy?
light energy
thermal energy
motion
electric current
30s
• Q11
When you walk into a dark room, you flip a switch on the wall and the lights come on. What is the purpose of the wall switch?
It produces the electric current that the lights use.
It carries electric current from the wall to the lights on the ceiling.
It closes a circuit so that electric current can flow through the lights.
It transforms electrical energy into light energy.
30s
• Q12
What is the purpose of a circuit breaker?
to shut off the current if a circuit is overloaded
to match the amount of current to what is needed
to split electric current into different circuits
no purpose
30s
• Q13
. There is a limit to the amount of electric current that can be carried safely by an electric circuit. If too many appliances are attached to a particular circuit, the amount of current can be higher than the safe level. What happens if there is too much current in the circuit?
Wires in the circuit become hot.
Electrons stop moving in the wires.
Some of the appliances stop working.
Part of the current flows backward toward the outlet
30s
• Q14
All electric circuits need certain components in order to work. Which of the following mustbe part of an electric circuit?
light bulb or buzzer
battery or other source of current
switch or circuit breaker
copper wires
30s
• Q15
Which of these elements is common to all electrical circuits?
wall outlet
conductor
battery
insulator
30s

Teachers give this quiz to your class