WorksheetsScience - Chapter 3 Electricity
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
Electric current cannot flow in a series circuit if
a)
the circuit contains an insulator.
b)
there is a break in the circuit.
c)
the circuit contains a resistor.
d)
the circuit has only one loop in it.
2.
What will happen in a parallel circuit if one of its loops is broken?
a)
electric current will not flow through any of the loops/
b)
electric current will still flow through the broken loop.
c)
electric current will still flow through the unbroken loops.
d)
the energy source will stop providing energy to move electric charges.
3.
A washing machine is an example of transforming
a)
electricity into motion energy
b)
motion energy into electric energy
c)
electricity into light
d)
heat into motion energy
4.
Which of the following is caused by the energy of motion?
a)
resistor
b)
friction
c)
conductor
d)
filament
5.
Which of the following uses resistors to transform electricity into heat?
a)
a toaster
b)
a car engine
c)
a gas stove
d)
a wind turbine
6.
True or False
Glass is a good conductor of electricity.
a)
true
b)
false
7.
True or False
For a current to flow, electric charges must complete a loop, or a circuit.
a)
true
b)
false
8.
True or False
Many objects transform energy as they work.
a)
true
b)
false
9.
True or False
Energy can be created and destroyed.
a)
true
b)
false
10.
A material through which an electric charge moves slowly
a)
parallel circuit
b)
insulator
c)
conductor
d)
series circuit
11.
A thin, coiled wire that can get very hot without melting
a)
conductor
b)
insulator
c)
filament
d)
resistor
12.
A material through which an electric charge can move easily is
a)
conductor
b)
series circuit
c)
parallel circuit
d)
insulator
13.
a circuit in which an electrical charge can only flow in one circular path is
a)
insulator
b)
series circuit
c)
parallel circuit
d)
conductor
14.
an object that uses the energy in a circuit is a
a)
conductor
b)
circuit
c)
insulator
d)
resistor
15.
A circuit that has two or more paths through which electrical charges may flow is a
a)
insulator
b)
conductor
c)
series circuit
d)
parallel circuit
16.
An electric charge in motion is
a)
parallel circuit
b)
insulator
c)
resistor
d)
electric circuit
17.
A light bulb is what part of a flashlight?
a)
conductor
b)
insulator
c)
resistor
d)
energy source
18.
The handle is what part of a flashlight?
a)
conductor
b)
insulator
c)
resistor
d)
energy source
19.
The wire is what part of a flashlight?
a)
conductor
b)
insulator
c)
resistor
d)
energy source
20.
The on/off switch is what part of a flashlight?
a)
conductor
b)
switch
c)
resistor
d)
energy source
21.
The battery is what part of a flashlight?
a)
conductor
b)
switch
c)
resistor
d)
energy source
22.
What is one use for an insulator?
a)
It slows down the flow of electric current to produce heat and light.
b)
It stores electric energy for later use.
c)
It allows electric current to flow through it.
d)
It make electrically charged objects safe to handle.
23.
True or False
Static electricity happens when positive and negative charges no longer balances.
a)
true
b)
false
24.
One example of a resistor is
a)
a power cord
b)
a parallel circuit
c)
a battery
d)
a filament
25.
Which of these materials is a conductor?
a)
rubber
b)
chalk
c)
gold
d)
glass
100 %
