WorksheetsElectricity Unit Test
Total questions: 39
Worksheet time: 39mins
Name
Class
Date
1.
“moving” type of electricity
a)
Static Electricity
b)
Current Electricity
c)
Circuit
d)
Friction
2.
The rubbing of materials that builds up charges
a)
Static Electricity
b)
Current Electricity
c)
Circuit
d)
Friction
3.
“non-moving” type of electricity.
a)
Static Electricity
b)
Current Electricity
c)
Circuit
d)
Friction
4.
A path for electrons to flow
a)
Static Electricity
b)
Current Electricity
c)
Circuit
d)
Friction
5.
A measure of the prevention of electron flow.
a)
Conductors
b)
Insulators
c)
Voltage
d)
Resistance
6.
The force or pressure that pushes electrons.
a)
Current
b)
Resistance
c)
Power
d)
Voltage
7.
Materials that allow electrons to move.
a)
Conductors
b)
Insulators
c)
Resistance
d)
Voltage
8.
Materials that prevent the flow of electrons
a)
Conductors
b)
Insulators
c)
Metals
d)
Voltage
9.
Current is measured in the units ...
a)
Amperes
b)
Ohms
c)
Watts
d)
Volts
10.
Resistance is measured in the units ...
a)
Amperes
b)
Ohms
c)
Watts
d)
Volts
11.
Examples of conductors are ...
a)
plastics
b)
metals
c)
series
d)
parallel
12.
Circuits that have more than one path are ...
a)
plastics
b)
metals
c)
series
d)
parallel
13.
Circuits that have only one path to travel are ...
a)
plastics
b)
metals
c)
series
d)
parallel
14.
Examples of insulators are ...
a)
plastics
b)
metals
c)
series
d)
parallel
15.
Ampere's Law shows the relationship between current, resistance, and voltage.
a)
True
b)
False
16.
Most houses run on parallel circuits.
a)
True
b)
False
17.
Two objects with negative charges attract one another.
a)
True
b)
False
18.
Friction does not create static electricity.
a)
True
b)
False
19.
Lightning is an example of static discharge.
a)
True
b)
False
20.
A student’s hair spread out during the demo because they each had the _________ charges.
a)
same
b)
different
21.
Paper is a good _______ of electricity.
a)
Conductor
b)
Insulator
22.
Copper is used within electrical wires.
a)
True
b)
False
23.
Electromotive force (voltage) pushes ________ around a circuit.
a)
protons
b)
electrons
24.
Nichrome has very ______ resistance.
a)
Low
b)
High
25.
Electrons are able to flow freely in an “open” circuit.
a)
True
b)
False
26.
Thin wires have ___________ resistance than thick wires.
a)
more
b)
less
27.
Long wires have ____________ resistance than short wires.
a)
more
b)
less
28.
Different types of materials have different strengths of electrical resistance.
a)
True
b)
False
29.
Lightning rods on homes are important because they “ground” the electricity if they are hit by lightning.
a)
True
b)
False
30.
Parallel circuits are better for use in a school because of which of the following:
a)
They allow each appliance to get the full current
b)
If one appliance is turned off the others stay on
c)
They allow electricity to move quicker because of low resistance
d)
They allow each appliance to get the full current and if one appliance is turned off others can stay on.
31.
Why does thunder result from lightning?
a)
The thunder is the sound of the static building up
b)
The lightning hits the ground giving off thunder
c)
The lightning heats up and expands the air around it
d)
Zeus is arguing with the other Gods
32.
Which describes how electrons move within a flashlight
a)
They leave the positive terminal and flow towards the negative one
b)
They leave the negative terminal and flow towards the positive one
c)
They leave each appliance and flow towards each terminal
d)
They leave the negative terminal and flow to the appliances and then come back to the negative terminal
33.
Which best explains why a light bulb lights up?
a)
The electrons give off heat when they flow through the filament
b)
The electrons have a higher voltage
c)
The current and resistance are exactly equal to each other
d)
The filament has a low resistance
34.
Why did we rub the PVC pipe with fur during the soda can demo?
a)
So that the PVC pipe would become neutral.
b)
So that the PVC Pipe would build up a charge.
c)
So that the PVC Pipe and aluminum can would have the same charges.
d)
So that the PVC Pipe is infused with magic.
35.
If a circuit is arranged in parallel, adding more light bulbs to it will do which of the following:
a)
Decrease the voltage each bulb receives
b)
Increase the voltage each bulb receives
c)
Have no impact on the voltage each bulb receives
d)
Decrease the overall resistance of the circuit
36.
Adding a resistor to a circuit will do which of the following:
a)
Increase the electrical current
b)
Decrease the electrical current
c)
Increase the voltage
d)
Decrease the voltage
37.
Adding more batteries to a circuit will have which impact:
a)
Increase the resistance
b)
Increase the voltage
c)
Increase the electrical current
d)
Increase voltage and current
38.
A switch can control whether a light is on or off by:
a)
Opening the circuit and allowing
electrons to move through it
b)
Closing the circuit and allowing
electrons to move through it
c)
Increasing the voltage high enough to
allow light to be given off
d)
Decreasing the resistance to allow
the electrons to move more freely
39.
Which of the following describes best how a Van der Graaf generator works?
a)
The belt transfers electrical current
from the ball to the base.
b)
The belt transfers electrical voltage
from the base to the ball.
c)
The belt transfers electrical charge
from the base to the ball.
d)
The belt increases the resistance in
the circuit causing a static discharge.
100 %
