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WorksheetsElectricity - Review
Total questions: 20
Worksheet time: 21mins
What is the effect of changing the wire in a circuit from a thick wire to a thin wire?
The overloaded bulb will blow out.
The bulb brightness stays the same.
The bulbs become dimmer.
The bulbs become brighter.
Why do electricians always wrap wires in plastic?
Plastic comes in many different colors
Plastic is a good electrical conductor
Plastic makes the wires easy to bend
Plastic is a good electrical insulator
What type of circuit is shown in the image?
series
parallel
Which of the following best describes what is being created in the picture?
static electricity
potential energy
magnetic field
Which electromagnet can lift more paperclips?
example W
example x
Which of the following best describes what happens if you increase the number of turns of wire in an electromagnet?
the wire burns up
the magnetic field gets bigger
the magnet weakens
the poles reverse
If the light bulb in the middle burned out, what would happen to the other two?
The light bulb to the left would stay lit, but the one to the right would turn off.
They would both stay lit.
The light bulb to the right would stay lit, but the one to the left would turn off.
They would both turn off.
In a series circuit, how is the brightness of a light globe affected when another globe is connected?
It gets brighter
It stays the same
It gets dimmer
It goes out
Which light globe(s) would never light up?
A
B,C,D
A,B,C,D
None
The parts of an atom which move from one atom to the next to create a flow of electricity
current
electron
proton
neutron
A device that moves a magnet to produce an electric current is known as-
electrical generator
electric motor
electromagnet
transformer
The type of magnet in which the magnetic field is produced by an electric current is called an-
horseshoe magnet
bar magnet
refrigerator magnet
electromagnet
To create a powerful electromagnet, select wire at a _______ diameter and a create ________ loops on a metal rod.
small; less
small ; more
large ; less
large ; more
In a series circuit what happens when you add another bulb?
The bulbs gets brighter
The bulbs gets dimmer
Nothing changes
