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WorksheetsREDO: Electromagnetism
Total questions: 20
Worksheet time: 11mins
What happens when an electric current flows through a wire?
The wire begins to spin.
Nothing happens.
A field of gravity is created around the wire.
A magnetic field is created around the wire.
What does this image show?
Parallel circuit
Series circuit
Magnet
Electromagnet
The area of magnetic force around a magnet is known as its ____________.
magnetism
magnetic current
magnetic field
electric current
Increasing the number of coils in an electromagnet will _________ the power of the magnet.
decrease
increase
not affect
What type of core is best for electromagnets?
Steel
Iron
Plastic
Copper
What conclusion can you draw from this graph?
As current increases, magnetic strength decreases.
As current increases, magnetic strength increases.
As current decreases, magnetic strength increases.
There is no relationship between current and magnetic strength.
A current is produced when _______________ flow in a circuit.
protons
neutrons
electrons
nucleons
What is/are the difference(s) between a magnet and an electromagnet?
An electromagnet can be turned on/off.
A magnet can be turned off.
An electromagnet is stronger.
A _______________ is a current-carrying coil of wire with many loops.
magnet
electromagnet
solenoid
compass
How can a magnet be used to produce an electric current?
Hold a magnet next to a piece of wire.
Wrap wire around a magnet.
Spin the magnet around inside a coil of wire.
A _____________ transforms mechanical energy into electrical energy.
generator
electromagnet
circuit
magnetic field
The relationship between electricity and magnetism is called
solenoid
transformer
electromagnetism
electromagnet
What happens when an electric current flow through a wire
The wire begins to spin
Nothing happens
A field of gravity is created around the wire
A magnetic field is created around the wire
A (a) is a current-carrying coil of wire with many loops.
What does the electricity flow through
Battery
Wires
Metal Rod
Paper Clips
