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WorksheetsChapter 13: Electricity and Magnetism
Total questions: 12
Worksheet time: 6mins
What causes static electricity?
only an object losing electrons
only an object gaining electrons
when positive and negative charges no longer balance
A ___________ charged object __________ a positively charged object.
neutrally / repels
positively / repels
negatively / repels
Which of the following would be a good conductor for a closed circuit?
wood
copper
rubber
Where is a magnetic field the strongest?
at both poles
in the middle
at the south-seeking pole
A material that conducts electric current poorly is called __________.
a circuit
a charge
an insulator
What would happen to the other bulbs in the circuit if one light bulb burns out?
the other light bulbs will remain on
the other light bulbs will go out
the other light bulbs will be dimmer
Why does a compass needle point in a north-south direction?
The needle reacts to Earth's magnetic poles.
The needle forms an electromagnet with Earth's poles.
The needle is lightweight, so it always spins to the south.
How can the strength of an electromagnet be increased?
by using less current
by using a smaller magnet
by using more turns in the metal coil
What did Michael Faraday do when he discovered that changing a magnetic field created an electric current in a wire?
He told no one of his investigation.
He did not think he had discovered anything.
He shared his investigation with other scientists.
What is produced when a coiled wire is spun around a magnet?
electrical energy
magnetic energy
mechanical energy
When you break a magnet in half ______________.
you have 2 magnets, each with north and south-seeking poles.
you have 2 magnets, one with a south-seeking pole and one with a north-seeking poles
the magnet no longer works
What type of circuits are used in homes, schools, and other buildings?
series
parallel
open
