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WorksheetsElectricity and Magnetism
Total questions: 21
Worksheet time: 12mins
An object that can attract certain metals like iron.
Repulsion
Magnet
Compass
The ends of a magnet where the force is strongest; called the north and south poles.
Magnetic field
Magnet
Magnetic pole
A path that electricity flows through.
(iciCrut)
(a)
A magnet made by running electricity through a wire wrapped around iron.
(lcrmgeEetoant)
(a)
A material (like iron) that is strongly attracted to magnets.
Ferromagnetic
Magnetic field
Lodestone
A naturally magnetic rock that was one of the first magnets people discovered.
Temporary magnet
Lodestone
Magnet
A wire wound in a circle or spiral, often used in electromagnets.
(Cilo)
(a)
A magnet made by running electricity through a wire wrapped around iron.
Motor
Generator
Electromagnet
A circuit where all parts are connected one after another.
Parallel circuit
Resistance
Series circuit
A circuit where parts are connected in separate branches, so electricity has more than one path to follow.
Series circuit
Parallel circuit
Current
One advantage to using this form of circuit is that...
current drawn from the battery remains constant regardless of the number of lights that are on.
voltage available to each light remains constant regardless of the number of lights that are on.
resistance along the circuit remains constant regardless of the number of lights that are on.
current drawn from the battery decreases as more lights are turned on.
Sal connected four light bulbs in a parallel circuit. If Sal adds another light bulb, what is true about the current in each bulb?
The current decreased when a fourth bulb was added.
The current in the four bulbs is much less than the current in three bulbs.
The current in each bulb remained the same even though another bulb was added.
The current in the fourth bulb is less than the current in the other three bulbs.
A strand of 10 lights is plugged into an outlet. How can you determine if the lights are connected in series or parallel?
Unscrew one light. If the other lights stay on, it's a series circuit.
Unplug the strand. If the first light stays on, it's a series circuit.
Unscrew one light. If the other lights turn off, it's a series circuit.
Cut the strand in half. If the plugged in half stays on, it's a series circuit.
Look at the diagram. Emily needs to complete the circuit. What two points should be connected to complete the circuit and make the bulb glow?
Points 2 and 3
Points 1 and 4
Points 2 and 4
Points 1 and 3
What happens in this circuit if one of the light bulbs is unscrewed?
The other bulb goes out.
The other bulb stays lit.
Current stops flowing in the circuit.
The current path in the circuit is broken.
When the electricity goes off as a result of a blown fuse or a flipped breaker, a(n) ____________ has been created and the electrical current is stopped.
open circuit
dead battery
parallel circuit
a blockage in the circuit
The south pole of a bar magnet will repel
a paper clip.
iron filings.
the south pole of another bar magnet.
the north pole of another bar magnet.
Which property of magnets is being shown in the picture?
Like poles and opposite poles repel.
Like poles and opposite poles attract.
Like poles repel and opposite poles attract.
Like poles attract and opposite poles repel.
How is an electromagnet different from a bar magnet?
Only a bar magnet has a magnetic field.
Only an electromagnet attracts materials made of iron.
An electromagnet is temporary and is magnetic when a current flows through a wire wrapped around the core.
A bar magnet is a temporary and is only magnetic when a
current flows through a wire wrapped around the core.
Lisa exposes an iron paper clip to a very strong magnet. She is now able to pick up other paper clips using her newly magnetized clip. What happens within the paper clip in order for it to become magnetized?
The magnet randomizes the domains within the paper clip.
Part of the strong magnet "rubs" off and joins to the paper clip.
The strong magnet aligns the magnetic domains within the paper clip.
The strong magnet creates an electric force field around the paper clip.
Describe what would happen to the arrows if this magnet were picked up and dropped numerous times.
nothing
the arrows would be removed
the arrows would point in the opposite direction
the arrows would point in a variety of directions
