WorksheetsElectricity & Magnetism
Total questions: 21
Worksheet time: 3hrs 52mins
What is static electricity?
a buildup of electric charge on something
a repelling between electrons
an electric circuit
a flow of protons
If a copper wire is attached to the positive and negative ends of the battery, what will be the effect?
an electrostatic discharge
an electric current
a power source
static electricity
The illustration shows an electric circuit consisting of a battery and three light bulbs.
What type of circuit is shown in the diagram?
series circuit
parallel circuit
double circuit
open circuit
The picture shows a device made of a battery, a nail, and a long piece of copper wire. It converts electrical energy into a different form of energy.
Which term describes the device in the illustration?
electric generator
electric motor
electromagnet
electric switch
Hector rubs a comb with a wool cloth. Next, he holds the comb near, but not touching, some bits of paper.
Which of the following is most likely to happen?
A spark jumps between the paper bits and the comb.
The paper bits move away from the comb.
The paper bits are not attracted to the comb.
The paper bits are attracted to the comb and stick to it.
What happens when an object with a negative charge comes near another object with a negative charge?
The objects neither repel nor attract each other.
The objects both gain electric charges.
The two objects attract each other.
The objects repel each other.
Curtis uses a wool cloth to give a balloon a negative charge. What will happen if he holds the balloon near the wall, and why?
The balloon will not stick to the wall because the negatively charged balloon is repelled by the negatively charged wall.
The balloon will stick to the wall because a negatively charged object is attracted to the negatively charged wall.
The balloon will stick to the wall beacuse the negatively charged balloon is attracted to the uncharged wall. (It pushes the negatives away and is attracted to the positives)
What happens when the north and south poles of different magnets get close to each other?
nothing
They repel each other.
They attract each other.
Which is not an advantage of electromagnets over permanent magnets?
Electromagnets can be built as big as necessary.
Electromagnets are found in nature.
The strength of an electromagnet can be controlled by the amount of current.
Electromagnets can be turned on and off.
What is the purpose of the battery in the circuit?
to slow the flow of electricity
to be a power source
to connect the components
to use electric current
Ryan has a circuit made up of a battery, a light bulb, some wires, and a metal rod as a switch. Ryan replaces the metal rod with a wooden rod. When he closes the new switch, what will Ryan most likely observe?
brighter bulb
unlit bulb
warmer bulb
flashing bulb
Clayton tries to build an electric circuit using a battery, a light bulb, a paper clip, and copper wire. The diagram shows what he builds.
Which statement best explains why the circuit would not conduct electricity
The paper clip stops the electric current.
The light bulb uses the electric current.
The circuit is not a complete loop or circle.
The circuit lacks a power source.
In the electric circuit below, light bulbs are placed at A, B, and C. When the switch is closed, all three light bulbs are lit.
What happens to light bulbs A and C if bulb B burns out?
Both bulbs A and C will stay lit.
Bulb C will go out, but bulb A will stay lit.
Bulb A will go out, but bulb C will stay lit.
Both bulbs A and C will go out.
Which is NOT a way to increase an electromagnet's strength?
flip the battery so it is in the other direction
use a stronger battery
add more wire coils
The magnetic field is strongest...
at the south pole
at the north pole
in the center
at both of the poles
Erica looked at a group of objects and classified them as conductors or insulators. She made the table below to show her results.
What object is classified incorrectly?
wodden craft sticks
silver bracelet
plastic bottle
glass bead
Which of the following items would work best to complete a circuit?
wooden toothpick
plastic straw
glass bead
metal coin
