WorksheetsUnit 5 Electricity and Magnetism Review
Total questions: 14
Worksheet time: 8mins
Which material would best conduct electricity?
Copper Wire
Semiconductor
Glass Jar
Plastic Fork
Static electricity occurs when electrons transfer from one object to another. This is usually caused by:
Water
Friction
Voltage
Current
A student rubbed a balloon against a wool sweater. Afterwards, the balloon stuck to the sweater. What happened to cause this?
The balloon gave the sweater a neutral charge.
The balloon protons from the sweater
The balloon removed electrons from the sweater.
The balloon gave the sweater a negative charge.
Which type of circuit has more than one loop, and when one light goes out, the others stay on.
open circuit
series circuit
parallel circuit
Why are the lights so dim in B?
It is a series circuit, all lightbulbs are sharing electricity.
It is a parallel circuit, all lightbulbs have their own path for electricity.
There is a gap/break in the circuit.
The battery has less voltage.
The crane in the picture is able to pick up the car without using a "claw." However, when the electricity is cut, the car will drop. What is used to pick up the car?
Resistor
Generator
Diode
Electromagnet
A device that converts electrical energy to mechanical energy in order to do work.
Motor
Generator
Resistor
Transistor
A device that converts mechanical energy to electrical energy.
Motor
Generator
Resistor
Transistor
Which electromagnet is stronger?
#1 because the wire is coiled around the bar fewer times.
#2 because the wire is coiled around the bar more times.
#1 because it uses a smaller battery.
#2 because it uses a bigger battery.
Which electromagnet is stronger?
#1 because the wire is coiled around the bar fewer times.
#2 because the wire is coiled around the bar more times.
#1 because it uses a smaller battery.
#2 because it uses a bigger battery.
The pencil in this picture is levitating (floating). The round, black objects surrounding it are magnets. How is the pencil able to remain suspended in the air?
The magnets are attracting each other.
The magnets are repelling each other.
The magnets are broken.
The magnets produce electricity.
A semiconductor has qualities of both:
conductors and insulators
electricity and magnetism
voltage and resistance
The circuit on the right has less current flowing through it because it contains a:
transistor
LED
diode
resistor
