Review Game Zone
Flash Cards
(current)
Games
Teachers
Search
Electromagnet Study Guide
Test Description: Study guide for middle school science- electromagnet related.
Instructions: Answer all questions to get your test result.
1) What is an electromagnet?
A
A current-carrying wire wrapped around an iron core.
B
A magnet attached to an electrical wire.
C
A magnet attached to an electrical appliance.
D
A magnet that sticks to a light switch.
2) What supplies to you need to make an electromagnet?
A
Electrical tape
B
All of the above.
C
A battery.
D
Copper wire.
3) What is kinetic energy?
A
The amount of heat an object creates.
B
The amount of light an object produces.
C
The energy that an object will have if put in motion.
D
The energy that an object in motion has.
4) What is a motor?
A
Any devise that converts thermal energy to potential energy.
B
Any devise that converts potential energy to kinetic energy.
C
Any devise that converts solar energy to thermal energy.
D
Any devise that converts electric energy to kinetic energy.
5) What protects the Earth from most of the Sun's charged particles?
A
The magnetosphere.
B
The atmosphere.
C
The stratosphere.
D
The ozone layer.
6) What does a generator do?
A
Uses electritcity to make light.
B
Uses coal to create energy.
C
Uses solar pwer to create hot water.
D
Uses a magnetic field to turn motion into electricity.
7) What type of current changes from positive to negative 60 times each second?
A
Alternative current.
B
Different current
C
Alternating current
D
Direct current.
8) What produces most of the electric energy used all over the world?
A
Electric generators
B
Solar power
C
Nuclear power
D
Fire wood
9) What does a transformer do?
A
Chages the voltage of a device with little loss of energy.
B
Changes the strength of the magnetic field.
C
Changes the type of energy being produced.
D
Changes the voltage of a device with a lot of energy lost.
10) Why does a superconductor allow electricity to pass through it without heat being produced?
A
The superconductor resists the flow of electricity.
B
Electricity does not produce heat,
C
The electrons in the electric current are no longer charged as they pass through the superconductor.
D
The electrons in the electrical current do not collide with the atoms in the superconductor.
*select an answer for all questions
Check Results & Get Answers
Play Games with the Questions Above
Teachers: Create FREE classroom games with your questions
Click for more info!
©2007-2024
ReviewGameZone.com
|
About
|
Privacy
|
Contact
|
Terms
|
Site Map
WAIT! Find what you needed?
×
Still Looking for the Answers?
Have Another Question?
Play a Review Game with These Questions?
Want to Make Your Own Test Like This One?