12/17- Final Review Day 2

Flashcard
•
Physics
•
9th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is kinetic energy?
Back
Kinetic energy is the energy an object possesses due to its motion. It is calculated using the formula KE = 1/2 mv², where m is mass and v is velocity.
2.
FLASHCARD QUESTION
Front
Give an example of kinetic energy.
Back
A moving car is an example of kinetic energy.
3.
FLASHCARD QUESTION
Front
How do you calculate power in an electrical circuit?
Back
Power (P) is calculated using the formula P = IV, where I is current in amperes and V is voltage in volts.
4.
FLASHCARD QUESTION
Front
What is the power drawn by a 15 amp load on a 100v supply?
Back
1,500 watts.
5.
FLASHCARD QUESTION
Front
What is an electromagnet?
Back
An electromagnet is a type of magnet in which the magnetic field is produced by an electric current.
6.
FLASHCARD QUESTION
Front
What is one advantage of electromagnets?
Back
They can be switched on or off.
7.
FLASHCARD QUESTION
Front
What happens when the direction of a magnet is changed when inserted into a loop of wire?
Back
The voltage will be the same amount, but in the opposite direction.
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