Energy Flashcards
1
Q
What is energy measured in?
A
Joules (J)
2
Q
What does oil come from (tiny sea animals OR plants)?
A
Oil is made from tiny sea animals that lived millions of years ago.
3
Q
What is the formula for power?
A
power (W) = Energy (J) / Time (s)
4
Q
How do you calculate the cost for electricity?
A
Cost = power (kW) x time (hrs) x price (per kWh)
5
Q
What is conduction?
A
Conduction is when particles transfer energy by colliding when they vibrate.
6
Q
Are metals good thermal conductors? Why or why not?
A
Yes, metals are good thermal conductors because they contain electrons that are free to move.
7
Q
What does GPE stand for?
A
Gravitational Potential Energy.
