3.4.1.8 Conservation of energy Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

What is the principle of conservation of energy?

A

Energy cannot be created or destroyed, it can only be transferred from one form to another, but the total amount of energy in a closed system will not change.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the formula for efficiency in terms of energy?

A

eff. = useful energy output / energy input

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the formula for energy in terms of power?

A

eff. = useful output power/ input power

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the formula for kinetic energy?

A

E_k = 1/2 mv^2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the formula for gpe?

A

deltaE_p = mgdeltah

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the formula for elastic potential energy?

A

E = 1/2 k (deltaL)^2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly