Energy Flashcards
1
Q
ability to do work
A
energy
2
Q
1 cal = __ J
1 kWh = __ J
A
- 184
3. 6 x 10^6
3
Q
energy at rest
A
potential energy
4
Q
when an obj is raised to certain height, energy is stored in obj
A
gravitational potential energy
5
Q
gravitational potential energy formulas
A
(mass of obj)(9.8 m/s^2)(height), (weight)(height)
6
Q
unit: kg*m^2/s^2
A
joule
7
Q
amount of matter
A
mass
8
Q
relative to gravity
A
weight
9
Q
energy stored in spring/any elastic material
A
elastic potential energy
10
Q
Ue formula
A
(1/2)(spring constant)(distance)^2
11
Q
energy in moving obj
A
kinetic energy
12
Q
kinetic formula
A
(1/2)(mass)(speed)^2
