Energy Flashcards
1
Q
What is the principle of conservation of energy
A
Energy cannot be created or destroyed, it is always conserved.
2
Q
Types of energy
A
- Kinetic
- Potential
- Mechanical
- Chemical
- Heat
- Sound
- Light
3
Q
Kinetic Energy
A
energy a body has due to it’s motion
4
Q
Potential energy
A
energy a body has due to it’s position or condition
5
Q
Mechanical energy
A
Kinetic Energy and Potential Energy
6
Q
Heat energy
A
energy stored in heat
7
Q
Light energy
A
Energy stored in light
8
Q
Sound energy
A
Energy stored in sounds
9
Q
Equation for kinetic energy
A
½ x m x v²
10
Q
Unit for kinetic energy
A
Joules (J) (as long has m= kg and v= m/s)
11
Q
Equation for GPE
A
m x g x height (vertical)
12
Q
Thermal energy
A
Energy of heat molecules in the body
13
Q
Equation for mechanical energy
A
K.e+ P.e
14
Q
Chemical Energy
A
energy stored (foods) which can be released by chemical reactions
