P1-Energy Flashcards
1
Q
What are the 8 energy stores
A
Chemical, Kinetic, Gravitational potential, Elastic potential, Thermal, Magnetic, Electrostatic, Nuclear
2
Q
What are the 4 energy pathways
A
Electrical, Mechanical, Heat, Radiation
3
Q
kinetic energy=
A
1/2 Mass X Velocity^2
4
Q
Gravitational Potential Energy
A
MassGravitational field strengthHeight
5
Q
Elastic potential energy=
A
1/2 Spring constant*Extension^2
6
Q
What is specific heat capacity
A
How much energy is needed to change the temperature of a material
7
Q
Work done=
A
Force*distance
8
Q
Energy transferred=
A
Charge flow*Potential difference
9
Q
Power=
A
Energy transferred/time
or
Work done/time
10
Q
How is thermal energy transferred
A
Solids: Convection
Fluids: Conduction and convection
11
Q
Efficiency=
A
Useful output/Total input
