P1 Topic 6 - Energy And The Future

Question 0

How do you calculate the efficiency of a device?

Answer 0

Efficiency = (Useful energy output / Total energy input) x 100%

Question 1

What are the nine types of energy?

Answer 1

Electrical energy
Light energy
Sound energy
Kinetic energy
Nuclear energy
Thermal energy
Gravitational potential energy
Elastic potential energy
Chemical energy