Conservation of Energy revision cards

Question 1

Name the ten types of Energy

Answer 1

Light, Sound, Thermal, Electrical, Kinetic, Gravitational, Nuclear, Magnetic, Strain/Elastic potential, Chemical

Question 2

What is the Law of conservation of energy?

Answer 2

Energy cannot be created or destroyed, only transferred from one object to another or transformed from one type to another.

Question 3

What does ‘Energy is dissipated’ mean?

Answer 3

Energy spreads out into the surroundings/air and is wasted or can no longer be used.

Question 4

What is the equation for efficiency?

Answer 4

Useful energy out / total energy in

Question 5

Insulation reduces the three types of heat transfer - name them.

Answer 5

Conduction, convection and radiation

Question 6

What is the equation for gravitational potential energy?

Answer 6

ΔGPE = m x g x Δh

Question 7

What is the equation for kinetic energy?

Answer 7

KE = 1/2 x m x v2

Question 8

Fossil fuels and nuclear fuels are both examples of which type of resource?

Answer 8

Non-renewable

Question 9

Name 4 non renewable energy resources.

Answer 9

Solar cells, wind turbines, hydroelectricity, tidal power, (biofuels).