Potential and Kinetic Energy Recap

All systems need an input of energy to do ________

• things

• movement

• work

• nothing

Energy can not be ____________ or destroyed

Select all non-renewable energy sources

• wind

• coal

• nuclear (Uranium)

• natural gas

Non-renewable energy sources are also known as ______________ fuels

In your opinion, what is the most viable source of renewable energy for South Africa?

• Hydroelectricity

• Solar power

• Wind power

• Biomass

The unit of measurement for Energy is __________

• Watts (W)

• Joules (J)

• Newtons (N)

• Grams (g)

Select all examples of potential energy

• stretched elastic band

• Compressed spring

• an uneaten apple

• camp fire

Another name for kinetic energy is ___________ energy

What are the three types of energies present in any system, in the correct order?

• process; input; machine

• input; output; process

• input; machine; output

• input; process; output

The first law of thermodynamics is also known as The Law of Energy ________________