Share NS T4 Exam Grade 7
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Name 3 examples of non-renewable energy sources.
Coal, oil, gas, uranium, nuclear fuels
What is the unit of measurement of potential energy?
Joule
A pot of soup that is heated on a stove is an example of a... system.
Thermal
What energies are wasted in a drilling machine?
Heat and sound energy
A small device that converts mechanical kinetic energy into electrical energy.
Dynamo
Energy from moving water.
Hydroelectricity
A fuel that formed underground from living material millions of years ago.
Fossil fuels
Energy that causes a change in motion.
Kinetic energy
Keep items cold because they slow down heat transfer from the environment.
Heat insulator
Energy that is stored in a system.
Potential energy
Millions of years ago, plants in swamps absorbed ...energy from the Sun.
Light
There was a lot of pressure on the dead matter and it changed into ...
Peat
Peat experience more pressure and moves closer to the center of the Earth. The ... changes the peat into fossil fuels.
Heat
Name 3 heat transfer methods.
Conduction, convection, radiation.
Give an example of radiation.
Sun shining, Any good answer.
Give an example of convection.
An air conditioner that cools or heats up a room. A fire that heats a room. Any good answer.
