Key words
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Degrees Celsius | Unit for measuring temperature
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| Evaporate | When a liquid turns into a gas
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| Internal energy | Energy stored in the movement of particles. Also called thermal energy.
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| Joule | Unit for measuring energy
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| Temperature | How hot something is
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| Thermal energy | See internal energy
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| Absorb | To soak up or take in
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| Conduction | Transferring energy touching
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| Convection | Transferring energy by circling currents in fluids and gases
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| Density | The amount of mass that one cubic centimetre of a substance has
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| Emit | To give out
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| Fluid | A gas or a liquid
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| Infrared radiation | Transferring energy by waves through space
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| Medium | Any substance through which something travels
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| Radiation | Electromagnetic waves that travel through space. Includes light, gamma, radio, infrared, X-ray, microwave and ultraviolet waves.
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| Reflect | To bounce off a surface
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| Thermal conductor | Allows heat to be transferred through it
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| Thermal imager | A device that takes pictures of infrared radiation instead of light radiation
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| Thermal insulator | Does not allow heat to be transferred through it
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| Solar cell | A material that directly converts light radiation to electrical energy
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| Solar panel | A material that transfers the Sun’s infrared radiation to heat water
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| Appliance | A household instrument powered by electricity
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| Efficiency | A way to describe how much energy is wasted
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| Kilowatt | A unit for measuring power kW 1000W = 1kW
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| Watt | A unit for measuring power 1W = 1J per second
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| Power rating | The number of joules of energy an appliance uses every second
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| Sankey diagram | A diagram showing energy transfers where the width of each arrow is proportional to the amount of energy it represents
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| Kilowatt-hour | The amount of energy used by a 1kW appliance in one hour. 1kW = 3600kJ.
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| Payback time | The time it takes to get the money back that you spent on an energy-saving change
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
andrewweng0406
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