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Year 12 Ratio and Ra
Term | Definition |
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rate | a comparison of different quantities in definite order |
unitary method | a technique used to solve a problem that involves finding one unit of an amount by division |
heart rate | the number of beats per minute |
energy rate | energy is the rate of power per unit of time (kilowatt hour kWh). Running cost of of the appliance is calculated by multiplying the energy consumption by the electricity charge. |
fuel consumption | the number of litres of fuel a motor vehicle uses to travel 100 kilometres |
ratio | a number used to compare amounts of the same units in a definite order such 3:4 |
scale drawing | a drawing that represents the actual object |
scale factor | the ratio of the size of the drawing size of the object |
plan | a view of an object from the top |
elevation | a view of an object from the side such as a front elevation or side elevation |
perimeter | the distance around the outside of an object |
area | the amount of surface enclosed by the boundaries of the shape |
speed | distance travelled divided by time taken |
power | the rate at which energy is generated or consumed |
energy rating label | a label which allows consumers to compare the energy efficiency of similar products |
equivalent ratios | ratios obtained by multiplying or dividing by the same number |