Mathematics
Maths can be fun and it is an extremely important skill for a scientist, designer or engineer. The summaries on this page will help you get a 'leg-up'.
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Area and Volume
Area and Volume
With these formulae you are able to make reasonably accurate estimates for compound shapes.
Frequently in the GCSE Engineering exam paper, you are required to find the area, volume or even weight of material removed from a manufactured object.
This is often required so that we can estimate the cost of the material and how much waste there is.
It cannot be stressed how important knowing these basic formulae is.
Area and volume of common shapes.pngPythagoras' Theorem
Pythagoras' Theorem
"The sum of the square of the hypotenuse (c) is equal to the sum of the squares of the other two sides" (the same as both of the other sides a and b squared and added together).
This formula can be reorganised so that any one of the sides become the 'subject' (the value you are trying to find).
This formula can be used for all sorts of calculations such as trying to estimate the height of an object from a distance away.
Ohms Law
Ohms Law
Ohms law is used to describe the relationship between potential difference (voltage), electrical flow (current) and the force trying to slow the electricity down (resistance).
Remember :
Voltage is measured in volts, V.
Current is measured in amperes or amps, A (for short).
Power is measured in watts, W.
Resistance is measured in ohms, Ω .
Maths in fun website
Maths in fun website
An enjoyable way to learn. Click here to view in a new window.
Some useful quick volume calculators
Some useful quick volume calculators
Do not use these as a substitute for actually learning the formulae!
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