paper 2 : equations Flashcards Preview

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Flashcards in paper 2 : equations Deck (10)
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1

how do you calculate weight

weight = mass x gravitational field strength (W=mg)

2

how do you calculate work done

work done = force x distance along the line of action of the force (W=Fs)

3

how do you calculate the moment of a force

moment of a force = force x distance from normal to direction of force (M=Fd)

4

how do you calculate pressure

pressure = force normal to a surface / area of surface (p=F/A)

5

how do you calculate distance

distance = speed x time (s=vt)

6

how do calculate acceleration

acceleration = change in velocity / time taken (a=Δv/t)

7

how do you calculate resultant force

resultant force = mass x acceleration (F=ma)

8

how do you calculate wave speed

wave speed = frequency x wavelength (v=fλ)

9

how do you calculate the force applied to a spring

force applied to a spring = spring constant x extension
F=ke

10

what is spring constant measured in

spring constant is measured in metres