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Flashcards in Equations Deck (16)
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1
Q

How to calculate weight?

A

Mass x gravitational field strength

2
Q

How to calculate work done?

A

force x distance

3
Q

How to calculate force applied to a spring?

A

spring constant x extension

4
Q

How to calculate pressure?

A

force normal to a surface / area of that surface

5
Q

How to calculate speed?

A

distance / time

6
Q

How to calculate acceleration?

A

change in velocity/ time taken

7
Q

How to calculate resultant force?

A

Mass x acceleration

8
Q

How to calculate power?

A

energy transferred / time

9
Q

How to calulate efficiency?

A

useful output/ total power input

10
Q

How to calculate wave speed?

A

frequency x wave length

11
Q

How to calculate charge flow?

A

current x time

12
Q

How to calculate potential difference?

A

current x resistance or power / curren

13
Q

How to calculate density?

A

Mass/volume

14
Q

How to calculate power usingcurret?

A

(current)2 x resistance

15
Q

How to calculate energy transferred?

A

power x time or charge flow x potential difference

16
Q

How to calculate kinetic energy?

A

0.5 x mass x (speed)2