formulas Flashcards
1
Q
force
A
force= mass x acceleration
2
Q
weight
A
weight= mass x gravity
3
Q
velocity
A
velocity (speed) = distance/ time
4
Q
acceleration
A
change in velocity/ change in time
5
Q
density
A
density= mass/ volume
6
Q
gas laws
A
1/ volume
OR
p1v1=p2v2
7
Q
power
A
power= work done/ time taken
OR
change in energy/ time
8
Q
pressure
A
pressure= force/ area
9
Q
pressure in liquids
A
pressure= density x gravity x depth
10
Q
current
A
current= charge/ time
11
Q
potential difference
A
p.d.= work done/ charge
12
Q
e.m.f.
A
e.m.f.= work done/ charge
13
Q
voltage
A
voltage= current x resistance
14
Q
resistance
A
resistance= voltage/ current
15
Q
power
(elec.)
A
power= current x voltage
