Term 2 Equations Flashcards
1
Q
Pressure in solids and the unit
A
P=Force/Area N/M^2 or Pa
2
Q
Pressure in liquids and the unit
A
P= DensityGravityHeight Pa
3
Q
Atmospheric pressure at sea level
A
About 100 KPa
4
Q
Kinetic energy
A
(Mass*Velocity^2)/2
5
Q
Gravitational potential energy
A
MassGravityHeight or Weight*Height
6
Q
Useful Efficiency
A
Efficiency= Useful energy output/ Total energy input
7
Q
What is the unit of wavelength
A
Lambda
8
Q
The formula for velocity in waves
A
Velocity= frequency*wavelength
9
Q
The formula for frequency
A
f=1/Time
10
Q
Amount of energy transferred= …?
A
Work done
11
Q
Work done unit
A
J
12
Q
Work done formula and unit
A
Work done= Force*Distance J
13
Q
Unit of power
A
Watts W
14
Q
The formula for power and the unit
A
Power= Workdone/Time taken
15
Q
How many Watts is 1 Kilowatt?
A
1000 watts
