Equations Paper 3 Flashcards
1
Q
Density
A
Mass / volume
2
Q
Change in energy
A
Change in energy = m * SHC * change in temperature
Change in energy = m * SLH
3
Q
Constant
A
Constant= pressure * volume
Pressure and volume are inversely proportional
4
Q
Pressure in a liquid
A
Pressure = height * density * gravity force
5
Q
Pressure (Pa)
A
Force (N) / area (cm2)
6
Q
How to convert from mph to m/s
A
- 1609/3600
7
Q
Final velocity and initial velocity
A
v2 - u2 = 2 * acceleration * distance
8
Q
Kinetic energy
A
KE = 0.5 * mass * velocity2
9
Q
Potential energy (J)
A
PE= m * g * h
10
Q
Force
A
Force = mass * acceleration
11
Q
Momentum (kg cm3)
A
Momentum = mass * velocity
12
Q
Power (Pa)
A
Power = Work done / time
13
Q
Work done
A
WD = force * distance
14
Q
Kinetic energy for a spring
A
KE = 0.5 * spring constant * extension2
15
Q
Mechanical advantage
A
Mechanical advantage = Load / effort
