Equations Flashcards
How do you calculate momentum
p=mv
Momentum = mass*velocity
How do you calculate force from momentum and time?
F = Δp/t Force = change in momentum/time
What is the formula for moment (turning effect)?
moment = force * perpendicular distance from line of action of force to pivot
How do you calculate density?
Kg/m3
G/cm3
Mass / volume
Kg or g / m3 or cm3
How do you calculate pressure from force and area?
Pressure = force / area
How do you calculate breaking force?
Breaking force = mass x acceleration
How do you calculate acceleration from time and velocity?
Acceleration=Change in velocity / change in time
a=v-u/t
How do you calculate acceleration using distance?
Final speed - initial speed / 2 * distance travelled
Where is momentum conserved?
In a closed system
How do you calculate velocity?
Velocity=Distance / time
V=s/t
How do you calculate elastic potential energy?
Stormtwoopers
How do you calculate work done?
W=Fxd
How to calculate Elastic potential energy?
Epe=1/2 Ke^2
How to calculate gravitational potential energy?
Gpe=mgh
What is Hooke’s law?
F=Ke
