Physic equations

What is the equation for momentum?

p=mv or ma
What is the equation for energy?

E=Pt
What is this equation used for?
P=F⁄A

Pressure
What is this equation used for?
M=fd

Moment of a force
What is the equation for mechanical advantage?
- MA=output
- input
What are the equations of motion?
- v= u+at
- s= ½(u+v)t
- s=ut +½at²
- v²= u² +2as
What are the equations for kinetic and potential energy?
- E_K=½mv²
- E_P= mgh
What is the equation for density?

density(rho)=mass⁄Volume
What is hookes law and what are the units and symbols?
- F=ke
- F= force(N)
- k= spring constant(N/m)
- e= extension of spring(m)
What is the equation for weight?

W= mg
What is this equation used for?
a=v-u/t

acceleration
What are the equations for efficiency?
- Efficiency(%)= work output
- energy input
- Efficiency_w/o% = work output
- energy input
- Efficiency= power output
- power input
What is the equation for power?
- P=work done(fd)
- time
What are the equations for relative density?
- relative density(ρ⋎) = mass of substance
- mass of water
- relative density = density of substance
- density of water
What is this equation used for?
v=m
s

velocity
What is the equation for impulse?

Ft = m∧v
What is the equation for pressure in liquid?

ρgh
What is the equation for work done?

work done = fd

Author

giavanna14

314349

Card Set

Physic equations

Description

equations used in physics

Updated

2017-03-28T23:48:06Z

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