Formulas Flashcards
What is the formula for work?
Work = force * distance moved in the direction of applied force.
How do you figure out kinetic energy?
KE = 1/2 * mass * velocity²
How do you find out GPE (Gravitational Potential Energy)?
GPE = mass * gravitational field strength * height
What is the formula for power?
Power = work done / time taken
P = E/T
What is the formula for a “moment”?
Moment = force (N) * perpendicular distance from pivot (m)
What does λ mean?
It means wavelength. Greek letter for lambda
What is the formula wavelength (λ )?
λ = velocity / frequency
What is the formula for time period?
Time period = 1/ Frequency
What is the formula for distance?
Distance = speed * time
What is the formula for acceleration?
acceleration = final velocity - initial velocity
/ time
What is the formula for force?
Force = mass * acceleration
What is the speed of sound in air?
330 - 343 m/s
What is the speed of light?
3 * 10⁸ m/s
What is the formula for energy?
E = MC²
Energy = Mass * Speed of light⁸
What is the formula for efficiency?
Efficiency = useful power out / total power in