Formulas Flashcards
(10 cards)
1
Q
Distance travelled =
A
Distance travelled = average speed * time
( meters = m / s * m / s )
2
Q
Acceleration =
A
Acceleration = (final velocity- initial velocity) / time
( m / s^2 = ( m / s - m / s) / s )
3
Q
Force =
A
Force = mass * acceleration
( N = kg * m / s^2 )
4
Q
Weight =
A
Weight = mass * g ( gravitational
field strength)
( N = kg * N/kg )
5
Q
Efficiency =
A
Efficiency = useful energy out / total energy in
(Joules, J )
6
Q
GPE =
A
GPE = mass * g * h( distance in m)
( J = kg * N * m )
7
Q
KE =
A
KE = 1/2 * mass * velocity^2
( J = 1/2 * kg * m / s )
8
Q
p ( momentum ) =
A
p ( momentum ) = mass * velocity
(kg m / s = kg * m / s)
9
Q
Wave velocity =
A
Wave velocity = frequency * wavelength
( m / s = Hz * m )
10
Q
Wave velocity =
( with time ‘
A
Wave velocity = distance / time
( m / s = m / s )
