forces - momentum (whatyouneed2know) Flashcards
definitions, measured by
1
Q
momentum meaning
A
the amount of motion a moving object has
2
Q
there’s a change in momentum when..
A
a force acts on an object that is moving or is able to
3
Q
equation for momentum (rearranged too!)
A
p = mv
momentum = mass x velocity
mass = momentum/
velocity
velocity = momentum/
mass
4
Q
momentum is measured in ___ cos mass is measured in ___ and velocity is measured in ___
A
momentum - kg m/s
mass - kg
velocity - m/s
5
Q
negative velocity is when..
A
an object is travelling backwards
