physics Flashcards
1
Q
momentum
A
how hard it is for an object to stop
momentum=mass x velocity
2
Q
distance speed time
A
d=s•t
3
Q
acceleration
A
a=v-u/t
4
Q
newtons 1st law
A
an object will remain at rest or in uniform motion unless acted upon by an external force
‘inertia’
5
Q
velocity
A
v=displacement/time
6
Q
stopping distance
A
reaction distance + breaking distance
7
Q
reaction distance
A
velocity x time
8
Q
displacement
A
straight line distance and direction between finishing and starting point
9
Q
km/hr to m/s
A
km/hr to m/s: divide by 3.6
m/s to km/hr: multiply by 3.6
