P2 Flashcards
1
Q
Distance (m)
A
speed (m/s) x time (s)
2
Q
Acceleration (m/s2)
A
change in velocity (m/s) / time(s)
3
Q
Equation of motion
A
final velocity (m/s) - initial velocity (m/s) = 2 x acceleration (m/s2) x distance (m)
4
Q
Force (N)
A
mass (kg) x acceleration (m/s2)
5
Q
momentum (kg m/s)
A
mass (kg) x velocity (m/s)
6
Q
momentum in a collision
A
total momentum before = total momentum after
7
Q
work done (J)
A
force (N) x distance (m)
8
Q
force exerted by spring (N)
A
spring constant (N/m) x extension (m)
9
Q
energy transferred in spring (J)
A
0.5 x spring constant (N/m) x extension2 (m)
10
Q
Gravitational potential energy (J)
A
mass (kg) x gfs x height (m)
11
Q
Weight
A
mass x g
12
Q
Mechanical advantage
A
load / effort
