Physics - Mechanics Flashcards
1
Q
Change in velocity =
A
Final velocity - initial velocity (TAKE DIRECTIONS INTO ACCOUNT)
2
Q
When is a ball at the top of its bounce?
A
When the velocity is 0 (at the top of the bounce velocity is 0)
3
Q
Average acceleration?
A
(Final velocity-initial velocity)/time taken
4
Q
3 kinematic equations
A
v = u + at
s = 0.5(u+v)t
v^2 - u^2 = 2as
5
Q
Magnitude of upthrust depends on
A
Weight of fluid displaced
6
Q
Non contact forces
A
Weight, magnetic forces and electrostatic force
7
Q
Work =
A
Force and distance
8
Q
W =
A
mg where g is = 10
