EOY 10 Mock Equations Needed Learnt Flashcards
1
Q
Kinetic energy =
A
1/2 x mass x speed ^2
2
Q
Gravitational potential energy=
A
mass x Gravitational field strength x height
3
Q
Power = (2 answers)
A
Work done / time taken Or energy transferred / time taken
4
Q
Efficiency = (2 answers)
A
useful energy output / total energy input. Or. useful power output / total power input.
5
Q
Density =
A
Mass / volume
6
Q
Weight=
A
Mass x gravitational field strength
7
Q
Work done=
A
Force x distance ( moved along the line of action of the force)
8
Q
Force=
A
Spring constant x extension
9
Q
Distance travelled =
A
Speed x time
10
Q
Acceleration = (2answers)
A
Change in velocity / time taken. Or. Final velocity - initial velocity / time taken
11
Q
Resultant force =
A
Mass x acceleration
12
Q
Momentum =
A
Mass x velocity
