Phyisics Equations

Question 1

Work

Answer 1

Force x distance

Question 2

Change in objects gravitationa potential energy store

Answer 2

Weight x change in height

Question 3

Weight

Answer 3

Mass x garvitational feild strenght

Question 4

Kenetic energy

Answer 4

1/2 x mass x velocity^2

Question 5

Power(w)

Answer 5

Work done / time (s)

Question 6

Efficiency

Answer 6

Useful energy output/toatal energy

Question 7

Speed

Answer 7

Distance/time

Question 8

Force

Answer 8

Mass x acceleration

Question 9

Moment

Answer 9

Force x distance

Question 10

Acceleration: SUVAT

Answer 10

S= displacement U= initial velocity V=final velocity A=acceleration T=time

Question 11

Final velocity(V)

Answer 11

Displacement (s)/ time(t)

Question 12

Acceleration(A)

Answer 12

Final velocity(v)-initial velocity(u)/ time(t)

Question 13

V^2-U^2=

Answer 13

2as

Question 14

Weight

Answer 14

Mass x gravitational feild strenght

Question 15

Stopping distance

Answer 15

Thinking distance+braking distance

Question 16

Acceleration/deceleration

Answer 16

Final velocity squared-initial velocity squared/ 2 x displacement

Question 17

Momentum(p)

Answer 17

Mass x velocity

Question 18

Impact force

Answer 18

Force=mass x change in velocity / time taken

Question 19

Hookes law

Answer 19

Force=spring constant x extension

Question 20

Pressure

Answer 20

Force/area

Question 21

Mass in liquid

Answer 21

Volume/density

Question 22

Resaultant force(newtons seccond law)

Answer 22

Mass(kg) x acceleration(m/s^2)