Physics

Question 1

Speed

Answer 1

Total distance/total time

Question 2

Velocity

Answer 2

Total distance/total time

Question 3

Acceleration

Answer 3

Change in velocity/time taken

Question 4

Speed on distance time graph

Answer 4

Rise/run

Question 5

Distance on speed time graph

Answer 5

Area beneath the graph

Question 6

Weight

Answer 6

Mass x 10

Question 7

Force (N)

Answer 7

Mass(kg) x acceleration (m/s)

Question 8

Mass

Answer 8

Weight/10

Question 9

Acceleration in the context of forces

Answer 9

Forcé /mass

Question 10

Acceleration in the context of forces

Answer 10

Forcé /mass

Question 11

Hooke’s law

Answer 11

Force = k x
K: spring constant
X: extension

Question 12

Moment (Nm)

Answer 12

Force x distance

Question 13

Pressure (Pa)

Answer 13

Force/area

Question 14

Work (J)

Answer 14

Force x distance

Question 15

Kinetic energy (KE)

Answer 15

1/2 mass x velocity^2

Question 16

Gravitational potential energy (G.P.E)

Answer 16

mass x gravity x height

Question 17

Energy input/output

Answer 17

Efficiency= useful energy output/ energy input x100%

Question 18

Power input/output

Answer 18

Efficiency= useful power output/ power input x100%

Question 19

Power

Answer 19

Work/time

Question 20

Temperature

Answer 20

Pressure x volume

Question 21

Wave speed

Answer 21

Frequency x wavelength

Question 22

Refractive index

Answer 22

Sin i/ sin r

Question 23

Electric current

Answer 23

Charge/time

Question 24

Current

Answer 24

Voltage/ resistance

Question 25

Resistance

Answer 25

Voltage/ current

Question 26

Combined resistance

Answer 26

1/total resistance= 1/R1 + 1/R2 + 1/R3

Question 27

Electrical power

Answer 27

Current x voltage

Question 28

Energy

Answer 28

Current x voltage x time

Question 29

Density

Answer 29

Mass/volume