equations

Question 1

mass acceleration force

Answer 1

mass x acceleration

Question 2

change in momentum time taken and force

Answer 2

force = change divided by time taken

Question 3

mass velocity momentum

Answer 3

mass x velocity

Question 4

useful energy total energy efficiency

Answer 4

useful energy divided by total energy

Question 5

power work done and distance

Answer 5

power = work done divided by distance

Question 6

ke =

Answer 6

0.5mass x speed squared

Question 7

mass density volume

Answer 7

mass divided by volume

Question 8

pressure =

Answer 8

pressure = force divided by area

Question 9

time speed distance =

Answer 9

distance divided by time

Question 10

energy current

Answer 10

current x voltage x time

Question 11

gpe =

Answer 11

mass x g x height

Question 12

voltage =

Answer 12

current x resistance

Question 13

energy charge voltage

Answer 13

charge x voltage

Question 14

current time charge =

Answer 14

current x time

Question 15

energy transferred charge current time

Answer 15

charge x current x time

Question 16

What is the equation which links orbital speed, radius of orbit and time period?

Answer 16

orbital speed = 2π x radius / time period

v = 2πr / T

Question 17

acceleration change in velocity time take

Answer 17

accerlaration = change in volcity divided by time taken

Question 18

mass gravitational field strength weight

Answer 18

weight = mass x gravitational field strength

Question 19

force moment distance

Answer 19

moment = force x distance

Question 20

energy for specific heat capacity

Answer 20

specify heat capacity x mass x change in temp

Question 21

frequency speed wavelength

Answer 21

speed = frequency x wavelength

Question 22

current voltage power

Answer 22

power = current x voltage