Equations - mock

Question 1

equation between average speed, distance moved and time taken

Answer 1

average speed = distance move / time taken

Question 2

equation between acceleration, change in velocity and time taken

Answer 2

acceleration = change in velocity / time taken

Question 3

equation between unbalanced force, mass and acceleration

Answer 3

force = mass x acceleration

Question 4

equation between weight, mass and gravitational field strength

Answer 4

weight = mass x gravitational field strength

Question 5

equation between power, current and voltage

Answer 5

power = current x voltage

Question 6

equation between energy transferred, current, voltage and time

Answer 6

energy transferred = current x voltage x time

Question 7

equation between voltage, current and resistance

Answer 7

voltage = current x resistance

Question 8

equation between voltage, current and resistance

Answer 8

voltage = current x resistance

Question 9

equation between charge, current and time

Answer 9

charge = current x time

Question 10

equation between energy transferred, charge and voltage

Answer 10

energy transferred = charge x voltage

Question 11

equation between speed, frequency and wavelength of a wave

Answer 11

wave speed = frequency x wavelength

Question 12

equation between frequency and time period

Answer 12

frequency = 1 / time period

Question 13

equation between refractive index, angle of incidence and angle of refraction

Answer 13

refractive index = sin i / sin r

Question 14

equation between critical angle and refractive index

Answer 14

sin c = 1 / refractive index

Question 15

what is the relationship between input (primary) and output (secondary) voltages and the turns ratio for a transformer

Answer 15

input (primary) voltage / output (secondary) voltage = primary turns / secondary turns

Question 16

equation between input power and output power

Answer 16

input power = output power (for 100% efficiency)