Physics year 10 Equations

The equation for average speed is ...

• speed = time / distance

• speed = distance / time

• speed = velocity x time

• speed = frequency x time

The equation for wave velocity is ...

• velocity = distance/frequency

• velocity = frequency / wavelength

• velocity = frequency x wavelength

• velocity = 1 / time period

The equation for momentum is

• m = mv

• m = dv

• p = mv

• p = m/v

The equation for moments is

• moment = force x perpendicular distance

• moment = force x vertical distance

• moment = force / perpendicular distance

• moment = force / vertical distance

The equation for acceleration is ...

• a = (u-v) / t

• a = (u-v) x t

• a = (u-v) + t

• a = (v-u) / t

Identify the correct equation for force

• f = m/a

• f = ma

• f = m + a

• f = m - a

F = (mv - mu) / t stands for ....

• force = change in momentum

• force = rate of change in moments

• force = rate of change of momentum

• force = rate of change in motion

Refractive index calculation is ...

• sin r / sin i

• inverse sin i

• sin i / sin r

• sin i x sin r

V = IR, rearranged to find I is ...

• I = V/R

• I = V x R

• I = R/V

• I = R x V

The equation for power is

• P = IV

• P = CV

• P = AV

• P = I/V