IGCSE Physics formulae

select two correct answers that show:

Average speed?

• s = d/t

• v = s/t

• speed = distance/time

• velocity = speed/time

Acceleration?

• a = (v-u)/t

• d = s/t

• v = s/t

• F= m/a

Tags

NGSS.HS-PS2-1

v = Δϰ/Δt?

• average speed

• force needed

• average velocity

• acceleration

Tags

NGSS.HS-PS3-1

Which formulae shows the relationship between Force, mass and acceleration?

• W = mxg

• F = mxa

• p=mxv

• ρ=mxV

Tags

NGSS.HS-PS2-1

Which formulae shows the rate in change of mometum?

• F= mxa

• F= mxv - mxu / t

• F= mxg

• F= Fxχ

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

Formula for Power?

• ΔE = Fxd

• KE = 1/2mxv²

• W = ΔE/t

• GPE = mxgxh

ΔE = Fxd?

• work = force x distance

• Power = Work/ time

• Pressure = height x density x gravity

• Kinetic energy = 1/2 mass x velocity²

Tags

NGSS.HS-PS3-1

Which is the correct formula for energy efficiency?

• Efficiency = total input energy / useful energy output x 100

• Efficiency = total input energy / useful energy output / 100

• Efficiency = total input energy / useful energy output / 100

• Efficiency = useful energy output / total input energy. x100

Select the two that show Refractive index of a material

• Refractive index = speed of light in vacuum x speed of light in material

• Refractive index = speed of light in vacuum / speed of light in material

• n = v₁ / v₂

• n = v₁ x v₂

Select the two that show the relationship between wave speed, frequency and wavelength

• c = f x λ

• Wave speed = frequency x wavelength

• Wave speed = frequency / wavelength

• c = f / λ

Tags

NGSS.HS-PS4-1