Choose all of the correct equations

• speed = distance x time

• distance = speed x time

• speed = distance / time

• time = speed x distance

A resultant force of 500N causes a body to accelerate at 20m/s². What is the mass of the body ?

• 2.5kg

• 25kg

• 1000kg

• 10000kg

Choose all of the correct equations ?

• resultant force = mass x acceleration

• mass = resultant force x acceleration

• acceleration = resultant force / mass

• resultant force = acceleration / mass

What equations could be used to link pressure and volume of an ideal gas at constant temperature ?

• p/V = constant

• pV = constant

• p_1/V₁ = p₂/V₂

• p₁V₁ = p₂V₂

A ideal gas has a pressure of 100kPa and a volume of 5m³. If it is compressed to a volume of 2m³, what will the pressure of the gas be ?

• 20kPa

• 40kPa

• 250kPa

• 500kPa

What is the equation for kinetic energy ?

• E_k = m v²

• E_k = m/v²

• E_k = 1/2 m v²

• E_k = 1/2 m/v²

What is the equation for gravitational potential energy ?

• E_p = 1/2 mg

• E_p = mg/h

• E_p = mgh

• E_p = 1/2 mgh

Select all of the correct symbols and quantities from the following ?

• s = displacement

• u = final velocity

• v = initial velocity

• a = acceleration

• t = time

If v²-u²=2as, what is the final velocity of a car which has an inital velocity of 8m/s, and then accelerates at 2m/s² for 20m ?

• 10 m/s

• 11 m/s

• 12 m/s

• 14 m/s

Momentum is ...

• mass x velocity

• mass / velocity

• mass x velocity²

• velocity / mass