AQA GCSE Physics - Forces - Revision 2021

What is the equation that links gravitational field strength, mass and weight?

• weight = mass x gravitational field strength

• weight = mass ÷ gravitational field strength

• weight = gravitational field strength ÷ mass

What is the equation that links distance, force and work done?

• work done = force x distance

• work done = force ÷ distance

• work done = distance ÷ force

What is the equation that links extension, force applied to a spring and spring constant?

• force applied to a spring = spring constant x extension

• force applied to a spring = spring constant ÷ extension

• force applied to a spring = extension ÷ spring constant

What is the equation that links distance, time and velocity?

• velocity = time x distance

• velocity = distance ÷ time

• velocity = time ÷ distance

What is the equation that links acceleration, change in velocity and time?

• acceleration = change in velocity x time

• acceleration = change in velocity ÷ time

• acceleration = time ÷ change in velocity

What is the equation that links acceleration, mass, and resultant force?

• resultant force = mass x acceleration

• resultant force = mass ÷ acceleration

• resultant force = acceleration ÷ mass

What is the equation that links mass, momentum, and velocity?

• momentum = mass x velocity

• momentum = mass ÷ velocity

• momentum = velocity ÷ mass

What is the momentum of a toy car of mass 500 g, travelling at a velocity of 30 m/s?

• 0.15 kgm/s

• 15 kgm/s

• 15 000 kgm/s

• 15 000 000 kgm/s

What is the unit of work?

• Newton

• Joule

• Watt

• meter

What is the resultant force in this diagram?

• 17 N, right

• 17 N, left

• 23 N, right

• 12 N, up