Gravity (GCSE Physics)

Which formula gives the gravitational force between two point masses m1 and m2 separated by distance r (Newton’s law of universal gravitation)?

Which of the following correctly distinguishes mass from weight?

A person of mass 60 kg climbs a 12 m high ladder. What increase in their gravitational potential energy occurs? (g = 9.8 N/kg)

Which factor does NOT affect the gravitational force between two objects?

Which of these factors will reduce your weight reading on a bathroom scale?

A 70 kg astronaut stands on the Moon where the gravitational field strength is 1.6 N/kg. What is the astronaut’s weight on the Moon?

Which quantity remains the same for an object lifted slowly from Earth’s surface to a higher location: its mass, weight, gravitational potential energy, or all three?

A 0.20 kg object is swung on a string in a horizontal circle of radius 0.50 m at constant speed 4.0 m/s. What is the magnitude of the centripetal force provided by tension? (F = m v^2 / r)

A stone is dropped from rest in a vacuum close to Earth. Which graph best shows its velocity-time behaviour (qualitative)?

How does gravitational field strength vary with distance r from a point mass M (qualitative)?

An object of mass 0.50 kg is attached to a light spring and is lowered slowly by 0.80 m. The gravitational field strength is 9.8 N/kg. How much energy is stored as gravitational potential energy?