An astronaut and her spacesuit have a total mass of 150 kg.
On the Moon, the weight of the astronaut and spacesuit is 240 N.
Calculate the gravitational field strength on the Moon.
A student says, "The astronaut has less mass on the Moon than on Earth, because she weighs less on the Moon."
Explain why the student is wrong.
On Earth, the largest upward force the astronaut can exert to lift a rock is 300 N.
The gravitational field strength on Earth is 10 N/kg.
Calculate the largest mass of rock the astronaut could lift with the same force on the Moon.
The astronaut jumps straight up. She leaves the ground with the same upward speed on the Moon as she does on Earth.
Explain why she rises higher on the Moon than on Earth.
103 exam-style questions on Edexcel GCSE Physics 2.3 Forces and Newton's laws, covering 2.3.1 Newton's first law, 2.3.2 Newton's second law, and 2.3.3 Weight and gravitational field strength. Each one has a worked solution and a mark scheme showing where the marks go.