A planet has twice the Earth's mass and twice its radius. Its surface gravitational field strength is:
From Paper 2: Advanced Physics II
16(a)2 marks
Calculate g at the surface of Mars (mass 6.42 × 10²³ kg, radius 3.39 × 10⁶ m).
From Paper 2: Advanced Physics II
16(b)3 marks
Calculate the gravitational potential at the surface of Mars and the escape velocity.
From Paper 3: General and Practical Principles in Physics
10(a)4 marks
The International Space Station orbits 410 km above the Earth's surface (Earth radius 6.37 × 10⁶ m, mass 5.97 × 10²⁴ kg). Calculate its orbital speed and period.
From Paper 3: General and Practical Principles in Physics
10(b)3 marks
Explain why astronauts on the ISS feel weightless even though g there is about 8.7 N kg⁻¹.
Score 0 / 13 · 0 of 5 marked
This paper is written by Plasmo in the style of the Edexcel A-Level Physics exam. It is not a past paper and is not produced or endorsed by the exam board.