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About this topic
Revise The Solar System, including choosing which equation gives weight W near Earth's surface, defining the approximate value of gravitational field strength g on Earth, if an astronaut has mass 70\,\mathrm{kg} on Earth, what is the weight on the Moon where g is 1.6\,\mathrm{N/kg} and what name describes the inward force needed for an orbit.
This topic covers
- choosing which equation gives weight W near Earth's surface
- defining the approximate value of gravitational field strength g on Earth
- if an astronaut has mass 70\,\mathrm{kg} on Earth, what is the weight on the Moon where g is 1.6\,\mathrm{N/kg}
- what name describes the inward force needed for an orbit
Example question types
- answer a short question such as “Which equation gives weight W near Earth's surface”
- answer a short question such as “What is the approximate value of gravitational field strength g on Earth”
- answer a short question such as “If an astronaut has mass 70\,\mathrm{kg} on Earth, what is the weight on the Moon where g is 1.6\,\mathrm{N/kg}”
