The lunar surface, showing the effects of meteorite bombardment over billions of years
© Aleksandr/stock.adobe.com
The terms in bold link to topics in the AQA, Edexcel, OCR, WJEC and CCEA A-level specifications, as well as the IB, Pre-U and SQA exam specifications.
The sizes of craters on the Moon and other bodies in the Solar System depend on a number of factors, including the velocity and kinetic energy of the impactor, as well as the density of the body with which it collides, and its gravitational field strength. In a simple laboratory model, objects can be dropped onto different materials, transferring their gravitational energy to kinetic energy.
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