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Forces and the Universe (The solar system (A Star - the sun, Planets and…
Forces and the Universe
Forces
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you cannot see force, but often you can see what it does .
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Speed
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to measure speed, a distance value and a time value are needed
is a scalar quantity, as it doesn't refer to direction
The solar system
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There are eight planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune
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