Astrophysics as the option
| Front | What is the formula for gravitational field strength in a radial field? |
| Back |
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| Front | What does a Hurtzsprung-Russell diagram plot? |
| Back | Luminosity(R), Temperature(T), Absolute magnitude(L) and Spectral Class(B) |
| Front | What is Ionisation? |
| Back | -The removal of an electron from an atom when it gains enough energy |