Physics 0625 · IGCSE · Stars and the Universe

Stars and the Universe — practice question

(a)[1]

State the condition that allows a protostar to develop into a stable star.

(b(i))[2]

Define the Hubble constant.

(b(ii))[1]

State the equation used to estimate the age of the Universe.

(b(iii))[1]

Calculate an estimate of the age of the Universe.

Worked solution & mark scheme

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