The Table shows some statements about the Universe.
Table
| Statement | Big Bang theory | Steady State theory |
|---|---|---|
| The Universe had a beginning. | ||
| The Universe is expanding. | ||
| New matter is created all the time. | ||
| The Universe was once very hot and dense. |
Complete the Table by writing yes or no in each empty box.
The Steady State theory says that new matter is created as the Universe expands.
Explain why the Steady State theory needs new matter to be created.
State what is meant by the cosmic microwave background (CMB) radiation.
94 exam-style questions on Edexcel GCSE Physics 7.2 The Universe and red-shift, covering 7.2.1 Big Bang and Steady State theories, 7.2.2 Evidence for the Big Bang, 7.2.3 The Doppler effect and red-shift, 7.2.4 Red-shift as evidence for an expanding Universe, and 7.2.5 The CMB and the accepted model. Each one has a worked solution and a mark scheme showing where the marks go.