Activity: Dark matter and dark energy

IB Physics: Activity: Dark matter and dark energy

The Pinwheel galaxy (European Space Agency & NASA)When you did your investigation you might have found that your results didn"t agree with your theory. This can be frustrating in the context of internal assessment but it is when experiment doesn"t agree with theory that new theories are developed (NOS). An example of this is the predicted relationship between speed and distance from the centre of a spinning galaxy.

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