Physics Paper 2
Red shift
Space Physics [Triple Only] training before the targeted original question drill.
Adaptive teaching card
Make it concrete
Analogy
Red shift is like tracking a system with arrows and numbers: decide what changes, what stays conserved, and what equation describes it.
Why now: An analogy helps when the definition feels abstract.
Do this: Match each part of the analogy to the science idea.
Learn it
Light from distant galaxies is shifted to longer wavelengths.
Greater red shift suggests a galaxy is moving away faster.
Red shift supports the idea that the universe is expanding.