8.5 Standard Model - Time Dilation

Question 1

When do things experience time dilation?

Answer 1

Moving near the speed of light relative to observer

Question 2

What is time dilation?

Answer 2

When time seems to be ticking slower for the moving object/thing

Question 3

Equation for time dilation and symbol meaning. We are not expected to be able to apply it only describe it!

Answer 3

y = 1/(square root)1-(v^2/c^2)

Question 4

Why can some muon with a half life of 2.2us can be detected at sea level?

Answer 4

The muons are travelling very quickly. So quickly that they take longer to decay due to time dilation. Time is running slower for the muons.