Students act out the classic light clock scenario for deriving time dilation.
This is a kinesthetic activity to help derive the expression for time dilation.
2 people are needed for this skit. It helpts to have each person toss a small ball in the air to represent a photon in the light clock.
Have one person walking with their light clock and one person standing still with their light clock.
“For each light clock, consider two events: the photon is emitted and the photon is detected. How would each person describe these events for a tick of my light clock? For hers?
How do the time intervals for your light clock in (1) your reference frame \(\Delta t\) and (2) your friend's reference frame \(\Delta t'\) compare?