Proper time — Science definition
Time measured by a clock present at both events.
Where it is taught
- Relativity, Light Speed & Model Limits — Modern Physics, Physics & Environmental Science, Grade 12
In use
Proper time is measured by a clock present at both events; another inertial frame can measure a larger interval for those events.
Relativity, Light Speed & Model Limits
Questions using proper time
Problem 1
Proper time 4 s andγ=2. Find dilated interval.
Hints
Write the relationship first; substitute with consistent units.
Answer and explanation
8 s
2×4=8.