Physics · Grades 8–11
Period from many oscillations
A period is the duration of one complete oscillation, not its frequency.
Rule and assumptions
A period is the duration of one complete oscillation, not its frequency.
T = total time / number of cycles
Worked examples
39 complete oscillations take 5 s. Find the period. Round to 3 decimal places if needed. Answer in s.
T = total time / number of cycles 5 / 39 = 0.128
0.128 s
43 complete oscillations take 32 s. Find the period. Round to 3 decimal places if needed. Answer in s.
T = total time / number of cycles 32 / 43 = 0.744
0.744 s
Try two questions
79 complete oscillations take 56 s. Find the period. Round to 3 decimal places if needed. Answer in s.
79 complete oscillations take 11 s. Find the period. Round to 3 decimal places if needed. Answer in s.
Answers and reasoning
Answers and marking notes
- 0.709 s
T = total time / number of cycles 56 / 79 = 0.709
- 0.139 s
T = total time / number of cycles 11 / 79 = 0.139
Further reading and review references
These are reference links, not copied exercises, institutional endorsement or proof of independent review.
Learning preview · independent educational and translation review required. Suggested grades are not official curriculum alignment.