Pupil sheet · Measuring and the pendulum
Measuring and the pendulum — final check
Name ______________________ Date ____________
Work alone, with the lesson closed. Answer every question; there are no hints.
1. describe / calculate / explain
A pupil wants to find the volume of one drop of water from a dropper. (a) Describe how to measure the volume of 50 drops with a 10 cm³ measuring cylinder marked every 0.2 cm³, so that the reading is as accurate as possible. (b) The 50 drops have a volume of 2.4 cm³. Calculate the volume of one drop. (c) Explain why the pupil measured 50 drops and not one.
(a) How to read the volume of 50 drops
(b) Volume of one drop, with working
(c) Why measure 50 drops
2. describe / calculate / state
A pupil investigates how the period of a pendulum depends on its length. (a) Describe how to measure the length of the pendulum. (b) Describe how to measure its period as accurately as possible with a stop-clock. (c) For a length of 0.80 m, 20 oscillations take 35.9 s. Calculate the period. (d) State how the period changes as the length increases, and whether it is proportional to the length.
(a) How to measure the length
(b) How to measure the period accurately
(c) Period for 0.80 m, with working
(d) How the period changes with length