Pasco Scientific ME-6956, Инструкция по эксплуатации и руководство по экспериментам, Страница: 41 / 46

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012-07558A PAScar Accessory Track Set (2.2 Meter)
®
Notes on Procedure
6. For best results, make sure that the springs are
neither overstretched nor hanging loose. For
these tests, we only used 10-50g masses.
value for k and for m. For best results, measure
the cars rather than assume their weight to be the
stated 250g.
Notes on Comparison
The percent difference between experimental
and theoretical values should be less than 2%,
and it is not unusual to obtain errors of less than
0.5%.
Answers to Questions
1. The period of oscillation increases with mass.
The more massive car oscillates slower.
2. The period is not changed, as long as the initial
displacement does not exceed the linear region
of the spring. You will notice a slight difference
if the displacement is enough to permanently de-
form the spring.
Experiment 4: Simple Harmonic Oscillator
Notes on Calculations
1. The spring constant k = 3.089 N/m for the
springs used here. This value will vary from
spring to spring.
2. Theoretical values will vary, depending on the