Forced oscillations Resonance_Activity Sheet_Resonance

Name_________________________________________grade_________

Objective: To determine what are the factors affecting resonance.

Open the PhET Simulation on Resonance

https://phet.colorado.edu/en/simulation/resonance

PART I. Varying spring constant

A.   Follow-up questions:

In table 1, which of the resonators has higher amplitude at:

i.     frequency of 1.0 Hz? _____. What is its amplitude? _______.

ii.     frequency of 1.5 Hz? _____. What is its amplitude? _______.

iii.     frequency of 2.0 Hz? _____. What is its amplitude? _______.

b.   What happens to the resonating frequency when the spring constant is increased?

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c.   What happens to the amplitude when the spring constant is increased?_____________________________________________________________________________________________________________

PART II. Varying mass

A.               Follow-up questions:

In table 2, which of the resonators has higher amplitude at:

     i.frequency of 1.0 Hz? _____. What is its amplitude? _______.

  ii.frequency of 1.5 Hz? _____. What is its amplitude? _______.

iii.frequency of 2.0 Hz? _____. What is its amplitude? _______.

a.                  What happens to the resonating frequency when the spring constant is increased?

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b.                 What happens to the amplitude when the spring constant is increased?

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