A pendulum completes 20 oscillations in 40 seconds. What is its frequency? (2022

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Question: A pendulum completes 20 oscillations in 40 seconds. What is its frequency? (2022)

Options:

Correct Answer: 1 Hz

Solution:

Frequency f = number of oscillations / time = 20 / 40 s = 0.5 Hz.

A pendulum completes 20 oscillations in 40 seconds. What is its frequency? (2022)

A pendulum completes 20 oscillations in 40 seconds. What is its frequency? (2022)

Step 1: Understand what frequency means. Frequency is how many times something happens in a certain amount of time.
Step 2: Identify the number of oscillations. In this case, the pendulum completes 20 oscillations.
Step 3: Identify the total time taken for those oscillations. Here, it takes 40 seconds.
Step 4: Use the formula for frequency: Frequency (f) = Number of oscillations / Time.
Step 5: Plug in the numbers: f = 20 oscillations / 40 seconds.
Step 6: Calculate the frequency: 20 divided by 40 equals 0.5.
Step 7: Write the final answer: The frequency of the pendulum is 0.5 Hz.

Frequency – Frequency is the number of oscillations or cycles completed in a unit of time, typically measured in Hertz (Hz).
Oscillation – An oscillation refers to a repetitive variation, typically in time, of some measure about a central value.
Time Measurement – Understanding how to measure time accurately is crucial for calculating frequency.