Frequency

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/frequency

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the SI unit?Hertz (Hz), defined as one cycle per second
2. What is the fundamental relationship?Frequency is inversely proportional to the period of oscillation (f = 1/T)
3. Why do we call the unit of frequency "Hertz"?It is named after Heinrich Hertz, who proved radio waves exist by making and detecting them between 1886 and 1889.
4. How does frequency affect the sound we hear?The frequency of a sound wave determines its pitch. Our ears can hear about 20 Hz to 20,000 Hz.

Periodic Motion: Motion that repeats itself at regular intervals of time, characterized by frequency and amplitude.
Resonance: The phenomenon where a system oscillates with maximum amplitude when driven at its natural frequency.