Ontario Grade 9 Science Class Practice Exam 2025 – Your Complete Guide to Exam Success!

Question: 1 / 400

What is the unit of measurement for frequency?

Decibels (dB)

Joules (J)

Hertz (Hz)

Frequency measures how often a repeating event occurs within a specific time frame, typically expressed in terms of waves, vibrations, or cycles per second. The standard unit of frequency is Hertz (Hz), which defines one cycle per second. This measurement is essential in various fields, including physics, engineering, and music, as it helps quantify sound waves, electromagnetic waves, and other periodic phenomena.

The other units of measurement mentioned, such as decibels, joules, and watts, correspond to different physical quantities. Decibels measure sound intensity, joules represent energy, and watts indicate power. Each of these units serves a unique purpose and is not applicable to the concept of frequency. Consequently, Hertz is the correct unit measurement for frequency, emphasizing the importance of understanding unit distinctions in scientific contexts.

Get further explanation with Examzify DeepDiveBeta

Watts (W)

Next Question

Report this question

Download Ontario Grade 9 Science Class Practice Exam PDF Study Guide
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy