Unit 6 Test Light & Sound

Unit 6 Test Light & Sound

Assessment

Flashcard

Science

5th Grade

Practice Problem

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

What is wavelength in the context of light waves?

Back

Wavelength is the distance between two consecutive high points (or peaks) of a wave.

2.

FLASHCARD QUESTION

Front

How is frequency defined in relation to sound waves?

Back

Frequency is the number of vibrations or cycles that occur in a unit of time, typically measured in Hertz (Hz).

3.

FLASHCARD QUESTION

Front

What is reflection in the context of light and sound?

Back

Reflection is the bouncing back of light or sound waves when they encounter a solid or liquid surface.

4.

FLASHCARD QUESTION

Front

What is the behavior of light waves in terms of their travel direction?

Back

Light waves travel in straight lines in all directions unless they encounter an obstacle.

5.

FLASHCARD QUESTION

Front

Why is a ruler important when demonstrating how a mirror reflects light?

Back

A ruler helps to accurately show the path of light waves, which requires straight lines.

6.

FLASHCARD QUESTION

Front

What is the difference between light waves and sound waves?

Back

Light waves are electromagnetic waves that can travel through a vacuum, while sound waves are mechanical waves that require a medium (like air or water) to travel.

7.

FLASHCARD QUESTION

Front

What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 299,792 kilometers per second (or about 186,282 miles per second).

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