
4th Grade - Unit 5 - Waves and Information Unit Test 2023-24
Flashcard
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Science
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4th Grade
•
Practice Problem
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Hard
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1.
FLASHCARD QUESTION
Front
What are electromagnetic waves?
Back
Electromagnetic waves are waves that can travel through a vacuum and do not require a medium. They include visible light, radio waves, and X-rays.
2.
FLASHCARD QUESTION
Front
What is a characteristic of electromagnetic waves?
Back
They can travel through a vacuum.
3.
FLASHCARD QUESTION
Front
What does frequency mean in relation to waves?
Back
Frequency is the number of waves that pass a point in one second. Higher frequency means more energy.
4.
FLASHCARD QUESTION
Front
What is amplitude in wave terminology?
Back
Amplitude is the height of the wave from its rest position. It indicates the energy of the wave; higher amplitude means more energy.
5.
FLASHCARD QUESTION
Front
What happens to light when it reflects off an object?
Back
Light reflected from the object's surface must enter your eyes for you to see the object.
6.
FLASHCARD QUESTION
Front
What is a transverse wave?
Back
A transverse wave is a wave where the motion of the medium is perpendicular to the direction of the wave.
7.
FLASHCARD QUESTION
Front
What is a longitudinal wave?
Back
A longitudinal wave is a wave where the motion of the medium is parallel to the direction of the wave.
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