What is convection?
7th Grade Quarter 2 Science Review REV

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Physics, Science
•
7th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
Convection is the transfer of heat through the movement of fluids (liquids or gases). Warm air rises while cool air sinks, creating a cycle.
2.
FLASHCARD QUESTION
Front
What property of light causes objects to appear in different locations when viewed underwater?
Back
Refraction is the bending of light as it passes from one medium to another, causing objects to appear displaced.
3.
FLASHCARD QUESTION
Front
What causes sound?
Back
Sound is caused by vibrations, which create pressure waves in the air.
4.
FLASHCARD QUESTION
Front
Which wave has the greatest wavelength?
Back
Wave 3 has the greatest wavelength.
5.
FLASHCARD QUESTION
Front
What type of energy is produced when a guitar string vibrates?
Back
Sound energy is produced when a guitar string vibrates.
6.
FLASHCARD QUESTION
Front
What is absorption in terms of light?
Back
Absorption is the process by which light is taken in by a material and converted to other forms of energy, such as heat.
7.
FLASHCARD QUESTION
Front
What is transmission in the context of light?
Back
Transmission is the passing of light through a material without being absorbed.
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