2nd 9 weeks review
Flashcard
•
Science
•
7th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What do molecules in a liquid look like?
Back
Molecules in a liquid are closely packed but can move around each other, allowing liquids to flow and take the shape of their container.
2.
FLASHCARD QUESTION
Front
How do you calculate average speed?
Back
Average speed is calculated by dividing the total distance traveled by the total time taken. For example, if a runner covers 100 meters in 10 seconds, her average speed is 10 m/s.
3.
FLASHCARD QUESTION
Front
What is the difference between speed and velocity?
Back
Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.
4.
FLASHCARD QUESTION
Front
What is radiation?
Back
Radiation is energy that comes in the form of wavelengths, such as light, and can travel through space.
5.
FLASHCARD QUESTION
Front
How does heat transfer occur when touching a cold surface?
Back
Heat moves from the warmer object (the hand) to the colder object (the window), resulting in the hand feeling cold.
6.
FLASHCARD QUESTION
Front
What is a scalar quantity?
Back
A scalar quantity is a physical quantity that has only magnitude and no direction, such as speed or temperature.
7.
FLASHCARD QUESTION
Front
What is a vector quantity?
Back
A vector quantity is a physical quantity that has both magnitude and direction, such as velocity or force.
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