PHY120 Midterm 2024
Flashcard
•
Physics
•
University
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What happens to the velocity of a baseball as it rises in the air?
Back
The velocity decreases.
2.
FLASHCARD QUESTION
Front
What is the speed of a freely falling object after 5 seconds if it starts from rest?
Back
50 m/s.
3.
FLASHCARD QUESTION
Front
In an experiment on plant growth, what is the independent variable when different liquids are used?
Back
The type of liquid.
4.
FLASHCARD QUESTION
Front
If Nellie Newton weighs 440 N and hangs from a swing, how much weight does each rope support?
Back
220 N.
5.
FLASHCARD QUESTION
Front
Why do a paper and a rock fall at different rates?
Back
Air resistance.
6.
FLASHCARD QUESTION
Front
Define velocity in the context of motion.
Back
Velocity is the speed of an object in a given direction.
7.
FLASHCARD QUESTION
Front
What is the difference between speed and velocity?
Back
Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction).
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