STAAR Review: Category 2 Force & Motion

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•
Science
•
8th Grade
•
Hard
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15 questions
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1.
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.
2.
FLASHCARD QUESTION
Front
What does Newton's Law of Inertia state?
Back
An object at rest will stay at rest, and an object in motion will stay in motion at a constant velocity unless acted upon by an unbalanced force.
3.
FLASHCARD QUESTION
Front
What is acceleration?
Back
Acceleration is the rate of change of velocity of an object. It can occur due to a change in speed or direction.
4.
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.
5.
FLASHCARD QUESTION
Front
What is the formula for force?
Back
Force is calculated using the formula: Force = Mass x Acceleration (F = m*a).
6.
FLASHCARD QUESTION
Front
What is an unbalanced force?
Back
An unbalanced force is a force that causes an object to change its state of motion, resulting in acceleration.
7.
FLASHCARD QUESTION
Front
What happens to an object in motion when no forces act on it?
Back
It will continue to move at a constant velocity in a straight line.
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