Sci8 Unit 2 Motion and Forces
Flashcard
•
Physics
•
8th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the net force on an object if multiple forces are acting on it?
Back
The net force is the vector sum of all the individual forces acting on the object.
2.
FLASHCARD QUESTION
Front
Define acceleration in the context of motion.
Back
Acceleration is the rate of change of velocity of an object with respect to time.
3.
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.
4.
FLASHCARD QUESTION
Front
What does a negative acceleration indicate about an object's motion?
Back
A negative acceleration indicates that the object is slowing down or decelerating.
5.
FLASHCARD QUESTION
Front
What is the formula for calculating force?
Back
Force is calculated using the formula: Force = mass × acceleration (F = ma).
6.
FLASHCARD QUESTION
Front
If a 20 kg bike accelerates at 10 m/s², what is the force acting on it?
Back
The force acting on the bike is 200 N.
7.
FLASHCARD QUESTION
Front
What is the significance of the direction of net force?
Back
The direction of the net force determines the direction of the object's acceleration.
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