Unit 3 Dynamics

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Physics
•
9th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the definition of balanced forces?
Back
Balanced forces are forces that are equal in size and opposite in direction, resulting in no change in motion.
2.
FLASHCARD QUESTION
Front
What does a constant velocity indicate about the net force acting on an object?
Back
A constant velocity indicates that the net force acting on the object is zero.
3.
FLASHCARD QUESTION
Front
How does mass affect acceleration in a system with multiple blocks?
Back
In a system with multiple blocks, if the mass of one block increases while the net force remains constant, the acceleration of the system decreases.
4.
FLASHCARD QUESTION
Front
What is the relationship between net force and acceleration according to Newton's second law?
Back
According to Newton's second law, the net force acting on an object is equal to the mass of the object multiplied by its acceleration (F = ma).
5.
FLASHCARD QUESTION
Front
What happens to the perceived weight of a person in an elevator when it accelerates upward?
Back
When an elevator accelerates upward, a person feels heavier than normal due to the increased normal force acting on them.
6.
FLASHCARD QUESTION
Front
What is the significance of the direction of net force in determining the motion of an object?
Back
The direction of the net force determines the direction of the object's acceleration and, consequently, its motion.
7.
FLASHCARD QUESTION
Front
What does it mean for an object to have a changing velocity?
Back
An object has a changing velocity when it is either speeding up, slowing down, or changing direction.
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