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Physics review questions and answers correctly solved

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Physics review questions and answers correctly solved Physics review questions Define displacement and what are the SI units - correct answer final position -initial position; meters How does displacement and distance traveled differ? Give a concrete example. - correct answer an example ...

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  • October 19, 2024
  • 7
  • 2024/2025
  • Exam (elaborations)
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Physics review questions
Define displacement and what are the SI units - correct answer ✔final
position -initial position; meters


How does displacement and distance traveled differ? Give a concrete
example. - correct answer ✔an example is a cross country meet,
displacement is 0 because you go back to the start, but distance might be 3.2
miles. The displacement has to do with the initial and final positions, not just
the distance.


Define average velocity and give a formula. what are the SI units? - correct
answer ✔average velocity is the change in x/ over the change in time, m/s


What is the difference between average velocity and average speed? - correct
answer ✔average velocity is a vector measurement, which means that it
measures both magnitude and direction. Speed is a scalar measurement,
which only measures magnitude.


What is the difference between instantaneous and average velocity? - correct
answer ✔Instantaneous is the velocity over an instance (very small amount),
whereas average velocity is over a longer period of time.


What is meant by the slope of an arbitrary straight line? - correct answer
✔rise/run


what does the slope of straight line x vs t graph give you? - correct answer
✔average velocity

, what does the tangent of an x vs. t graph give you? - correct answer
✔instantaneous velocity


define and give an equation of average acceleration - correct answer
✔change of velocity over time


What is the standard units for acceleration - correct answer ✔m/s/s


A car is moving in the negative direction and increases its speed. Is the sign
of the acceleration positive or negative? - correct answer ✔negative


a ball is thrown straight up into the air. Calling "up" the positive direction, what
is the sign of the acceleration
- on the way up
- at the top
- on the way down - correct answer ✔- on the way up: negative
- at the top: negative
- on the way down: negative


What does the slope of a straight line v vs. t graph tell you - correct answer
✔average acceleration


what does the tangent of a v vs t graph tell you - correct answer
✔instantaneous acceleration


Acceleration, velocity, and displacement are all vector quantities because they
all have (2 things) - correct answer ✔magnitude and direction

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