CFI Physics Exam #1
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A physicist records the length of apendulum as 152.4cm +/- 0.1 cm. The designation of +/- is most properly called that _________.
Margin of error
Waht is the fundamental SI until of mass?
How would you write 39,000,000 in scientfic notation?
9.3 x 107
True/False: 5 Liters - 2 square inches is a possible process.
False: They are different dimensions
Which is a derived unit:
m, s, m/s, or K
m/s (meters per second)
What does the prefix nano- mean?
How many signifigant digits are in the number 6.02200?
Two quantities cannont be compared, added, or subtracted unless they have teh same ___________.
All objects in __________ have the same accelration.
Which of the following is a vector quanity:
Velocity, Mass, Time, or Speed
What equation is used to calculate centripetal acceleration?
What will happen if arrow A is shot horizontally at the exact moment that an identical arrow B is dropped from the same height?
Arrows A and B will hit the ground at the same time
If you are driving a car at a constant speed around a circular track, are you accelerating?
Yes, because my direction is continually changing
What would you like to do?
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