Notations and Definitions Homework

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14 Νοε 2013 (πριν από 3 χρόνια και 8 μήνες)

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Notations and Definitions

Homework


1. What does the notation x
o
,
or x
i
,

mean?



2. What does the notation

x mean?



3. The symbol


(like in

x) always means the

________
value minus the

_________
value.


4. What is the
displacement of an object that m
oves from

+8 m
to
-
8 m?



5. What is the difference between average velocity and instantaneous velocity?



6. If someone refers to “velocity”, does it mean the average velocity or the instantaneous
velocity?


7. What instrument in your car measures

a. di
stance traveled?

b. displacement?

c. speed?

d. average velocity?


e. velocity?


8. On a graph of x vs. t, what does the slope of the line represent?


9. What does a negatively sloped x vs. t graph indicate?