Motion in 1 Direction Flashcards
What is the definition of Physics?
The study of the physical world based on quantifiable observation.
What is the SI system?
Metric System
What is the SI unit for length?
Meter
What is the SI unit for mass?
Kg
What is the SI unit for time?
Sec
To what power of 10 is nano?
-9
To what power of 10 is micro?
-6
To what power of 10 is milli?
-3
To what power of 10 is centi?
-2
To what power of 10 is kilo?
3
To what power of 10 is mega?
6
To what power of 10 is giga?
9
What is a Scalar Quantity?
A quantity with only magnitude ie: temperature
What is a vector quantity?
A quantity with magnitude and direction ie: displacement
What is distance?
Total length traveled(m)
What is displacement?
Where you are in relation to where you started(m)
What is average speed?
Total distance/total time(m/s)
What does a constant slope on a speed vs. time graph tell you?
Constant Speed
How do you find instantaneous speed?
V= change in x/ change in time
ie: find speed at t=5(x value/5sec
What is velocity?
Displacement/change in time (m/s)
-speed is the magnitude of velocity
What is acceleration?
Change in velocity/change in time (m/s2)
What does the slope of a velocity vs. time graph tell you?
m/s2 or acceleration
What does the area of a velocity vs. time graph tell you?
Displacement
What does the slope of an acceleration vs. time graph tell you?
Velocity (m/s)
What are the 5 KE equations?
1: V avg =(Vi -Vf) x 1/2
2: Xf = Xi + 1/2(Vi+Vf) x T
3: Vf =Vi x (T x A)
4: Vf2 = 2A x (Xf-Xi) + Vi2
5: Xf = Xi + Vi(T) + 1/2 (A x T)2
