Name Review
Date
Period
x (m)
70
1. Consider the position vs. time graph at right.
a. Determine the average velocity of the
object.
60
50
40
30
20
b. Write a mathematical equation to describe
the motion of the object.
10
1
2.
3
45
6
7 t()
V
imist
Shown at right is a velocity vs. ti me graph for an object.

Identify the theory that can be used to explain each phenomenon. answers diffraction: wave theory interference: wave theory reflection: both particle and wave theories refraction: both particle and wave theories

Which accurately compares concave and convex lenses?

The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.