Physics 106P: Lecture 1 Notes

1

• "If one wishes to plant new sod in his or her
  yard in the summer months, that person may not
  use the city's water to water it
• What state is this law from?
• Illinois
• California
• Iowa
• Florida
• Arizona

2

• These pictures were taken where?
• Hawaii
• St. Croix
• Mexico
• Nova Scotia
• Illinois

3

• Suppose you roll the same ball twice
  starting at the same height above the ground. The
  first time the ramp is long and has a gentle
  slope, and the second time the ramp is short and
  steep. Which time is the ball moving fastest at
  the bottom?
• A) The ball moves fastest at the end of the long
  ramp.  
• B) The ball moves fastest at the end of the short
  ramp.
• C) The ball moves with the same speed at the
  bottom of both ramps.

4

• Three objects start at rest from the same
  height. One falls straight down, one slides down
  a smooth inclined plane, and one swings on the
  end of a string.
• Which one moves fastest at the
  bottom?

vi
vp
vf
A) falling
B) sliding
C) swinging
D) all will be the same
E) it depends on the masses of the objects
5
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