![background image](http://html.mh-extra.com/html/pasco/me-8930/me-8930_instruction-manual_761347020.webp)
Smart Timer
012–06734A
16
Questions
1.
How do the two methods for determining the acceleration on a body due to Earth’s
gravity compare?
2.
How do the experimental measurements compare to accepted values?
2.
Insert the plug of the photogate into channel 1 or 2 of the Smart Timer, and set up the
Smart Timer to measure
Time, Fence
.
3.
Hold the Smart Timer Picket Fence in a position so it will drop vertically through the
photogate and so the 5 cm fence will block the photogate beam as the fence drops
through the photogate.
Note:
Three conditions must be met for greatest accuracy:
1. The Picket Fence must be dropped at a 90º angle to the photogate beam in such a
way that it does not rotate on the way down. One method to improve the drop is to
hold the edge of the Picket Fence with a clothspin or binder clip, and drop the
fence by squeezing the clothespin or clip.
2. The Picket Fence must be dropped so the 5 cm marks cut the photogate beam.
3. The Picket Fence must pass close to the LED that emits the photogate beam.
4.
Press
and drop the fence.
5.
Record t
1
and t
2
, and calculate the acceleration in meters/second
2
.
PART B—Determining the acceleration directly.
1.
Repeat steps 1 – 4 in Part A with the following modification: Set the Smart Timer to
measure
Acceleration: One Gate
. Repeat several times and calculate the average
acceleration (
g
).
Содержание ME-8930
Страница 2: ...Smart Timer 012 06734A ...
Страница 9: ...012 06734A Smart Timer 5 ...
Страница 12: ... 0102 3 4 5 6 7 28 9 11 7 28 9 011 7 8 9 011 7 8 9 0 1 2 3 4 0 121 3 415365200 758 8591 83 619 2 ...
Страница 13: ... 011 A01 011 BC DC E 2 0 F 0 1 0 1 2 2 0 1 234 3 5 3 353 2 0 6 07 8 35 53 2 9 ...
Страница 18: ...Smart Timer 012 06734A 14 ...
Страница 28: ...Smart Timer 012 06734A 24 ...
Страница 34: ...Smart Timer 012 06734A 30 ...
Страница 40: ......