Name
___________________________
Date ________
Sliding Friction vs. Fluid
Friction
Purpose:
How does changing the type of friction affect the motion of an object.
Background:
Define Sliding
Friction:
________________________________________________________________________________________________________________________________________________________________________________
Define Fluid
Friction:
________________________________________________________________________________________________________________________________________________________________________________
Procedure:
1. Choose 1 person to be the slider. Slide a puck down a track beginning at
the starting line. Measure the
distance travelled. If the puck
tumbles, do the test over. Repeat
two more times and calculate the average time.
2. One person will be the balloon
person. They should blow up the
balloon with room to spare in the balloon and twist the opening closed. (DON’T
TIE THE BALLOON!)
3. Put the balloon on the puck and untwist
and pinch the balloon. Release the
air from the balloon as you push it down the track.
4. Measure the distance. Repeat 2 more
times. Find the average.
5. Clean up.
6. Answer questions.
Data:
|
Type
of Friction
|
Trial
1 Distance in cm
|
Trial
2 Distance in cm
|
Trial
3 Distance in cm
|
Average
Distance in cm
|
|
Sliding
|
|
|
|
|
|
Fluid
|
|
|
|
|
Questions:
1. How did increasing fluid friction (air)
affect the puck? Use quantitative
data.
2. What sports require LESS friction?
Why? What sports require MORE
friction? Why?
