Lab 4: Friction
Name:
______________________________
Date:
____________________
Group Members:
_______________________
_______________________
Objectives
·
Understand and define
friction
·
Observe the effects
of friction on an object
A. Pre Lab Questions
1. What is friction?
2. Name the types of friction and give examples of each.
B. Group Lab
Refer back
to Lab 1: Zoooooooooom! How Fast is
Fast? Using the same materials and
procedures, you will repeat the exercise in the parking lot and on the sidewalk.
Predicting
1. Do you
think the car will move faster or slower on the sidewalk than when you did the
experiment on the floor? Why?
2. Do you
think the car will move faster or slower in the parking lot than when you did
the experiment on the floor? Why?
C. Data Collection
Parking Lot
|
Trial Number |
Distance |
Time |
Average
Speed |
Average
Velocity |
|
1 |
|
|
|
|
|
2 |
|
|
|
|
|
3 |
|
|
|
|
Sidewalk
|
Trial Number |
Distance |
Time |
Average
Speed |
Average
Velocity |
|
1 |
|
|
|
|
|
2 |
|
|
|
|
|
3 |
|
|
|
|
D. Conclusion
1. Looking
at your results, which surface had the highest average velocity?
2. How does this compare to your predictions?