# Lab 2 Essays

621 Words Sep 11th, 2015 3 Pages
UMUC NSCI 101/103

Lab 2: Types of Forces

INSTRUCTIONS:

On your own and without assistance, complete this Lab 2 Answer Form electronically and submit it via the Assignments Folder by the date listed on your Course Schedule (under Syllabus).

To conduct your laboratory exercises, use the Laboratory Manual that is available in the classroom. Laboratory exercises on your CD may not be updated.

Save your Lab 2 Answer Form in the following format: LastName_Lab2 (e.g., Smith_Lab2).

You should submit your document in a Word (.doc or .docx) or Rich Text Format (.rtf) for best compatibility.

Experiment 1: Friction

Table 1: Applied Force Required to Slide Cup

Cup Material Force Applied F1

m1 = 300 g water
Right as the cup begins to slide the applied force is equal to the force of friction—draw a free body diagram for each type of cup (a total of three diagrams). Label the force due to gravity mg, the normal force FN, and the friction force Ff, but don’t use any specific numbers. What makes this a state of equilibrium?

Does it take more force to slide an object across a surface if there is a high value of μ or a low one? Explain your answer

Experiment 2: Velocity and Air-Resistance

Table 2: Coffee Filter Data

Procedure 1

1 Coffee Filter 2 Coffee Filters

Height of Table (m)

Total Time (s) – Trial 1

Total Time (s) – Trial 2

Total Time (s) – Trial 3

Total Time (s) – Trial 4

Total Time (s) – Trial 5

Calculated Average Speed (m/s)

Procedure 2

Measured Height (m)

Total Time (s) – Trial 1

Total Time (s) – Trial 2

Total Time (s) – Trial 3

Total Time (s) – Trial 4

Total Time (s) – Trial 5

Average Time (s)

Calculated Height (m)

Questions:

Draw a FBD for the falling coffee filter.