Formal Write up physics lab.

Formal Write up

Word document

Introduction

What is acceleration due to gravity?

• Mass independence
• Height dependence
• Show that g=9.8m/s^2 using G=
  6.67 x10^-11 Formula: Fg=GM/r^2

There are companies out there that are
interested in determining “g” accurately? What techniques do they use? (Make a
research) These companies are researching g in the 3^rd decimal
point.

Experimental:

1. Equipment-list, picture
   specification
2. Procedure

Results and Discussion

PART A: Position vs time graph (plug the
information of the graph in the excel and place the graph in the word
document-comment on shape of graph and whether it is consistent with kinematic
equation y-yo=Voyt+1/2ayt^2. In excel do 2^nd order polynomial
trend-line fit and find acceleration due to gravity from trend line equation).
EACH TABLE NEEDS TO HAVE A GRAPH

Table 1

Time	P(cm)
0	0
1/40s	1.1
2/40s	2.9
3/40s	5.8
4/40s	8.1
5/40s	11.8
6/40s	16.7
7/40s	19.9
8/40s	25
9/40s	30.4
10/40s	36.5
11/40s	43.9
12/40s	50.7
13/40s	58.6
14/40s	66.6
15/40s	75.3
16/40s	84.6
17/40s	94.5
18/40s	104.4
19/40s	116

Table 2
acceleration(cm/s^2) from trend line eq. over %error (accept value 980cm/s^2)

PART B: Velocity over time

Table 3

Graph 2 on excel velocity
over time. Comment on shape of graph and is it consistent with kinematic
equation V=Vo+at ? Do a linear trend-line fit to determine acceleration from
trend-line equation.

Table 4

Conclusion: Comment on the
obtained acceleration values and explain why it might be different.  

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