# [Solution]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…

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 3rd decimal
point.

Experimental:

Equipment-list, picture
specificationProcedure

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 2nd 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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