Science Portfolio

Wout= 210 N

Win= Fin × Din
Win= 3N × 90m

Win= 270 N

Efficiency= 210 ×
270
100

Angle 3: 37° IMA= Din AMA= F out Efficiency= 77.77%
IMA= D50out AMA= 7F in
30 4 Efficiency
Wout= Fout × Dout
Wout= 7N × 30m

IMA= 1.67 AMA= 1.75

Wout= 210 N

Win= Fin × Din
Win= 4N × 50m

Win= 200 N

Efficiency= W out ×
W in
100
210
Efficiency= 200 ×

100

Efficiency= 105%
DOES NOT WORK

Graph:​ (​ Angle and Mechanical Advantage)

Angle (°) Mechanical Advantage
12 5
19 3
37 1.67

As the angle increases, the Mechanical advantage decreases.
Option #2 Building
Compare 2 famous buildings based on the following Inclined Plane Data.
A builder wanted to get a 6​ 0 kg bag​ of concrete to the top of the 2
buildings.
Building One: Buckingham Palace, 24 m
Building Two: Big Ben, 96
1. What would the length of the ramp be if the machine has:
IMA - 5.9
AMA - 3.7

Buckingham Palace Big Ben

Wout= Fout x Dout Wout= Fout x Dout
14400= 600N x 24m 57600= 600N x 96m

IMA - 5.9 IMA - 5.9
Din Din
5.9= Dout 5.9= Dout

(24)5.9=(24) x (96)5.9=(96) x
24 96

141.6=x 566.4=x

AMA - 3.7 AMA - 3.7
F out F out
3.7= F in 3.7= F in

(x)3.7=(x) 600 (x)3.7=(x) 600
x x
3.7x = 600 3.7x = 600
3.7 3.7 3.7 3.7
x= 162.16 x= 162.16

The length of the ramp would be
2. What are the angles of the ramps?

Buckingham Palace Big Ben

Angle= opp Angle= opp
adj adj
24 96
x= 24 x= 96

x=1 x=1

Tangent = 1 Tangent = 1

Angle= 45​° Angle= 45°​

The angle of the ramp for Buckingham Palace is .
The angle of the ramp for The Big Ben is .
3. Using Work Input and Output, what is the efficiency of the machines?

Wout= Fout x Dout Wout= Fout x Dout
14400= 600N x 24m 57600= 600N x 96m

Wout= 14400 Wout= 57600

Win= Fin x Din Win= Fin x Din
Win= 162.16N x 141.6m Win= 162.16N x 566.4m
Win= 22961.86 Win= 91847.42

Efficiency= W out x 100 Efficiency= W out x 100
W in W in
Efficiency= 14400 x 100 Efficiency= 57600 x 100
22961.86 91847.42
Efficiency= 62.71% Efficiency= 62.71%

Rubric

Lab Rubric - Data Analysis Sections

1 234

Data/ ____Data is poorly ____Data is ____Data is ___Data is clearly
Observations organized or missing represented in a represented in the and accurately
altogether. table or graph, but table or graph with represented in a
No mention of it is incomplete or minor errors. More table or graph.
observations there are major complete discussion Observations
errors. Some of observations. include discussion
discussion of of both qualitative
observations and quantitative
observations.

Conclusion/ ____No conclusion is ____Somewhat ____Adequately ____Clearly explains
Analysis written in this report or it explains whether or explains whether or whether or not the
is very brief. No data is not the hypothesis not the hypothesis hypothesis was
cited. was supported. was supported. supported. Data
____No analysis is ____ Possible Data is cited to was cited to support
included or it is extremely sources of error are support hypothesis. the hypothesis.
brief no sources of error somewhat ____Possible ____Possible
are explained. explained. sources of error are sources of error are
____No discussion of ____ No discussion adequately clearly explained.
patterns or trends in the of patterns or explained.
data trends ____Some ____Trends and
discussion of Patterns in the data
patterns or trend in are clearly
the data discussed.