Height of the object
For our project we chose height of the object as our variable.
Object height (cm)
Shadow length (cm)
10.16
8.89
8.62
7.62
4.54
4.54
17.16
10.16
9.54
6.35
0
0
to find slope take the solid indisputable point 0,0 and find the average of the two closest points to each other. (8.62, 7.62) and (9.54,6.35) the average of those two points are. (9.08,6.99) then the slope would be easy because (0,0) the slope would be 6.99/9.08 or around 0.77 so the slope of the line is y=0.77x.
The experiment looked like this.
Another group found that the distance from the object to the light source also changes how long the shadow did these are their findings.
Distance from object to light source
Shadow length
50.8
63.5
63.5
45.72
76.2
40.64
88.9
36.83
101.6
35.56
114.3
34.29
127
30.48
This shows how the farther away the light source is from the object, the shorter the object's shadow is. This is shown in the graph through the line of best fit of the data, which shows that starting from the distance of 50.8 cm from the object the shadow is 63.5 cm long. How ever when the distance is increased to 127 cm the shadow is 30.48 cm. That's a significant difference.
For our project we chose height of the object as our variable.
Object height (cm)
Shadow length (cm)
10.16
8.89
8.62
7.62
4.54
4.54
17.16
10.16
9.54
6.35
0
0
to find slope take the solid indisputable point 0,0 and find the average of the two closest points to each other. (8.62, 7.62) and (9.54,6.35) the average of those two points are. (9.08,6.99) then the slope would be easy because (0,0) the slope would be 6.99/9.08 or around 0.77 so the slope of the line is y=0.77x.
The experiment looked like this.
Another group found that the distance from the object to the light source also changes how long the shadow did these are their findings.
Distance from object to light source
Shadow length
50.8
63.5
63.5
45.72
76.2
40.64
88.9
36.83
101.6
35.56
114.3
34.29
127
30.48
This shows how the farther away the light source is from the object, the shorter the object's shadow is. This is shown in the graph through the line of best fit of the data, which shows that starting from the distance of 50.8 cm from the object the shadow is 63.5 cm long. How ever when the distance is increased to 127 cm the shadow is 30.48 cm. That's a significant difference.