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Interdisciplinary Unit- Development- Scientific Application-

Scientific application:

My prediction is that the less steep the slope is the less effort force is needed to pull the hole punch up the inclined plane.

Scientific application:

My prediction is that the less steep the slope is the less effort force is needed to pull the hole punch up the inclined plane.

 

 

 

 

My pictures of our experiments:

 

 

This is the first inclined plane that we measured. It was a steep inclined plane and the force that we used to pull the hole punch up it was 4n.

Screen Shot 2013-10-08 at 7.41.40 AM

 

This is the second inclined plane that we measured. It was steep but not as steep as our first one. The effort-force we used to pull the Hole punch up the inclined plane was 3.5n.

 

Screen Shot 2013-10-08 at 7.42.35 AM

 

 

 

This is the third slope that we measured and it was a moderately steep slope. The effort force we used to pull the hole punch up the slope was 3.5n also.

Screen Shot 2013-10-08 at 7.43.39 AM

 

This is the fourth slope that we measured, it was a gentle slope and the effort slope that we used to pull the whole punch up it was 3n.

Screen Shot 2013-10-08 at 7.44.09 AM

 

This was our fifth and final slope that we measured was a very gentle slope. The effort force we used to pull the hole punch up it was 2n.

Screen Shot 2013-10-08 at 7.44.40 AM

 

 

My data in of our experiments in form of graphs and tables:

If you would like to enlarge my pictures just click on them.

This graph corresponds to the table that I have made below.

Inclined plane

1

2

3

4

5

Rise (cm)

81

74

63

58

44.5

Run (cm)

30

74

62

66

76

Slope

2.9

2.74

1.01

0.88

0.58

Effort Force

4

3.5

3.5

3

2

 

 

Screen Shot 2013-10-09 at 9.11.46 AM

Between “B and C” is what we call the run. Between “A and B” is what we call the rise. To find out the gradient of the slope we then divide rise by the run.

Screen Shot 2013-10-09 at 9.12.09 AM

When there is a steeper slope the effort force is going to be more because it is then harder to pull the item up the slope because it is steeper.

 

When there is a steeper slope the effort force is going to be more because it is then harder to pull the item up the slope because it is steeper.

My conclusion is that: “My prediction is that the less steep the slope is the less effort force is needed to pull the hole punch up the inclined plane.” When you pull an object up a slope that is not very steep it is easier to pull it up that slope and uses less effort force because you are using a less steep slope, you have to pull the object a further distance to get to the same height. We know this because whenever I completed my experiment, as you can see in the table of my data, it shows that as the rise decreases, the run increases and the effort force decreases which shows us that as the slope becomes less steep the effort force decreases. Therefore when a slope becomes steeper the effort-force needed to pull an object up it becomes more. When the slope becomes less steep the effort-force needed to pull that item up the slope will become less.

 

Inclined plane

1

2

3

4

5

Rise (cm)

81

74

63

58

44.5

Run (cm)

30

74

62

66

76

Slope

2.9

2.74

1.01

0.88

0.58

Effort Force

4

3.5

3.5

3

2

 

This is a video journal of our experiments on inclined planes:

 

 

Innovative process:

Screen Shot 2013-10-07 at 2.42.09 PM

 

There will be a fixed frame as part of my machine. The top part will be a lever. There will be a fixed rod with a blade on the end of it. The fulcrum / pivot will be where the lever connects to the main frame so it can swivel. The load is the blade on the end of the fixed rod. There will be a cylinder covering most of the egg which will be made of an insulated material. So when you hold the egg you won’t burn your fingers. The top part of the egg will be sticking put still so you can cut it off. The eggcup holder on the frame will be connected to the main frame. The eggcup will then slide into the holder ready for the egg. Nothing will fall off (EG. The egg) my machine because you will wither be holding it or it will be connected to the frame in some way. See design above.

 

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