Experiment 1
NG1 How far will the marshmallow travel using different length tubes?
NG2 Procedure: We cut the folders and rolled them up at different lengths . The shortest is 9 inches, then 12 inches, and the longest was 18 inches. We placed the marshmallow closest to the mouth in the tube so that it starts the same place every time. We had the same person blow and used the same marshmallow every time. We estimated where the marshmallows landed and used meter sticks to see how far it went.
NG2 Procedure: We cut the folders and rolled them up at different lengths . The shortest is 9 inches, then 12 inches, and the longest was 18 inches. We placed the marshmallow closest to the mouth in the tube so that it starts the same place every time. We had the same person blow and used the same marshmallow every time. We estimated where the marshmallows landed and used meter sticks to see how far it went.
NG3
IV: Length of the tube
DV: How far the marshmallow travels
CV: Same person shooting and how hard she blows
NG3 Data Table:
Tube Length Distance
9 in. ---- 99.6 in.
12 in. ---- 125 in.
18 in. ---- 137 in.
When the tube length increases the distance increases.
The longer the tube the more time you blow with the same force. When there is more time there is more velocity meaning more momentum because J = ΔP and J = F x T.
Experiment 2
NG1 Will the mass of the marshmallow affect how far they travel?
NG2 Procedure: We kept out the meter sticks in line to tell how far the marshmallows travel. Next we got 6 marshmallows. We taped 3 marshmallows together with scotch tape in a line. Next we taped 2 marshmallows with the same tape and finally we taped 1 marshmallow the same so that it would have the same friction as the rest of them. good!! We kept the starting point, shooter, and tube the same. Each time we estimated where the marshmallow landed.
NG 3
NG2 Procedure: We kept out the meter sticks in line to tell how far the marshmallows travel. Next we got 6 marshmallows. We taped 3 marshmallows together with scotch tape in a line. Next we taped 2 marshmallows with the same tape and finally we taped 1 marshmallow the same so that it would have the same friction as the rest of them. good!! We kept the starting point, shooter, and tube the same. Each time we estimated where the marshmallow landed.
NG 3
IV: Mass of the marshmallow
DV: How far the marshmallows travel
CV: Same person shooting and how hard she blows
NG 3 Data Table:
Mass Distance
1 marshmallow -- 185.5 in.
2 marshmallows -- 89 in.
3 marshmallows -- 71 in.
When the mass increases the distance decreases.
Force*Time=mass*velocity
B force x C Time = 3 marshmallows x lower velocity
B Force x C Time = 1 marshmallow x higher velocity
good!
Experiment 3
NG1 How far will the marshmallow travel when starting at different heights?
NG 2 Procedure:
We used the same shooter, 12in. tube, force and marshmallow. First the shooter stood on a chair, then on her feet, and finally on her knees. We did 2 trials of each by estimating where they landed and then took the average and used one number.
NG 2 Procedure:
We used the same shooter, 12in. tube, force and marshmallow. First the shooter stood on a chair, then on her feet, and finally on her knees. We did 2 trials of each by estimating where they landed and then took the average and used one number.
IV: Height of the starting point
DV: How far the marshmallows travel
CV: Same person shooting and how hard she blows
NG3 Data Table:
Height Distance
Chair(80 in.) --- 91 in.
Standing(60 in.)--- 82 in.
Knees (34 in.) --- 74.5in.
When the height increases the distance increase.
Speed is the same but the time to fall is different. The higher the longer time to fall.
NG4-5
From these experiments we have now proved that J=ΔP (impulse = momentum). This is because J= F x T (impulse = force x time) and F x T = M x ΔV (Force x time = mass x change in velocity).
This is proved by our first experiment. The force stayed the same but the amount of time increased which means increase velocity and also momentum. For example, with the 9 in. tube, the marshmallow will have the same force applied as the rest but for not as long since it is shorter. This means there is less momentum therefore it the marshmallow won't travel as far. The longer the tube the more time the same amount of force is applied on the marshmallow.
In our second experiment we noticed that as the mass increases the distance the marshmallow travels decreases. This is true because since the force and time are equal to mass and velocity when one goes up the other gets lower. When there is one marshmallow the velocity increases because it is equal to the impulse that is given to all of the other different marshmallow masses. When the marshmallow mass increases the velocity decreases because it is still equal to the same impulse. good!
In our third experiment we learned something different. The force, and time mass, and velocity stay the same but the height of the marshmallow increases. The higher the marshmallow starts, the amount of time the marshmallow has to fall increases. When the height increases the distance increases.
Error analysis
In our experiments there are many things that we could have done better on. Something we could have done to improve was to get a machine like a fan to blow out the marshmallow so that the same amount of force would be applied more precisely. We could have also recorded all of the trials to try to get a better estimate of where the marshmallow landed each time. what do you mean all of the trials?
Speed is the same but the time to fall is different. The higher the longer time to fall.
NG4-5
From these experiments we have now proved that J=ΔP (impulse = momentum). This is because J= F x T (impulse = force x time) and F x T = M x ΔV (Force x time = mass x change in velocity).
This is proved by our first experiment. The force stayed the same but the amount of time increased which means increase velocity and also momentum. For example, with the 9 in. tube, the marshmallow will have the same force applied as the rest but for not as long since it is shorter. This means there is less momentum therefore it the marshmallow won't travel as far. The longer the tube the more time the same amount of force is applied on the marshmallow.
In our second experiment we noticed that as the mass increases the distance the marshmallow travels decreases. This is true because since the force and time are equal to mass and velocity when one goes up the other gets lower. When there is one marshmallow the velocity increases because it is equal to the impulse that is given to all of the other different marshmallow masses. When the marshmallow mass increases the velocity decreases because it is still equal to the same impulse. good!
In our third experiment we learned something different. The force, and time mass, and velocity stay the same but the height of the marshmallow increases. The higher the marshmallow starts, the amount of time the marshmallow has to fall increases. When the height increases the distance increases.
Error analysis
In our experiments there are many things that we could have done better on. Something we could have done to improve was to get a machine like a fan to blow out the marshmallow so that the same amount of force would be applied more precisely. We could have also recorded all of the trials to try to get a better estimate of where the marshmallow landed each time. what do you mean all of the trials?
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