IV: Height of the shooter
DV: Distance the marshmallow travels (inches)
CV: the marshmallow and shooter
Q2: How does the shooting device's texture affect the distance traveled by the marshmallow?
IV: Different paper used to shoot the marshmallow (wax paper vs. Folder paper vs. binder paper)
DV: Distance the marshmallow travels (inches)
CV: Height of the shooter and force of blow
Q3: How does the strength of the blow affect the distance traveled by the marshmallow?
IV: How much air is blown into the shooting device
DV: Distance the marshmallow travels (inches)
CV: Height of shooter, shooting device, and marshmallow
Investigate
Q1 procedure
1. Have one person in the group do all of the blowing for the experiment to keep the results as controlled as possible. good!
2. For each height, have the blower insert the marshmallow into the tube and blow the estimated same amount of force to force the marshmallow out of the tube. The tube will be made out of the same material for each test in this experiment and it is made out of folder paper. We used scissors to cut out an 8 by 11 size and then rolled it into a tub only wide enough to fit the marshmallow. what tube? how did you make the tube?
3. Each time the marshmallow is blown out, mark the estimated spot it landed if it cannot be determined exactly.
4. Write down the exact spot measured in inches.
5. Repeat the experiment with the new height keeping everything else, except the height of the shooter, exactly the same.
Q2 procedure
1. Have one person in the group do all the blowing in the experiment to keep consistent blowing forces. For this experiment, you will need three different types of tubes to shoot the marshmallow out of. Each time you blow the marshmallow out of one of the three tubes, you mark down where it lands then proceed to blow the marshmallow out of the next one. not sure what the IV is in this one? Read it and see if you could follow it if this is all you knew...
2. For each blow, have the person put the marshmallow in the tube in roughly the same spot as each to make sure the same amount of time the blowing is occurring. good
3. Each time the marshmallow is blown out, record the estimated landing spot of the marshmallow and then write it down for each different tube that is used.
4. After recording the distance it went with one of the tubes, proceed to repeat all of the previous steps with the next tube whether it is the folder tube, binder paper tube, or wax paper tube.
Q3 procedure
1. Have the person shooting the marshmallow be the same person to keep consistent shooting.
2. Have the person shooting the marshmallow blow lightly, a normal amount, and really hard for the three shots.
3. After, record the locations of where each marshmallow fell on the ground by measuring it from where it was originally shot.
Data
Experiment 1 (Distance of Marshmallow VS. Height of shooter)
Ground - 191 in.
Chair - 206 in.
Table - 242 in.
VM: As the height of the shooter increased, the distance traveled by the marshmallow increased as well.
Experiment 2 (Distance of Marshmallow VS. Change of type of shooting device)
Folder - 195 in.
Binder - 142 in.
Wax - 104 in.
VM: If the shooting device had a thicker type of paper, the marshmallow traveled further
Experiment 3 (Distance of Marshmallow VS. Force of Blow)
Small - 96 in.
Medium - 168 in.
Hard - 314 in.
VM: As the force of the blow increases, the distance of the marshmallow traveled also increased.
Model
Momentum is mass in motion which in more understandable terms means anything that has velocity and mass, has momentum. Therefore, the equation for momentum to mass x velocity. However, the bigger part of this experiment is what we can see from that. The change in momentum or the impulse which is defined as Force x time = mass x change in velocity or Delta V. The reason that the change in momentum is so important is because in other experiments that were conducted where the tube's length was changed, this affected the amount of time that the force was acting on the marshmallow. This allowed for the marshmallow to go further, the more time the blow was concentrated on the marshmallow. While we did not change the tube length in any of our experiments, we did, in our third experiment, change the amount of force that acted on the marshmallow and the change of the force. We changed how much we blew into the tube and thus changed the amount of force that acted on the tube. The reason that we can tell that more force is acting on the marshmallow, is because with the further distance, there must be a difference in either how much force is acting on the marshmallow or how much time that force is acting on the marshmallow. The way we can tell that it is more force is because we kept the tube length the same size and therefore, the force acted on the marshmallow must be the one that is manipulated to give the marshmallow the further length. more explanation on force... how can you see this in the equation? what did you find out? The other part that was very important in this experiment that we tested was the amount of time the marshmallow had to fall. In our first experiment, we tested how the height of the shooter affects the distance traveled by the marshmallow. The higher the shooter was, the further it went. This was because the higher the shooter was, the more time the marshmallow had to fall because it started higher up in the air. The marshmallow had the same speed leaving the tube because the tube stayed the same length for the entire experiment. The reason that the length of the tube equates to equal speed, is because if the tube is longer or shorter in each test, the concentration of the blowing force is less or more depending on the length of the tube. Since in this experiment the tube length stayed the same yet the distance traveled by the marshmallow is longer, the time for the marshmallow to fall must be the reason why the marshmallow went a further distance because we are eliminating other variables in the equation that would allow the marshmallow to go further. Therefore, the marshmallow traveled further due to the amount of time the marshmallow had to fall after exiting the tube. show using the equation how the mallow had the same SPEED when leaving the tube, and thus you know that it was the height that caused the change in distance
pretty good, but you need some more explanations of the equation...
Evidence
There were a few things that we could have done to improve our experiment. The first problem we had was that we didn't use flour to put on our marshmallow. Therefore, the marshmallow became increasingly stickier as we went on with our experiments. This might've caused later experiments to be less accurate as opposed to when we first began. good Another problem, that I'm sure everyone will write down, was the inconsistent force of blow. yep! It was really difficult to blow each marshmallow exactly the same as the previous blow where the experiment required that and could have created some variability in results. There, what we could do to improve our experiment to make it more accurate is that we could use the flour, have a pressurized blowing device to give consistent blows, and have repeated the experiment to ensure our results are consistently those that we would get every time. excellent analysis!
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