Key Question- How does the length of the tube affect the distance traveled by the marshmallow?
IV: Length of the tube
DV: Distance traveled
CV: How far from the ground and the force of the blow
Procedure-We will use three different tubes with the lengths of 29.5 cm, 25.4 cm and 12.7 cm. We will make a line of yard sticks on the ground on the centimeters side so we will be able to measure how far the marshmallow traveled. Our starting position will be at 0 cm. The marshmallow will be located on the side of the tube closest to the mouth and the other end of the tube will be located at 0 cm. The blow will be the same force each time. We will then measure how far the marshmallow traveled in centimeters. This experiment will be taken place three times for each of the three different tube lengths and find the average per size. excellent!
Analysis:
Size of the tube (cm) How far the marshmallow travelled (cm)
29.5 cm 256.5 cm
(large) 254 cm
241.3 cm
Average: 250.6 cm
Size of the tube (cm) How far the marshmallow travelled (cm)
25.4 cm 157.5 cm
(medium) 165.1 cm
167.6 cm
Average: 163.4 cm
Size of the tube (cm) How far the marshmallow travelled (cm)
12.7 cm 94 cm
(small) 101.6 cm
106.7 cm
Average: 100.8 cm
The data shows that if the marshmallow is blown with an equal force, the marshmallow will travel further as the tube gets larger.
good
Experiment 2:
Key Question- How does the height of the tube from the ground affect how far the marshmallow travels?
IV: Height from ground
DV: Distance traveled
CV: Pressure of blow and length of tube
Procedure- In our second experiment we will test how the height from the ground will affect the distance traveled by the marshmallow. We will start at 0 cm every time, keep the length of the tube the same and the force of the blow the same, and we will start with the marshmallow close to our mouths. We will collect three lengths for each height and find the average. The heights we will use are 5'2, 6'8 and 2'6.
Analysis:
Height From Ground Distance Marshmallow Traveled
5'2 132.08 cm
6'8 162.56 cm
2'6 48.26 cm
The data showed the higher the tube is from the ground, the further the marshmallow will travel.
good
Experiment 3:
Key Question- How does the force of the blow affect how far the marshmallow travels?
IV: Force of the blow
DV: Distance traveled
CV: The height from the ground and the length of the tube
Procedure- In the third experiment, we will discover how the force of the blow affects the distance traveled by the marshmallow. We will start off at 0 cm each time with the marshmallow close to our mouth and the length and height of the tube will stay the same while the only thing changing will be the force of the blow. We used small, medium and large forces and tested each force three times and found the average.
Analysis:
Force of Blow Distance Marshmallow Traveled
Small 43.18 cm
Medium 132.08 cm
Large 172.72 cm
verbal statement for this one??
Conclusion:
In the first experiment, we tested how the length of the tube affected the distance. This is another way of testing the time. We kept the marshmallow in the tube closest to our mouth. We made a conclusion that the longer the tube is, the further the marshmallow will travel because it will have a higher velocity. The velocity will grow with the length because it will have more time more time for what?. The more time it has the higher velocity it will have. This is proven in the equation J = Δp F x t= mΔv. We discovered that the higher velocity the marshmallow has, the further it will travel. In the second experiment we tested how the height from the ground affected the distance the marshmallow traveled. The velocity, mass, force and time were the same with only the height changing. The higher the tube was, the further the marshmallow traveled. This is only because the marshmallow had more time in the air to travel, but it left the tube with the same velocity and momentum. It had more time in the air but the same amount of time with force applied to it, that is why the time in the equation is equal. kind of, but seems confusing.... needs clarified In the third experiment we tested how the force of the blow affects the distance the marshmallow traveled. We discovered that the greater force put on the marshmallow, the further it will travel. This is proven in the equation F x t= mΔv. The stronger the force, the higher the velocity and momentum causing the marshmallow to travel further. Our experiments would have been more accurate if we had a machine that blew for us so we knew it was constant when it was supposed to be in experiments 1 and 2. Also if we could see exactly where the marshmallow landed our data would be more accurate. why couldn't you see exactly where it landed? how could you fix that?
pretty good... height needs explained a little more, and all could be clarified a bit...
