Our hypothesis was the rapier plane in print paper would fly the farthest distance, because it had a bigger wing span and light weight paper. Also, we think that the dart plane in construction paper would fly the shortest distance because it has a small wing span and weighs more. We learned that aerodynamics is the study of forces and the resulting motion of objects through air. During this experiment we learned something new, four forces affect a paper airplane. They are, thrust, the forward motion or speed of the paper airplane, for our paper airplanes this is provided by your throwing the plane forward.
FOR A MOMENT, THINK OF AN AIRPLANE MOVING FROM LEFT TO RIGHT AND THE FLOW OF AIR MOVING FROM RIGHT TO LEFT. THE WEIGHT OR FORCE DUE TO GRAVITY PULLS DOWN ON THE PLANE OPPOSING THE LIFT CREATED BY AIR FLOWING OVER THE WING. THRUST IS GENERATED BY THE PROPELLER AND OPPOSES DRAG CAUSED BY AIR RESISTANCE TO THE AIRPLANE. DURING TAKE OFF, THRUST MUST BE GREATER THAN DRAG AND LIFT MUST BE GREATER THAN WEIGHT SO THAT THE AIRPLANE CAN BECOME AIRBORNE. FOR LANDING THRUST MUST BE LESS THAN DRAG, AND LIFT MUST BE LESS THAN WEIGHT.
Have two people fly it and see which plane goes the furthest, making sure to match the same amount of force used to throw the planes. Then, have one person to throw both planes and see if the results match, using the same force. Then switch persons and repeat. The controlled variable would be the how hard the plane was thrown. PART 2 Purpose: In this experiment I would like to see if the color of a bedroom affects the amount of sleep.
So you see, Newton's 3rd law can explain your balloon powered car. air shoots out the back at high speed and the car moves forwards (more or less) at low speed. So the force used to accelerate all that air backwards has an opposite force on the balloon (reaction) which is tied to the car so pushes in the opposite direction. Well the air's coming out fast in the beginning but thats when the car is only just moving, it takes a while to speed up and it takes even longer if you have a heavy car. So you may be able to argue it shows that f is proportional to Mass x acceleration (but to be honest I think that would be stronging it a bit - balloons don't seem to give very constant thrust.
Show how you determined the total height of your alien and include what units you used to measure. 1 point Slide 5: The total area of the alien must be given (find the area of each polygon and add all of the areas together – show all of your work). 3 points
The twirling slows down the seed and allows it to catch a crosswind that will carry it farther away in order to disperse it. It is similar to a propeller because of the wing of the seed has the shape of one blade of the propeller fan. I could help students to understand how a propeller works or why the maple seed twirls when it falls by explaining the idea of air resistance and surface area. The maple seed falls slowly down to the ground because of the low air pressure that is created just above the thicker edge of the wing of the maple seed. This low air pressure results from the motion of the wing as it travels down in a spiral.
Take samples from the bags and place them in front of the appropriate bag on a clean surface. Using forceps weigh each kernel on a digital measure scale. Record the data on a separate piece of paper in grams. Follow the procedure for other two brands of the popcorn. Now, to figure out the volume of the kernels by volume measuring cups, fill up the cups by 500 ml of water.
We decided to use two pieces of paper to make a single airplane; this was our way to make it heavier, as weight was our independent variable. After selecting our dependent and independent variables, it was on to choose a hypothesis that captured our thoughts. We hypothesized that the plane that was made from the two pieces of paper would fly a longer distance than the one made from a single piece of paper. This would also act as our alternative hypothesis. Our statement of equality, or our null hypothesis would be that the weight of the paper planes would not yield significant differences in the distance traveled by the two.
The population in statistics refers to the “collection of all outcomes, responses, measurements, or counts that are of interest (Larson, & Farber, 2009).” Buying bags from different stores assures a true sample of the population of all 1.69 oz bags of plain M&M candies. Once bags were purchased students were instructed to open each bag individually and record the number of candies of each color within the bags. This information was then entered into an excel spreadsheet and separated by individual bags. These individual results were then combined together into a single data set. Data refers to the “information coming from observations, counts, measurements, or responses
Part 1: Diary Day | Provenience | Description | Classification | Type | Day 1 | Home Kitchen | Mango Peel and core, peels from 3 oranges, cores from 4 apples. | Perishable food | Eco-Artifact | Day 1 | Boot- room(Recycling bins) | 1 empty can of pop, 2 plastic wrappings, 15 written on pieces of paper | Recyclable items | Artifact | Day 1 | Home Bathroom | Long thin white string (Dental floss), round smooth tube(tooth paste tube), small round tube (mascara tube ) | Personal Hygiene | Artifact | Day 2 | Home Kitchen | 1 plastic wrapping to a pound of Hamburger, 2 empty cans of tomato sauce. | Garbage Disposal | Artifact | Day 3 | University garbage | 1 medium sized empty ice-cap cup, paper plate. | Garbage Disposal | Artifact |