Paper Helicopter Lab by Joanne https://padlet.com/jbrown26/ftzs0nrx0wcqa62t Intro to Forces lab en-us 2020-04-16 03:11:44 UTC 2023-05-07 02:17:13 UTC hello@padlet.com https://padlet-uploads.storage.googleapis.com/474149309/4ff9362f44d6868b043b115c5f21799a/paper_helicopter_2.jpg Use the various options here in Padlet to present your data to the class. jbrown26 https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509786023 2020-04-16 03:11:44 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509786023 Include a description of your lab. Question, variables. jbrown26 https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509786024 2020-04-16 03:11:44 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509786024 Don't video evidence jbrown26 https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509786025 2020-04-16 03:11:44 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509786025 Claim and Reasoning jbrown26 https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509786027 Do need calculations? What is the answer to your question? Explain how you know this]]> 2020-04-16 03:11:44 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509786027 Your data jbrown26 https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509786028 2020-04-16 03:11:44 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509786028 Hannah + Jack https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509851712 Jack:
How does altering the mass of the helicopter change the velocity?
Independent variable: Mass
Dependent variable: Velocity (m/s)
Controlled variable: Height(m)


]]> 2020-04-16 04:22:37 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509851712 Andre + Ryan 2306641 https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509852010 Andre:
The lab measured the amount of spins the helicopter did from 1 meter high up before hitting the ground

Independent variable: The length of the wing (cm)
Dependent variable:  The amount of spins the helicopter does before hitting the ground (from 1 meter high up)
Controlled Variable: Starting height Weight of paperclip]]> 2020-04-16 04:22:57 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509852010 Andro, Olivia https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509852200 The lab measured the time it took for the helicopter to descend when the length of the helicopter blades was changed.
Independent variable: Length (cm) of helicopter blades
Dependent variable: Time (seconds) it takes for the helicopter to reach the ground
Controlled variable: Weight of the paperclip, distance from the ground.]]> 2020-04-16 04:23:12 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509852200 Joshua Kim and Shreya https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509852483 Does the helicopter's wingspan affect the speed of its descent?
Independent Variable: Wingspan (cm)
Dependent Variable: Speed of descent (cm/s)
Controlled variable: Material of paperclip, starting height]]> 2020-04-16 04:23:32 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509852483 Zoey and Justin https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509852575 Hypothesis: As the wingspan of the paper helicopter increases, so does the average velocity of the helicopter, as it falls.
Independent variable: total wing length (cm)
Dependent variable: velocity (cm/s)
Controlled variables: material, width of wings, height of the drop (2 meters), weight of base, length of base
]]> 2020-04-16 04:23:41 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509852575 Kate and Stanley 2302073 https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509852636 Does increasing the length of the propellers increase the time it takes to get to the floor?
Independent variable:
length of the propellers (cm)
Dependent variable:
Time it takes the helicopter to get to the ground (s)
Controlled variable:
Height (m)

]]> 2020-04-16 04:23:46 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509852636 Chetan + Jack O https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509853826 Chetan: 
what affects will making the size of the helicopter much bigger have on the RPM of the helicopter]]> 2020-04-16 04:25:04 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509853826 https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509854383 Ryan  The lab measured the effect of mass (x) on the paper helicopter's flight time (y)
independent variable =mass (g)
dependent variable = flighttime (s)
control: height, atmospheric pressure
Hypothesis = An increase in mass will reduce the flight time (y)]]> 2020-04-16 04:25:44 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509854383 Data table https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509856355 Height: 1.8 meters
Wing length(cm).   Time(sec)
First test:
4.5 cm.   1.1s
9    cm 1.6 s
Second test:
4.5cm  1.3s
9 cm  1.8s
Third test:
4.5 cm 1.3s
9cm 1.7s

]]> 2020-04-16 04:28:06 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509856355 Data graph https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509856392 Jack:
Height: 0.7m]]> 2020-04-16 04:28:09 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509856392 https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509856588 Ryan 
Lab Results: (CLAIM)
An increase in mass reduces the paper helicopter's flight time

TITLE: Flight Time of Paper helicopter with varying amounts of mass dropped from 1 meter

]]> 2020-04-16 04:28:23 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509856588 Data Table: https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509856675 2020-04-16 04:28:30 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509856675 Data: https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509857103 Shreya:
Data table on the effect of wingspan on a paper helicopter

Wingspan | Time taken | Distance
]]> 2020-04-16 04:28:57 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509857103 Data https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509857475                      Big      Small
Height         3 ft       3ft
Time            2.64s   2.86s
rotations     2.5        7.5
size           5.3 0.6]]> 2020-04-16 04:29:22 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509857475 https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509858423 Ryan
Reasoning: A greater mass will result in a greater gravitional pull.  The gravitational force acts down upon the object, and between the 5g and 12g helicopter, the 12g helicopter has a greater gravitational pull, 
117.6N>49N]]> 2020-04-16 04:30:24 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509858423 Claim and Reasoning 2302073 https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509858567 Claim: If you increase the length of the propellers, then it takes longer for the helicopter to get to the floor.

Reasoning: Longer proppellers would increase the air friction which makes the helicopter take longer to fall. In our testing when the longer the helicopters proppellers were the more time it too for the helicopter to reach the ground.]]> 2020-04-16 04:30:34 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509858567 Video evidence https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509858960 Jack:]]> 2020-04-16 04:30:59 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509858960 Claim and reasoning https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509859067 Jack:
Claim: increasing the mass of the helicopter increases the velocity.
Reasoning: The more mass the helicopter has, the more energy it has therefore increasing the velocity and decreasing the time it takes to reach the ground.

1 paper clip
v=0.7m/0.8s
v=0.875 m/s 

2 paper clip
v=0.7m/0.7s
v=1 m/s

3 paper clips 
v= 0.7m/0.6s
v=1.667 m/s

]]> 2020-04-16 04:31:06 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509859067 Data https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509859468 Length of wings and time]]> 2020-04-16 04:31:17 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509859468 Helicopters https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509859638 Photos of the helicopter blades]]> 2020-04-16 04:31:29 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509859638 Graph of your data (logger pro) jbrown26 https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509859972 usually indep variable (X axis)
dep variable (Y axis)]]> 2020-04-16 04:31:52 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509859972 Claim and reasoning https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509861587 Claim: The wingspan of the handmade helicopter does increase the velocity of the helicopter as it falls, but only to a certain point until the materials of the helicopter fail, in which case the helicopter would drop rather rapidly.

Reasoning: The increase of increase of time in the air corresponding to the wingspan is to be expected (surface area, air resistance, etc). That the helicopter would fail when the wingspan became too long is reasonable too. This is mostly due to the physical constraints of paper, and both its length and its thickness; the wings could not keep at 90° because there was too much force pushing up the wings (air resistance) and too much force  pushing down the base of the helicopter (weight of paper + tape + weight of coin). Of course, it must be kept in mind that as the wing length increase, so does the total weight of the helicopter, so that might be a factor too.]]> 2020-04-16 04:33:33 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509861587 Claim and Reasoning https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509861707 Josh: Having a larger wingspan will slow down the descent of the object.

This is because more drag will be created by adding more surface area. This is also seen in real life, where parachutes are used to create drag and slow down the object. Thanks to this drag, the time it takes to descend is slower, and as a result, the speed of descent is slower.

Shreya
Claim: The larger the wingspan of the helicopter, the more time it takes to come down. 
Reasoning: In the data taken as the wing length increased the time it took to come down was more. When the wingspan was 6cm it took 1.06secs however, when it was 8cm it took 1.12 secs. Although this may not seem as a drastic increase it did  take more time. The wingspan also affected the speed due to the amount of time it took. Over time since the time increased, the speed was slower.  ]]> 2020-04-16 04:33:42 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509861707 Graph https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509863535 Shreya:]]> 2020-04-16 04:35:50 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509863535 Claim and Reasoning https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509868765 Claim: if you increase the size of the helicopter the rpm will be less

Reasoning: The bigger the helicopter, the more mass it h as, which drags it down creating more friction and less spinnng. It is also because the "propellers" are ]]> 2020-04-16 04:42:03 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509868765 Data s220739 https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509869482 Hannah: 
Height: 179cm
Time:]]> 2020-04-16 04:43:02 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509869482 Data table https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509871698 Jack
Time/Velocity vs mass:]]> 2020-04-16 04:45:51 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509871698 Data 2306641 https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509871731 2020-04-16 04:45:53 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509871731 Olivia's Graph https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509872714 2020-04-16 04:47:10 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509872714 https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509879383 ryan - graph
short analysis: As expected, the flight time decreases as the mass increases. The line is not straight which means that the data points do not share a linear relationship.]]> 2020-04-16 04:55:35 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509879383 Claim and reasoning: https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509879489  claim: How dose the size of the blade length impact the time it takes to fall? if the length is smaller dose that take time off the fall or increase it.
 reasoning: Looking through data  the smaller the length the less time it takes to fall, with the blade length of 4 cm it took 0.48 seconds to hit the ground but with the blade length of 7.5 it took 0.73 second to hit the grown. that shows with smaller blades the helicopter falls faster than bigger blades.]]> 2020-04-16 04:55:42 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509879489 Andro's graph https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509880890 2020-04-16 04:57:24 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509880890 Graph 2306641 https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509881736 2020-04-16 04:58:30 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509881736 Graph https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509887248 *best fit graph, does not absolutely present data accurately]]> 2020-04-16 05:05:15 UTC https://padlet.com/jbrown26/ftzs0nrx0wcqa62t/wish/509887248