# Archimedes Challenge

Physics 11 (Ms Jackson)

The Physics of Ancient Inventions

Ancient Invention: The Catapult

By: Jaxson Abdou

Date: November 28, 2017

History:

During the middle ages many weapons were created to help in battle. The Catapult dates back to around 400 BC, where it was invented the Greek in the city, Syracuse. The catapult was mainly built due to the rising height of castle walls. There are many different types of catapults including: Ballista, Mangonel, and Trebuchet. Our catapult is a Mangonel. During battle different objects were thrown from the catapult, these included: dead bodies, rocks, and later on, grenades.  When first built they were strictly made and used to win battles, but we still use catapults. We do not hurl projectiles at castles anymore, but we do build them to have fun.

Catapults are full of physics. From the power that the catapult has, to the distant it can force an object to travel. Our Catapult also includes elastic tension to create its power. Potential Energy is also involved due to the position of the hand. This potential energy is not due to gravity though, it is due to the elastic force. Most of the power and energy of a catapult is made from tension. Catapult physics is basically the use of stored energy to hurl a projectile.

Finding Height:

Mass: 0.5kg

Vf: 10 m/s

Vi: o m/s

g: 9.81 m/s

h:?

Finding Efficiency:

mass: 0.5kg

time: 2 seconds

Height: 5.1m

g: 9.81m/s

Design and Building Process:

Day 1: At first we thought we were gonna make a cannon. So the first couple of days was full of drawing the machine, and making of list of supplies.

Day 2-4: After finding the design and supplies we spent a day making the cannon, these supplies included beer cans, gun powder (made of matches), and a wood platform. When finished we tested the cannon and came to the conclusion that it would not be appropriate to bring to school. The results were too powerful.

Day 5-6: After changing our Invention from the cannon to the catapult, we had lots of work to do! This included: making design, getting materials, finding the history of the catapult, and explaining the physics behind the catapult. Not gonna lie, we did a lot of procrastinating.

Step 1:

Step 2:

Step 3:

Step 4: Final Product

Challenges:

Along the way we faced many challenges. Our first challenge was losing a valued partner due to differences, that could of been dealt with a lot better. The second challenge we faced, was having to change our project entirely due to the overwhelming power of the cannon. Lastly, when making the catapult we had blown a fuse in the garage. Overall this was a fun project, but I would definitely do it different next time.

References:

https://www.real-world-physics-problems.com/catapult-physics.html

http://www.ancient-origins.net/artifacts-ancient-technology/catapult-long-reaching-history-prominent-medieval-siege-engine-004418

# 3 Reasons why

3 Reasons why I would not want to be stuck on this island:

This past month I have been reading the Lord of the Flies written by William Golding. I have came to the conclusion that being on the island would be a complete disaster and WOULD NOT BE FUN. Here’s why.

1. Everyone Would Smell

Imagine being on an island with multiple teenage boys. Not only are they teenage boys, they also haven’t showered for months. Months of sweating, eating, hunting, and playing the dirt, without showering. Sounds fun to me…Not. My mom won’t even allow me to eat dinner after practice until I shower.

2.  It would be a full time babysitting job!

The island not only has a bunch of stinky boys, it is also filled with little kids know as litluns. Could you babysit little kids everyday at the age of 12? I couldn’t. You would have to feed them, watch them, and put them to sleep, all while trying to take care of yourself and survive. If you lose Major props to Ralph for trying to taking care of all the little things while also trying to maintain order, as a kid!

3. There would no girls

Not only would being with a bunch teenage boys suck, there would also be no girls. Can you imagine trying to stay civilized while having no women to control you? I can’t. Not only would the island be less fun, there would also be no chance to repopulate and start civilization on the island. Which means life on the island would be a one way road to death.

# What it means to be human…

Humans need to be able to communicate

Humans need to interact with others

Humans look for happiness

Humans want to express their feelings

Humans like to help others in need

Humans like to communicate in order to share and gain knowledge

Humans need others to support

Humans are violent and mean and even greedy

Humans hurt other populations because humans are racist

Humans are vengeful

Humans are sympathetic and we can share/help

Humans are oblivious when it is not happening to us

Humans can be united by the simplest things like dancing

Humans can find joy

The novel The Giver written by Lois Lowry is the most interesting books I have ever read. This book is set in a society where no bad things exist. However to achieve a peaceful utopian city they are forced to take away many good things in life including colour and smell. You may be wondering where all these memories go, well this is where the Giver comes into place. The society has one man who holds all the memories of the good and bad, almost every memory ever happened to man. The story showed me that the bad in the world can sometimes lead to positive experiences.

# What’s in my junk food?

Coca-cola is a carbonated drink. Coca-cola combines refreshment with taste. I have always enjoyed Coca-cola. There is nothing better then a nice cold Coca-cola on a hot summer day. Even though Coke isn’t always the healthiest choice, I tend to drink about 3 cans a week. Drinking Coca-cola can cause serious issues for your body in the future. Drinking coke can result in cavities due to the sugar. The sugar can build up and cause plaque. Drinking coke can also lead to weight gain because of the large amount of sugar intake.

https://wellnessmama.com/379/reasons-to-avoid-soda/

5 Shocking Facts About Coke (Coca Cola)

# May Lab Reflection

Lasagna Roll-Ups

1. Why did you choose to reflect on this lab?
2. Did you enjoy the lab? Why or why not?
3. Did your product turn out the way you had hoped? If yes, what helped? If no, why did it not?
4. Did you group work well together during the lab? Why or why not? (i.e. were there any issues that came up/how did you solve them?)
5. If you were to do this lab again, what might you do differently? Why?

Reflection:

I chose to reflect on this lasagna Roll ups because they were the best tasting lab in my opinion. The lab was fun, easy, and tasty. I really enjoyed this lab due to the fact that it was a lot simpler then it would seem. Our product turned out very well, It stayed together and was delicious at the end. Somethings that helped was just following the directions and working as a team. Our group worked pretty well together, Morgan was a great leader during the lab and everyone got along. The only issue that came up was who was gonna get 2 lasagna rolls. If i were to do this Lab again i would add some more cheese, just because i like cheese. All around this was a good lab. 🙂

# Chili Competition Reflection

Chili Competition Reflection

Group: Michael, Arther, Melia

Reflection:

I liked the chili project very much. It gave us the opportunity to experiment with different recipes. This project gave the groups the chance to really experience what its actually like to cook. Through the whole week our group worked very smoothly, we kept on task and were able to have fun doing it. Our chili tasted great through the whole journey, we made sure to taste it as we cooked. I believe our chili was really good, and I can see myself making it at home in the future. Im not sure of what the judges thought about the chili but i personally liked it. Our Chili could of been a little more pleasing to the eye though. Our plating skills were the best. Our cheese braid tasted very good, but didn’t look very nice either. The cheese braid was short and thick. All together the chili went very well and i would do it again. This was a very fun assignment!

# \$20 Potato Day

Group Members:

Morgan, Isaiah, Jaxson, lina, Henry

Unit 2

Block C

Breakfast: Hashbrowns

1 potato= 63 cents

Red pepper= \$2.10

Bacon 1 pound= \$5

Total cost= \$7.73

Lunch: Potato pancakes

1 potato: 63 cents

1 egg (6 pack) : \$3

Garlic: 1\$

Total price: \$4.63

Dinner: Baked potato

1 potato= 63 cents

sour cream= \$2

cheese= \$3

total cost= \$5.63

TOTAL PRICE: \$17.99

# Reflection March/April

1. Why did you choose to reflect on this lab?

I chose to reflect on this lab because in my opinion this was my favourite lab. The portions were very big, and I will never say no to more food. This dish was also very tasteful and I could see myself eating this at home. I also only had the pictures to this lab…….

2. Did you enjoy the lab? Why or why not?

I loved this lab because it was tasty. It also had large portions. I can also see myself making and eating at home.  This dish was also simpler then i thought it was going to be

3. Did your product turn out the way you had hoped? If yes, what helped? If no, why did it not?

Our groups product turned out perfectly. The noodles were perfectly cooked and chicken was tender. One thing our group did very well was cooking everything together. WE made sure to keep the ingredients moving around the pot so the tastes would blend.

4. Did you group work well together during the lab? Why or why not? (i.e. were there any issues that came up/how did you solve them?)

Our group working fairly well during the lab. Sometimes we talk to much which makes us the slowest group. But in the end we get the product we were looking for. Slow and steady wins the race.

5. If you were to do this lab again, what might you do differently? Why?

If I was going to this lab again one thing I would definitely add is more spice. I really enjoy spicy foods so I can see myself adding some more spice just to give it that extra kick. I would also add more soya sauce, i didn’t really taste the soya sauce as much as i wanted to

# Rice/Noodle take home assignment

Recipes including rice or noodles:

Breakfast:

Breakfast Fried Rice

This dish has a soft boiled egg on top of fried rice

Lunch:

Mongolian Beef Ramen

This is a Mongolian dish which includes ramen noodles, topped off with beef  and veggies.

Dinner:

Southwest Chicken Rice bowl

The southwest chicken bowl is a bowl full of flavours including chicken, and flavourful fried rice

I forgot to get a picture before I ate it…… so I found one online

Ingredients:

1 cup of rice—–237 ML

1 3/4 cup of vegetable broth—— 414 ML

chicken wings

salt, pepper, garlic powder on chicken wings

Teriyaki Sauce half cup——-  118 ML

Rice recipe .pages-1bkz9m8

# Trigonometry

In this section I learned about trigonometry and this included SOH CAH TOA

SOH  CAH TOA helped me when it came to finding each side of a right triangle

for example if the triangle gives you the hypotenuse and opposite then u should use the sin this is why it is SOH

And you use cos when u have the Adjacent and  hypotenuse