AC Student - Get Info Here!
Before you read what we are doing...can you answer this question? These questions will help prepare you for the Milestones at the end of the year!
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Hey class...I can post a video of us doing this, but did not know which you preferred? Like professional ones or ones of me doing them? Let me know in the comments. Can you explain this concept?? Can you do this experiment at home? Record yourself doing this and explain this concept to me and I will replace it with some of the flipgrid work that is required! :)
34 Comments
Kortlyn Riley
3/23/2020 10:07:30 am
This experiment is just like the one you did with Amelia on day 1. It uses Newtons 1st law. Newtons First law of Motion states "An object in Motion will stay in motion and an object at rest will stay at rest unless acted upon an unbalanced force." This law is one of the main reasons why when the butter knife hit the stack of coins they did not fall over. When the butter knife is sliding across the table at that speed the amount of friction is very small which makes sure it does not slow down. If the butter knife moved any slower the tower would topple.The inertia also helped play a huge role of why the glass did not move when you pulled it. If there was less mass to the tower it would most likely topple.
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Laurel Holder
3/24/2020 06:05:12 pm
Kortlyn!!! I loved loved loved how you applied it to a demo that was done previously. I am glad this concept is now mastered by you! Keep up the great work.
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Olivia Hale
3/23/2020 11:39:15 am
This experiment shows Newton’s first law. The speed when the butter knife slid under the stack was fast enough with little friction to prevent the tower of coins from falling. Any slower and it would have fallen.
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Laurel Holder
3/24/2020 06:05:50 pm
Olivia, correct! I liked how you even stated what would happen if the knife moved slower.
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JC
3/23/2020 12:04:01 pm
So for flipgrid i have to use my voice...... and answer the question.
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Laurel Holder
3/24/2020 06:06:41 pm
That would be ideal! Let me know if any problem arises. I reset it so there shouldn't be a code that is needed.
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Jayden R
3/23/2020 12:07:02 pm
This experiment is applying Newtons first law. This law states that an object at rest will stay at rest until something, an unbalanced force makes it move. Also, what is the flip grid code.
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Laurel Holder
3/24/2020 06:04:12 pm
Jayden! Great response and flip grid should not have a code :/ I will look into why it is asking for one!
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Syria Timothee
3/23/2020 12:47:37 pm
The video shows Newton's first law. This is because there wasn't a lot of friction. Newton's first law says that an object will stay in their state of motion or rest unless its acted upon an unbalanced force.
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Laurel Holder
3/24/2020 06:07:24 pm
Syria thank you so much for your response. Your analysis was correct. Keep the good work up.
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Joy Dikko
3/23/2020 12:59:28 pm
This science demo is a great example of Newton's First law of Motion. The object at rest, in this situation, would be the stacked coins and the object in motion, the knife, stay at rest or in motion until they collide with each other. This collision shows that coins at the top of the stack don't move, because of inertia, while the coin at the bottom of the stack is pushed out from under the stack. Just like the table cloth trick, if the knife did not keep a constant speed and slowed down, the whole coin stack would start to move and possibly topple. :)
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Laurel Holder
3/24/2020 06:08:07 pm
Joy! Your comment made me smile because it is accurate and perfect. Keep up the great work and thanks for the post.
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Ryan Estrada
3/23/2020 01:07:16 pm
The video shows Newton's first law of motion because force is being applied on the coin on the bottom and with little friction and high speed, it doesn't make the other coins fall over.
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Laurel Holder
3/24/2020 06:09:26 pm
Ryan, thank you for your post today, and you are correct in your response. Thank you for using all the proper vocabulary!
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Justin Winn
3/23/2020 01:16:26 pm
The experiment shows newton first law of motion because the knife is moving so fast it only applies force on the bottom coin so the rest of the tower doesnt fall.
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Laurel Holder
3/24/2020 06:11:16 pm
Yes, I am so glad we are saying it is the first law! Keep up the good work Justin :)
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Nathan Garcia
3/23/2020 01:27:49 pm
The video shows the first law of motion, it states "an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force." due to the motion of the knife speed it only applies force to the last coin, therefore the others wont fall.
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Laurel Holder
3/24/2020 06:13:00 pm
Nathan! Thank you for such a well rounded response. Keep up all the good work.
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Destiny Bell
3/23/2020 01:55:55 pm
The coin experiment is an example of Newton’s 1st law of motion. The speed of the knife and small amount of friction allowed the coin tower to stay upright.
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Laurel Holder
3/24/2020 06:12:14 pm
Destiny, great explanation on how it works!
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Audrey Vargas
3/23/2020 02:58:13 pm
The demo shows Newton's first law of motion because the demo shows the butter knife when under the stack of coins which cause small amount of friction, cause it not to fall.
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Laurel Holder
3/24/2020 06:14:10 pm
Audrey thank you for your post! It is correct and your explanation on how the stack works was spot on.
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Kelsie White
3/23/2020 03:44:48 pm
This showed Newton’s first law of motion. The speed of the knife with the little friction allowed the coin to stay in position.
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Laurel Holder
3/24/2020 06:15:04 pm
Kelsie,
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Melissa Gonzalez
3/23/2020 04:14:26 pm
This is an example of Newton's first law of which the knife is giving off a balanced force. Where it goes by the law where an object that is at rest will stay at rest being the stack of coins. While the object in motion will stay in motion being the knife and coin.
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Laurel Holder
3/24/2020 06:16:14 pm
Melissa, YAY you added almost all the terms that were needed. I enjoyed reading your explanation too (it was correct).
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Sam
3/23/2020 04:31:22 pm
The demo shows Newtons 1st law. The law sates "An object in motion will stay in motion and an object at rest will stay at rest unless acted upon an unbalanced force." The speed the knife moves affects the amount of friction and whether or not the coins would fall.
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Laurel Holder
3/24/2020 06:02:56 pm
Sam! Great response and thank you for telling me what the law was and explaining how it applied!
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alex peeples
3/24/2020 08:22:09 am
This shows Newtons first law because the small amount of friction from the knife's speed allowed the coins to stay in place.
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Laurel Holder
3/24/2020 06:01:06 pm
Alex, thank you for the correct explanation. Keep it up :)
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Olivia Hardman
3/24/2020 11:45:06 am
This video represents Newton's first law of motion. An object in motion will stay in motion unless acted upon by an unbalanced force. The coins on top were the object at rest while the butter knife was the unbalanced force that hit in the coin which created motion. The butter knifes' speed and a little bit a friction was able to keep the coins from falling.
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Laurel Holder
3/24/2020 06:00:16 pm
Olivia, great response and accurate! Keep the good work up.
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Ian
3/27/2020 12:33:16 pm
The video is representing Newtons first law of motion,This law states that an object at rest will stay at rest until something, an unbalanced force makes it move. so yeah... :>
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Cedric
3/31/2020 01:07:39 pm
This experiment demonstrates Newton’s first law. The speed when the butter knife slid under the stack was fast enough with little friction to prevent the tower of coins from falling. Any slower and it would have fallen.
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