Egg on a Sheet - Revision history

imported>Stwikiadmin at 16:08, 2 June 2016

2016-06-02T16:08:40Z

← Older revision		Revision as of 16:08, 2 June 2016
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	{\| class="wikitable" style="color:black; background-color:#ddd; margin-left: auto; float:right"		{\| class="wikitable" style="color:black; background-color:#ddd; margin-left: auto; float:right"
	\| [[Physics]] [[Engineering]]:		\| [[Physics]], [[Engineering]]:
	\| Impulse, Force Transfers		\| Impulse, Force Transfers
	\|-		\|-

imported>Stwikiadmin at 16:08, 2 June 2016

2016-06-02T16:08:24Z

← Older revision		Revision as of 16:08, 2 June 2016
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	== Why This Works ==		== Why This Works ==

	~~<!--~~ ===Short Explanation=== ~~-->~~		===Short Explanation===
	This demonstration shows how Force, Momentum and Impulse are all connected. '''''F'''orce'' is '''m'''ass times '''a'''cceleration, like when a car is speeding up. '''''M'''omentum'' is '''m'''ass times '''v'''elocity, like a car going the speed limit on a road. '''''I'''mpulse'' is when something has a change in momentum in a short period of time, like a car ~~making a sudden stop~~. These three are all happening in this demo.		This demonstration shows how Force, Momentum and Impulse are all connected. '''''F'''orce'' is '''m'''ass times '''a'''cceleration, like when a car is speeding up. '''''M'''omentum'' is '''m'''ass times '''v'''elocity, like a car going the speed limit on a road. '''''I'''mpulse'' is when something has a change in momentum in a short period of time, like a car quickly slowing down. These three are all happening in this demo.
	When the egg is thrown, it is being accelerated forward by the throwers hand, and until it is released it is having a force applied to it. Once released, the egg travels through the air due to the momentum it has, since it is no longer accelerating forward and now travels at a certain velocity. Once it hits the sheet, it experiences the impulse, or sudden change in momentum. Usually, we see an impulse as a near-instant effect, like if the egg splattered against a wall. The sheet, however, absorbs the impact and allows the impulse to take longer. This means the momentum has more time to change, and so the egg doesn't break!		When the egg is thrown, it is being accelerated forward by the throwers hand, and until it is released it is having a force applied to it. Once released, the egg travels through the air due to the momentum it has, since it is no longer accelerating forward and now travels at a certain velocity. Once it hits the sheet, it experiences the impulse, or sudden change in momentum. Usually, we see an impulse as a near-instant effect, like if the egg splattered against a wall. The sheet, however, absorbs the impact and allows the impulse to take longer. This means the momentum has more time to change, and so the egg doesn't break!
	~~<!--~~
	===Full Explanation===		===Full Explanation===
	Force, Momentum and Impulse are all related to each other by the following equations:		Force, Momentum and Impulse are all related to each other by the following equations:
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	{\| class="wikitable" style="color:black; background-color:#ddd; text-align: center; margin-right: auto"		{\| class="wikitable" style="color:black; background-color:#ddd; text-align: center; margin-right: auto"
	\| Momentum		\| Momentum
			\| '''p''' = '''m''' * '''v'''
			\| d/dt '''p''' = '''m''' * '''v/t''' = '''m''' * '''a''' = '''F'''
			\|-
	\| Force		\| Force
			\| '''F''' = '''m''' * '''a'''
			\| '''∫ F''' dt = '''F''' * '''t<sub>f</sub>''' - '''F''' * '''t<sub>i</sub>''' = '''F''' * ∆'''t''' = '''I'''
			\|-
	\| Impulse		\| Impulse
			\| '''I''' = '''F''' * ∆'''t'''
			\| '''I''' = '''m''' * '''a''' * ∆'''t''' = ('''m''' * '''v<sub>f</sub>''') - ('''m''' * '''v<sub>i</sub>''') = ∆'''p'''
			\|}

			Momentum is when a mass has a velocity to it. Force is when a mass has an acceleration to it. The derivative of momentum is force, since the derivative of a velocity is equal to acceleration. The integral of force is called impulse. ''Impulse'' is a change in momentum over time, and can be either positive (indicating an increase in momentum) or negative (indicating a decrease in momentum). If there is no change in momentum over time, then the impulse is equal to zero, and you would use the basic momentum equation. By connecting these three equations, we can accurately map out the situation that happens with the egg.

			{\| class="wikitable" style="color:black; background-color:#ddd; text-align: center; margin-right: auto"
			\|+ Tracing the Egg Throw
			\| '''Part of Movement'''
			\| Egg Wind up
			\| Egg Release
			\| Egg Traveling Through Air
			\| Egg Hits the Sheet
			\| Egg Stopped by Sheet
			\|-
			\| '''Movement Type'''
			\| Force (Positive)
			\| Impulse (Positive)
			\| Momentum
			\| Force (Negative)
			\| Impulse (Negative)
	\|-		\|-
	\| '''p''' = '''m''' * '''v'''		\| '''Equation'''
	\| '''F''' = '''m''' * '''a'''		\| '''F''' = '''m''' *'''a'''(+)
	\| '''I''' = '''F''' * ∆'''t''' = ∆'''p'''		\| '''I''' = ('''m''' * '''v<sub>f</sub>'''(+)) - ('''m''' * '''v<sub>i</sub>'''(0)) = ('''m''' * '''v<sub>f</sub>''') - 0
			\| '''I''' = 0 since '''v<sub>f</sub>''' = '''v<sub>i</sub>''', so p = '''m''' * '''v'''
			\| -'''F''' = '''m''' *'''a'''(-)
			\| -'''I''' = (-'''F''' * '''t<sub>f</sub>'''(+)) - (-'''F''' * '''t<sub>i</sub>'''(0)) = (-'''F''' * '''t<sub>f</sub>''') - 0
	\|}		\|}
	~~-->~~
			When the egg strikes the sheet at the end, it does not break because of the time it takes for the egg to fully stop. We normally are used to seeing impulses acting on things instantly, like if the egg were to be dropped on the floor. This is because of the hard surface not allowing any recoil to happen, and therefore the eggshell having to try and absorb all of the damage from the strike. With a hard surface, the deceleration is too fast for the egg to handle. The sheet allows give, and with that the egg can take a slightly longer time to stop. This time difference, even though it seems to be only a little bit longer, makes a big difference in how well the egg can handle the force of impact. With a longer stop time, the egg experiences less force per time interval, which allows the egg to avoid breaking!

	== Additional Information ==		== Additional Information ==

	* This demonstration pairs well with [[Angular Momentum Chair]] and [[Newton Beads]]		* This demonstration pairs well with [[Angular Momentum Chair]] and [[Newton Beads]]

imported>Stwikiadmin at 22:05, 18 May 2016

2016-05-18T22:05:38Z

← Older revision		Revision as of 22:05, 18 May 2016
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	{\| class="wikitable" style="color:black; background-color:#ddd; text-align: center; margin-right: auto"		{\| class="wikitable" style="color:black; background-color:#ddd; text-align: center; margin-right: auto"
			\| Momentum
	\| Force		\| Force
	~~\| Momentum~~
	\| Impulse		\| Impulse
	\|-		\|-
			\| '''p''' = '''m''' * '''v'''
	\| '''F''' = '''m''' * '''a'''		\| '''F''' = '''m''' * '''a'''
	~~\| '''p''' = '''m''' * '''v'''~~
	\| '''I''' = '''F''' * ∆'''t''' = ∆'''p'''		\| '''I''' = '''F''' * ∆'''t''' = ∆'''p'''
	\|}		\|}

imported>Stwikiadmin at 21:06, 12 May 2016

2016-05-12T21:06:49Z

← Older revision		Revision as of 21:06, 12 May 2016
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	\|-		\|-
	\| Format:		\| Format:
	\| ~~[[Hands-on]],~~ [[Stage]]		\| [[Stage]]
	\|}		\|}

	~~'''''~~This ~~demonstration is under construction'''''~~		This does require throwing eggs, so try to do this only in a large open space, and ideally outdoors.

	== Materials ==		== Materials ==

	* ~~List~~		* Fitted Bedsheet
	* Of		* Eggs (Hard Boiled or Raw)
	* Materials
	* Here

	== Safety Precautions ==		== Safety Precautions ==

	Please read the ~~____~~ section of the [[Demonstration Safety]] page before performing this demonstration.		Please read the Flying Particles section of the [[Demonstration Safety]] page before performing this demonstration.

	~~This demonstration requires:~~

			This demonstration requires: Safety Goggles

	== Demonstration ==		== Demonstration ==

			# Have two volunteers or co-presenters hold up the sheet. They should each hold a corner of the sheet, standing at the sides of the sheet, so that the elastic at the bottom of the sheet makes a pocket and is off the ground.
	# ~~Steps for~~ the ~~demonstration~~.		# Show the audience that you are holding an egg. Ask the audience if they think you can break the egg by throwing it at the sheet.
	# ~~Be sure~~ to ~~clarify on steps about any safety equipment needed~~.		# Take aim, and throw the egg into the sheet. The egg doesn't break! take the egg out of the sheet to show that it is still intact. You can repeatedly throw the egg into the sheet, and it won't break!
	# ~~Make sure steps~~ can ~~be understood~~ by a ~~first-time reader~~.		# You can show the audience that it is a real egg after throwing it by cracking it open over a trash can or bucket. If it is a raw egg, be sure to wash your hands afterward.


	== Why This Works ==		== Why This Works ==

	===Short Explanation===		<!-- ===Short Explanation=== -->
	This is ~~where you would provide~~ a ~~basic~~, ~~easy-to-understand explanation~~ of the ~~demonstration~~. ~~Try not~~ to ~~use too much "Science Jargon"~~, and if ~~needed add any explanation tips~~, ~~like comparing~~ the ~~demo~~ to ~~something kids are familiar with~~.		This demonstration shows how Force, Momentum and Impulse are all connected. '''''F'''orce'' is '''m'''ass times '''a'''cceleration, like when a car is speeding up. '''''M'''omentum'' is '''m'''ass times '''v'''elocity, like a car going the speed limit on a road. '''''I'''mpulse'' is when something has a change in momentum in a short period of time, like a car making a sudden stop. These three are all happening in this demo.
			When the egg is thrown, it is being accelerated forward by the throwers hand, and until it is released it is having a force applied to it. Once released, the egg travels through the air due to the momentum it has, since it is no longer accelerating forward and now travels at a certain velocity. Once it hits the sheet, it experiences the impulse, or sudden change in momentum. Usually, we see an impulse as a near-instant effect, like if the egg splattered against a wall. The sheet, however, absorbs the impact and allows the impulse to take longer. This means the momentum has more time to change, and so the egg doesn't break!
			<!--
	===Full Explanation===		===Full Explanation===
	~~This is where you will explain the demonstration in full~~, and ~~provide~~ all ~~additional information that pertains~~ to the ~~demo. Unlike the short explanation above, this should be worded so someone who is familiar with the topics might understand it. If needed, you can provide~~ equations and citations for additional sources of information on the topic. This is also where you will find some answers for trickier questions, such as "How does a plane fly upside-down?" for the Bernoulli's Principle demo. If you want to add a floating box for equations, copy the following:		Force, Momentum and Impulse are all related to each other by the following equations:

	{\| class="wikitable" style="color:black; background-color:#ddd; text-align: center; margin: auto"		{\| class="wikitable" style="color:black; background-color:#ddd; text-align: center; margin-right: auto"
	\| ~~This will give you~~		\| Force
	\| ~~a floating box.~~		\| Momentum
			\| Impulse
	\|-		\|-
	\| ~~The box will be~~		\| '''F''' = '''m''' * '''a'''
	\| ~~centered for you.~~		\| '''p''' = '''m''' * '''v'''
			\| '''I''' = '''F''' * ∆'''t''' = ∆'''p'''
	\|}		\|}
			-->
	== Additional Information ==		== Additional Information ==

	* Any extra tidbits that do not fit into other sections		* This demonstration pairs well with [[Angular Momentum Chair]] and [[Newton Beads]]
	* This demonstration ~~is a part of the (insert~~ [[~~Stage Show~~]] ~~here)~~

imported>Stwikiadmin: Created page with "{| class="wikitable" style="color:black; background-color:#ddd; margin-left: auto; float:right" | Physics Engineering: | Impulse, Force Transfers |- | Grade Range: | [[Mi..."

2016-05-09T17:46:35Z

Created page with "{| class="wikitable" style="color:black; background-color:#ddd; margin-left: auto; float:right" | Physics Engineering: | Impulse, Force Transfers |- | Grade Range: | [[Mi..."

New page

{| class="wikitable" style="color:black; background-color:#ddd; margin-left: auto; float:right"
| [[Physics]] [[Engineering]]:
| Impulse, Force Transfers
|-
| Grade Range:
| [[Middle School]], [[High School]]
|-
| Format:
| [[Hands-on]], [[Stage]]
|}

'''''This demonstration is under construction'''''

== Materials ==

* List
* Of
* Materials
* Here

== Safety Precautions ==

Please read the ____ section of the [[Demonstration Safety]] page before performing this demonstration.

This demonstration requires:

== Demonstration ==

# Steps for the demonstration.
# Be sure to clarify on steps about any safety equipment needed.
# Make sure steps can be understood by a first-time reader.

== Why This Works ==

===Short Explanation===
This is where you would provide a basic, easy-to-understand explanation of the demonstration. Try not to use too much "Science Jargon", and if needed add any explanation tips, like comparing the demo to something kids are familiar with.

===Full Explanation===
This is where you will explain the demonstration in full, and provide all additional information that pertains to the demo. Unlike the short explanation above, this should be worded so someone who is familiar with the topics might understand it. If needed, you can provide equations and citations for additional sources of information on the topic. This is also where you will find some answers for trickier questions, such as "How does a plane fly upside-down?" for the Bernoulli's Principle demo. If you want to add a floating box for equations, copy the following:

{| class="wikitable" style="color:black; background-color:#ddd; text-align: center; margin: auto"
| This will give you
| a floating box.
|-
| The box will be
| centered for you.
|}

== Additional Information ==

* Any extra tidbits that do not fit into other sections
* This demonstration is a part of the (insert [[Stage Show]] here)