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Gpe in dominos> Ke+Se of dominos> Ke+Se of bells> Ke+Se of dominos> Ke of small box (hidden by book)> Ke of book> Ke of switch> Ee from batteries> Le of lightbulb.
The dominos fall down, hit the bells and produce sound energy. The bells then knock down the rest of the dominos. The dominos knock down a small box and the small box knocks down the book which falls on the switch, closing the circuit and causing the light to turn on.

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Kinetic energy to gravitational potential energy to kinetic energy to kinetic energy

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GPE(dominos)---->KE(dominos)
The dominos that are raised will fall down and hit the rest of the dominos.
This was my third try.
Forces: Gravity, Friction
Materials country erasers and paper.

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My original goal was to let the two buildings collapse on each other, hitting the metal thing on the SOS circuit and creating a sound. Kinetic energy of the ball was converted to the kinetic energy of the country erasers, before hitting the lever as kinetic energy is converted to sound energy.

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Ansel Rube Goldberg machine 2.0 PS it failed but im still uploading it anyway

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Ansel Rube Goldberg machine 2.0 PS it failed but im still uploading it anyway

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PLAN: electrical energy(motor) -->kinetic energy (domino)--> kinetic energy (lever) --> gravitational potential energy (domino) --> kinetic energy (domino) --> gravitational potential energy ( ball) --> kinetic energy (dominoes) --> gravitational potential energy -->  kinetic energy (lever) --> gravitational potential energy (domino) --> kinetic energy( domino) --> gravitational potential energy --> kinetic energy ( domino) -->kinetic energy (bell) --> sound (bell)
what actually happened
kinetic energy (hand)--> kinetic energy ( base of the stand) --> kinetic energy ( box) --> gravitational potential energy (domino) --> kinetic energy (domino) --> kinetic energy ( bell) --> sound energy (bell)

forces: Gravity and friction

Materials : some sort of chain reaction kit
EV3 set ( expensive!!)

It may be weird to post up a failed vid but it still rang the bell :)

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GPE (Ball)-->KE+HE+SE (ball) -->KE+HE+SE (dominoes)-->GPE (dominoes)--> KE+HE+SE (domino)--> KE (lever) -->GPE (domino)--> KE+HE+SE (domino) --> KE (lever) -->GPE (domino)--> KE+HE+SE (domino) --> KE+HE+SE (bell)

Forces : friction, gravity

Materials : some sort of chain reaction kit

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The car was released, and (with its KE) knocked down the books which proceeded to knock down each other ( transfer of KE then GPE as they fall). They then knocked into the ball (,transferring KE) and hit the lego figurines which knocked each other over (transfer of KE and GPE). As the least piece fell, it hit the cube. The cube's last turn was turned and it was solved.

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electrical energy in the motor (PS that's a lego EV3 motor) is converted to kinetic energy. Gravitational potential energy is converted to kinetic energy, heat energy and sound energy, which is transferred to dominoes and the bell, which is converted into sound energy.

Forces : Gravitational, frictional

Materials : some sort of chain reaction kit
EV3 set ( expensive!!)
Marble run

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I did it on my first try!

Forces:
For KE ➡ Frictional Force
Throughout ➡  Gravitational Force
At the start for the 'slingshot' ➡ Elastic Force

Note: I wanted to add GPE on the top of the ramp but I felt it was mostly the EPE converting to KE.

Credits: (didn't want to put it in the video because i wanted to keep it <1min)

Edited with VSDC (Free edition)

Song from Soundcloud (Lakey Inspired - Chill Days)

Sound effects from this channel

Thanks to my mother for helping pull back the net and set-up

VSDC Recorder for recording and Google Slides for text

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Żãċĥąřý Ţäŋ 6Ĥ34

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Żãċĥąřý Ţäŋ 6Ĥ34

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Aim:
To destroy the tower

GPE(falling marble)→KE(moving marble)→GPE(falling marble)→KE(falling marble)→KE(circular box)→GPE(falling circular box)→KE(dark blue brick)→KE(big marble)→KE(big dark ball)→GPE(falling big dark ball)→KE(big dark ball bouncing up)→GPE(falling big dark ball)→KE(green brick at bottom of tower)→GPE(tower)→SE(crash)→SE(cheering)

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Forces:
Gravitational Force (Throughout)
KE > Frictional Force

Note:
I accidentally wrote "Rude Goldberg" instead of "Rube Goldberg".

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something different...

KE of the ball is transferred from the ball to the UNO blocks to the country erasers to the Stormtrooper minifigurine, causing it to fall

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The goal was to make the second marble roll into the hole using common household items.

At first, I used my hand to lightly tap the first domino on the building blocks. The KE from my hand was transferred to the KE of the dominoes, making them fall in a (well, domino-like) specific manner. Then, it pushed the marble forward, transferring its KE to the marble's KE. The marble rolls of the edge and its GPE is converted into KE, which is then transferred into the KE of the dominoes on the ground as the marble comes into contact with it. Then, the above process is repeated and the ball rolls into the hole.

Songs (No copy right strike me pls)

Daft Punk, Pharrell Williams, Nile Rodgers- Get Lucky
Gourmet Race (64-bit) from YouTube -> https://www.youtube.com/watch?v=qMDcw2ZhnKM
The Green Orbs - Splashing Around (No copyright music)
Silent Partner - Spring in my Step (YouTube no copyright music)

Thanks to my mom for giving me time and Ms Chua for hosting

k txs bye yeet

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Goal: To knock the red, yellow and orange card over
Forces: Gravitational Force pulls the Green car down, also causing the dominoes to fall down. Normal force caused some of the blocks to bounce up.
Energy Conversion: GPE(car) to KE and HE(car) to KE and HE(dominoes) to KE and HE(towers)

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Goal: 1. Get the red truck to move at least 1 cm
2. Get the last domino on the bottom path to fall into the box

FORCES
Weight, friction between wheels and ground.

ENERGY
Within video.

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Upload your own video of your RG contraption.

Due 21 March

https://padlet.com/AC_2022/E2Rube6FH

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Goal: To drop a ball inside a cup.
Forces: For Kinetic Energy → Frictional Force
Throughout → Gravitational Force
At the start → Push Force
Energy conversion: CPE(Me)→KE(My hand)→KE(Dominoes)→KE+GPE(Toy Train)→KE(Ball)→(GPE)Ball→KE(Ball)→GPE(Ball Holder)→KE(String)→KE(Box Lid)→GPE(Ball)→KE(Ball)

(For those who are asking, no, that is not my bedroom or meant to be a bedroom. )

(The black frame was caused by some issues)(Definitely not a cut because it failed)

Credits: Father - Recording
Mother - Gathering Materials

Edited video using Openshot Video Editor and Audacity
Music used: Lukrembo - Rose

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𝗟𝘂𝗰𝗮𝘀 𝗖𝗵𝗮𝗺 𝟲𝗛𝟬𝟲

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𝗟𝘂𝗰𝗮𝘀 𝗖𝗵𝗮𝗺 𝟲𝗛𝟬𝟲

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I wonder what's behind this wall of bricks?
Goal: Find out what lies behind this wall of bricks.

Forces:

Gravitational force pulls the marble down the marble run

Force exerted by the ball when it hits the dominoes causes the dominoes to knock each other down

Gravitational force pulls the dominoes on the 'stairs' down when they are knocked off due to the force exerted by the previous dominoes

Gravitational force and the force exerted by the dominoes when they fall onto the big plank causes it to fall down as well

Force exerted by the plank causes the button on the toy to be pressed

*Elastic spring force from the spring inside the toy causes the block on the toy to be 'launched' and 'fly' towards the wall of blocks

Force exerted by the 'flying' block causes part of the wall to crumble, revealing ██████████████ !

Of course, frictional force is acting on everything all the time as well.

**Energy:

GPE of the marble → KE of the marble

KE of the marble → KE of the dominoes

KE of the dominoes → GPE + KE of the dominoes (on the 'stairs')

GPE + KE of the dominoes (on the 'stairs') → GPE + KE of the big plank

GPE + KE of the big plank → KE of button on the toy

KE of button on the toy → *EPE of the spring in the toy

*EPE of the spring in the toy → KE of the block on the toy

KE of the block on the toy → GPE + KE of the block 'flying' towards the wall

GPE + KE of the block hitting the wall → GPE + KE of the wall crumbling, revealing ██████████████ !

Of course, frictional force is acting on everything all the time as well, causing some of the energy to be converted to HE and SE.

* In the launcher toy, there is actually a spring underneath that is stretched and held in place by a 'latch'. When the button is pressed, the latch is released and the spring underneath will be released, allowing it to' stretch/pull' back to normal. Since the spring is also connected to a piece on top, the piece on top will also be pulled quickly, causing the block in front of it to be pushed away at a great speed. (The toy is reloaded by pulling the piece on top backwards, where it will be latched again.) Basically, its hard to explain unless you have the toy itself.

**I am using short forms for the type of energies.

GPE = Gravitational Potential Energy
KE = Kinetic Energy
EPE = Elastic Potential Energy
HE = Heat Energy
SE = Sound Energy

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This took me very long because the first car could not knock down the country eraser in front of it. Forces acting on it: Frictional force, gravitational force. Energy conversion: gravitational potential energy of the ball was converted to kinetic energy, which was transferred to the dominoes. The dominoes then transferred the energy to the first car which transferred the kinetic energy to the other dominoes which transferred the energy to the second car. The second car then transferred the kinetic energy to the dominoes, causing them to fall onto the car, completing the science project.

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The goal was to make the ball fall on the xylophone and make it ring. (or something)
Edited using Movavi
Failure from Steven He
Sound effects from The youtube channel--Sound effects

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Forces:
The gravitational force pulls the car down and pushes down the dominoes which knocks down each other. Then, the dominoes push down on the lever and the lever opens the switch. Then the circuit is open, turning off the light bulb.
Energy:
Gravitational potential energy (car), kinetic energy (car), kinetic energy (dominoes), kinetic energy (lever), kinetic energy (switch).
Edited with clideo.com

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Asher Khooo's Rube Goldberg machine - To catch a bug - The Extectiminator!

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Because I cannot post on the AE server