Rube Goldberg
Project
Objective
The objective of a Rube Goldberg is to have a bunch of small complicated simple machines to complete a simple task.
Goals
The goals of our project were to dispense pencil.
Dilemmas
Our group encountered several problems while designing, creating, and building this project. One of the major setbacks that we had was figuring out how to pop a water balloon effectively while minimizing the splash as much as possible. Another major problem was that our project was too fast. Eventually we found a solution for both problems by creating a funnel that kept the splash and speed down.
Another problem that our group had was finding out how to place the weight on the stand. the weight was falling off the stand at even the slightest bump and setting off the steps in the wrong order. Eventually after many different attempts to solve this problem, we created a brace to hold the stand stable. It works great.
Solution
The solution for dispensing the pencil was to have a marble go down a spiral and hit a weight which would, in turn, hit a lever to pop a water balloon. The water balloon would empty through a funnel and into a cup that would tilt a lever up.When the lever tilts up it raises another lever to roll a ball down it and go into a cup that would lift a nail that stopped a ball from rolling down a hill, then the ball would roll and hit a paddle. Then the paddle would hit the pencil down an inclined plane and into your hands.
Simple machines used
Simple machines include inclined planes, pulleys, wedges, screws, lever, and wheel and axle we used
wheel and axle
screws
inclined planes
levers
wedges
pulleys
Step by Step Analysis
Step 1: Our first step in the Rube Goldberg is to use a wheel and axle to push a marble. The wheel and axle works by pulling a weight tied to an axle down. This causes a peg attached to the axle to spin and push the marble.
Step 2: The marble goes down a screw.
Step 3: The marble then rolls down an inclined plane and hits a weight.
Step 4: The weight falls onto a lever and causes the lever to move up.
Step 5: There is a pin on the other end of the lever that pops a water balloon. The pin popping the balloon is a wedge.
Step 6: The water balloon pops and the water released from the balloon falls onto another lever, causing the lever to activate.
Step 7: The lever that the water is now on hits a class 2 lever and causes a golf ball to roll down the lever.
Step 8: The golf ball falls into a cup and makes a pulley move down.
Step 9: The pulley pulls a wedge that is holding back a marble and allows the marble to roll down an incline plane.
Step 10: The marble runs into a pencil and the pencil goes down another incline plane.
Step 11: The pencil rolls into a hand waiting. We have dispensed a pencil!
Physics of our Rube Goldberg
Step 1: The Mechanical Advantage of the wheel and axle is 1/19.Mechanical advantage is a measure of the force increased achieved by using a tool,
Step 2: Potential Energy of the marble as it goes down the screw is 0.0211 J.
potential energy is the energy of an object or a system from the position of the body or the arrangement of the particles in the system.
Step 3: The velocity of the ball rolling down the inclined plane is 0.191 m/s.
Velocity is a vector measurement of the rate and direction of motion.
Step 4: The weight is pushed off of the edge by a marble with a force of 0.49 N. The weight then falls with a force of 4.9 N.force is any influence that causes an object to undergo a certain change,
Step 5: The mechanical advantage of the wedge (pin) that pops the water balloon is 400.
Step 6: The water falls out of the balloon and into another cup.The water falls with a force of 1.274 N.
Step 7: The acceleration of the golf ball is 0.407
m/s^2.
Acceleration is ; increase of speed or velocity.
Step 8: Mechanical advantage of the pulley is 1.
Mechanical advantage is a measure of the force increased achieved by using a tool,
Step 9: The Potential Energy of the marble is 0.00882 J.
potential energy is the energy of an object or a system from the position of the body or the arrangement of the particles in the system.
Step 10: Momentum of the marble is 0.015 kg m/s.
force or speed of movement of a physical object.
Step 11: The Potential Energy of the pencil is 0.006174 J.
potential energy is the energy of an object or a system from the position of the body or the arrangement of the particles in the system.
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Project
Objective
The objective of a Rube Goldberg is to have a bunch of small complicated simple machines to complete a simple task.
Goals
The goals of our project were to dispense pencil.
Dilemmas
Our group encountered several problems while designing, creating, and building this project. One of the major setbacks that we had was figuring out how to pop a water balloon effectively while minimizing the splash as much as possible. Another major problem was that our project was too fast. Eventually we found a solution for both problems by creating a funnel that kept the splash and speed down.
Another problem that our group had was finding out how to place the weight on the stand. the weight was falling off the stand at even the slightest bump and setting off the steps in the wrong order. Eventually after many different attempts to solve this problem, we created a brace to hold the stand stable. It works great.
Solution
The solution for dispensing the pencil was to have a marble go down a spiral and hit a weight which would, in turn, hit a lever to pop a water balloon. The water balloon would empty through a funnel and into a cup that would tilt a lever up.When the lever tilts up it raises another lever to roll a ball down it and go into a cup that would lift a nail that stopped a ball from rolling down a hill, then the ball would roll and hit a paddle. Then the paddle would hit the pencil down an inclined plane and into your hands.
Simple machines used
Simple machines include inclined planes, pulleys, wedges, screws, lever, and wheel and axle we used
wheel and axle
screws
inclined planes
levers
wedges
pulleys
Step by Step Analysis
Step 1: Our first step in the Rube Goldberg is to use a wheel and axle to push a marble. The wheel and axle works by pulling a weight tied to an axle down. This causes a peg attached to the axle to spin and push the marble.
Step 2: The marble goes down a screw.
Step 3: The marble then rolls down an inclined plane and hits a weight.
Step 4: The weight falls onto a lever and causes the lever to move up.
Step 5: There is a pin on the other end of the lever that pops a water balloon. The pin popping the balloon is a wedge.
Step 6: The water balloon pops and the water released from the balloon falls onto another lever, causing the lever to activate.
Step 7: The lever that the water is now on hits a class 2 lever and causes a golf ball to roll down the lever.
Step 8: The golf ball falls into a cup and makes a pulley move down.
Step 9: The pulley pulls a wedge that is holding back a marble and allows the marble to roll down an incline plane.
Step 10: The marble runs into a pencil and the pencil goes down another incline plane.
Step 11: The pencil rolls into a hand waiting. We have dispensed a pencil!
Physics of our Rube Goldberg
Step 1: The Mechanical Advantage of the wheel and axle is 1/19.Mechanical advantage is a measure of the force increased achieved by using a tool,
Step 2: Potential Energy of the marble as it goes down the screw is 0.0211 J.
potential energy is the energy of an object or a system from the position of the body or the arrangement of the particles in the system.
Step 3: The velocity of the ball rolling down the inclined plane is 0.191 m/s.
Velocity is a vector measurement of the rate and direction of motion.
Step 4: The weight is pushed off of the edge by a marble with a force of 0.49 N. The weight then falls with a force of 4.9 N.force is any influence that causes an object to undergo a certain change,
Step 5: The mechanical advantage of the wedge (pin) that pops the water balloon is 400.
Step 6: The water falls out of the balloon and into another cup.The water falls with a force of 1.274 N.
Step 7: The acceleration of the golf ball is 0.407
m/s^2.
Acceleration is ; increase of speed or velocity.
Step 8: Mechanical advantage of the pulley is 1.
Mechanical advantage is a measure of the force increased achieved by using a tool,
Step 9: The Potential Energy of the marble is 0.00882 J.
potential energy is the energy of an object or a system from the position of the body or the arrangement of the particles in the system.
Step 10: Momentum of the marble is 0.015 kg m/s.
force or speed of movement of a physical object.
Step 11: The Potential Energy of the pencil is 0.006174 J.
potential energy is the energy of an object or a system from the position of the body or the arrangement of the particles in the system.
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