1st+recyclecaratiara

Definitions of the forms of energy kinetic energy -the energy of motion potential energy - energy that is stored and held in readiness elastic potential energy -potential energy assosiated with objects that can be stretched or compressed gravitational potential energy -potential energy that depends on height mechanical energy - energy associated with the motion or position of an object thermal energy -total energy of particles in an object chemical energy -potential energy stored in chemical bonds that hold chemical compounds together electrical energy -moving electric charges produce elecricity, or electrical energy electromagnetic energy -light that you see each day traveling in waves that have electrical and magnetic properties nuclear energy -type of energy stored in the nucleus of and atom

Side note: Work is done to make an object move, and the ability to do work to make change makes energy. Work is the transfer of energy.

Here are good sources of information to learn more about energy! [] This link will give some ideas on what to include in the project. []

Ideas for Rube Goldberg Project- How to use 6 types of energy in 3 different ways each mechanical- Roll a ball down a steep ramp, a fan moves back and forth to power an object forward, and at the end of the ramp, the ball hits an object (this is moving energy). chemical- Make a circuit like the one in a flashlight to power a light, food that stores chemical energy, bring in a portable fan with batteries. thermal- A lightbulb powered by a circuit, The sunlight's energy if you need heat, put the object near a window, friction rubbing against something to create heat. electromagnetic- The waves of light from the lightbulb, a toaster, or the sun's rays. electrical- The wires from a fan or circuit, a toaster needs electricity, or lighting a match or some source of fire that is safe. acoustic- an ipod's noise, somebody's voice, a radio.

Rube Goldberg Contraption Events and Idea Outline 1. First, a ball rolls down a ramp made of toilet paper tubes that are duck taped together (mechanical energy from rolling and motion and thermal and acoustic energy for the friction and noise) 2. Next, our ball will go into a milk jug and come out a hole in the milk jug (mechanical energy for motion) 3. The ball can travel down a popsicle stick track after it comes out of the milk jug hole. There will be barriers of half toilet paper rolls to guide the ball down the popsicle stick path. (mechanical, thermal for the friction, and acoustic for the noise) 4. The ball travels hits a stick angled upward (mechanical energy for the motion of hitting something) 5. The stick hits the bottom of a platform with a heavy object placed on it and the heavy object flies in the air (mechanical energy from movement and gravitational potential energy from being lifted in the air) 6. The heavy object hits a series of balls (mechanical energy from the motion of hitting something) 7. The series of balls rolls down a ramp and hits a stamp, and the stamp hits the person's hand placed under it (rolling down the ramp is thermal from friction, mechanical, and acoustic energy for the noise and the balls hitting a stamp is mechanical energy)

Materials We Are Using For Our Project
 * Milk jugs and caps (Cara brings)
 * Toilet paper rolls cut in halves (Cara and Tiara bring)
 * Plastic cups (Cara brings)
 * Styrofoam Balls (Cara brings)
 * Empty Yogurt Containers (Cara Brings)
 * Popsicle sticks (Tiara brings)
 * Rubber Bouncy balls ranging in size (Cara and Tiara bring)
 * We need scissors as a tool (Cara and Tiara bring)
 * Duct Tape for securing objects (Cara and Tiara bring)
 * Metal bucket (Tiara brings)
 * String (Tiara brings)

Energy Track Today during the energy track exploration, we saw 100% potential energy when the ball reached the top of the track, because the ball had stored energy at the highest height of the track. The ball had 100% kinetic energy in the bottom, or lowest, part of the track because this is when the ball has the most moving energy. This track activity taught me that potential energy is stored when the marble reaches the top of the track and converts to kinetic energy when it falls down the track. Also, now that I think about it, today Ms. Bercz told us about how the friction of the ball rubbing against the track eventually causes the marble to stop at the bottom, or lowest part of the track. Also, now that I read Caroline and Sally's page, I remember from our science class discussion once again how when there is friction, thermal energy from two objects rubbing against each other, mechanical energy from an object moving, and acoustic energy from the sound friction makes when two objects rub together. These forms of energy all happen with friction. Unfortunately, our class did not get to experiment with the special marbles, so I can't tell what I learned from that part of the track activity since I didn't do it. This track activity was the only activity we did, so I can't tell what I learned from the skateboard or popper activity.

Energy Conversions Energy never disappears. Instead, it simply stays around and converts from one form to another. Energy cannot be lost because it FLOWS, it does not cycle or recycle like the rock and water cycle. Energy flows from one form to another and therefore can't be lost or recycled. Here is an example of how energy is never lost: The sun has hydrogen which turns into helium in a nuclear energy conversion. Then the nuclear reaction makes the sun's electromagnetic and thermal energy. (This is from the gizmo) Now, let's say that the sun gives light to a plant to make food in a chemical reaction, using chemical energy. Then, a person eats the plant (with their mechanical energy) and the plant's chemical energy is turned into chemical energy in the cells of the human. Let's say that the human plays basketball. Okay, a few hours later the human has a basketball game. This means the human is using kinetic and mechanical energy to dribble the ball and run. You could go on and on with this cycle, but you probably get the point of how energy doesn't just stop in the middle of nowhere, it keeps cycling from one form to another.

How to Trace Energy's Flow in a Closed System I will show conversions of energy that take place inside of our flashlight lab as an example of how energy flows in a circuit. In a circuit inside of a flashlight, there are many types of energy that the circuit has to go through to make the flashlight work. First, in our toilet paper roll flashlight, the "D" battery, Christmas light wire, brass fastener, and Gatorade lid with a hole in it were the supplies we used. Our flashlight was set up so that the D battery was in the toilet paper roll and Christmas wire stripped at the ends was connected to bothe the positive and negative sides of the battery. The Gatorade lid sat on top of one end of the toilet paper roll, and a Christmas light poked through the hole. The energy began with chemical energy stored in the D battery, or potential energy stored in the chemical bonds holding chemical compounds in the battery. Then, the Christmas light wire taped on both ends of the battery caused the battery chemical energy to transfer to electrical energy, or moving electrical charges that make electricity within the wires. This electrical energy causes the Christmas light to light up with electromagnetic energy, or light that travels in waves and has some electrical and magnetic properties. When the Christmas light gets the energy to light up and cause thermal energy, or the total energy of particles in an object that when increased makes an object hotter. Lastly, mechanical energy, or energy associated with the motion or position of an object (which can be kinetic or potential) is used in a flashlight when the brass fastener, or conductor of electricity, is pulled up to a side by a person so the wire is not connected to battery and can't transfer energy to light. When someone uses mechanical energy to to push the brass fastener down or to a side between the Christmas wire and battery to help transfer the D battery's chemical energy to electrical energy in the wire, the light switches on in the hole of the lid. The brass fastener is a light switch for the flashlight. Even if a flashlight looks simple, many transfers of energy go into making the flashlight work.

Note: This is for the most part my flashlight lab conclusion.

Video Clip of Our Project

What happens in our Rube Goldberg Project???

1.We drop a ball onto a platform connected to the hairdryer (Gravitational potential energy for the ball's height, which is potential energy, mechanical energy for the ball's movement, which is kinetic energy from movement of the ball, and acoustic energy for the sound of the ball's hit, which is kinetic energy). 2.The platform triggers the hairdryer to turn on (mechanical energy from movement of the platform and ball, which is kinetic energy, a little bit of thermal energy for the ball and platform friction, as well as the hot wind from the hairdryer which is kinetic energy, acoustic energy from hairdryer sound, which is kinetic energy, and electrical energy for the hairdryer electricity, which is kinetic energy). 3.The hairdryer blows the ball down a ramp (mechanical energy from the ball's movement which is kinetic energy, gravitational potential energy from the ball's height which is potential, or stored energy, a little bit of thermal energy from the ball and ramp friction, which is kinetic energy, acoustic energy for the sound of the ball rolling down the ramp, which is kinetic energy). 4. The ball hits the back of a cup (mechanical energy from ball's movement which is kinetic energy, a little bit of thermal energy from the ball and the back of the cup's friction, which is kinetic energy, and acoustic energy from the ball and cup's sound hit, which is kinetic energy). 5.A ball rolls out of the cup (mechanical energy from the ball's movement which is kinetic energy, a little bit of thermal energy from the ball and path and cup friction, which is kinetic energy, and a little acoustic energy for the sound of the ball rolling out of the cup and on the path which is kinetic energy). 6.The ball rolls up a lid a little bit for extra energy (mechanical energy for the ball's movement which is kinetic energy, a little thermal energy from the ball and lid friction which is kinetic energy, gravitational energy from the heich of the ball on the lid which is potential energy, maybe acoustic energy for the sound of the ball rolling, which is kinetic energy). 7. The ball hits a domino, which hits two more dominos (mechanical energy for the ball and domino movement which is kinetic energy, a little thermal energy for the friction of the cardboard, domino, path, and ball friction, which is kinetic energy, and a little acoustic energy for the sound of the domino and ball hit and the ball sound rolling on the cardboard and path which is kinetic energy). 8.The domino hits a cart with erasers, which rolls on cardboard (mechanical energy for domino and wagon movement which is kinetic energy, a little thermal energy for the wagon and cardboard friction and domino and wagon friction which is kinetic energy, and a little acoustic energy from the sound of the wagon rolling on the cardboard and the sound of the domino hitting the wagon). 9.The wagon hits a barrier and stops (mechanical energy for the wagon's movement which is kinetic energy, acooustic energy for the sound of the wagon hitting a barrier which is kinetic energy, and a little thermal energy form the friction of the barrier and wagon which is kinetic energy).