Elastic vs. Inelastic

Elastic collision - objects bounce off each other after colliding
Ex: kicking a soccer ball is an elastic collision because the ball just bounces off
Inelastic collision - objects stick together after colliding
Ex: When two cars hit each other in a crash they stick together

Phase change

A phase change i saw was when i make coffee and i boil the water and it starts to create bubbles and if i leave the water boiling to much all the water will be gone.The reason the water bubble is because it is evaporating and evaporation is when a liquid changes to a solid.If i let the water boil to long all the water will change into a gas. This is a phase change i saw out of class.

Too Hot/Too Cold

Metal is conductor and heat transfers faster through it so that's why metal heats up fast.

Rubber is an insulator and it is harder for heat to travel through an insulator that why it heats up slow.

Plastic is also and insulator and that why it doesn't heat up fast, it take more time for the heat to transfer. 

Doppler Radar

 Doppler Effect is the increase or decrease in the frequency of light, sound or other waves as the source and observer move toward or away from each other. A Doppler Radar detects the wind dirrection, wind speed and precipitation's force. An example is the Doppler weather forecast is used to research about weather so that people can make predictions on precipitation, to calculate its motion and to estimate its type of rain hail snow. People mostly use pulse doppler-radar so that they can determine the motion of rain dopplers

Interference

The difference between constructive and destructive interference is constructive increases amplitude and the destructive interference decrease amplitude.constructive interference is when the crest of a wave is super-positioned with the crest of another wave to increase the amplitude. An example is when you plug in something into speakers to make it sound loader. Destructive interference is when the crest of a wave is super-positioned with the crest of another wave to decrease the amplitude. Headphone is an example of a destructive wave because it cancels out noise. 

Standing Waves

The lab we did today was we created waves. We counted how many waves we needed then we counted how many times the waves hit. Miss Reid was swinging the slinky up and down for 10 seconds. We had a specific wavelength which was measured in meters and the frequency . I learned that a transverse wave is a type of wave where the particles are perpendicular meaning they go across

No Effect

People say that violent TV make kids more violent through out their life. they think that violent TV affects the behavior of children. But studies have shown that violent TV actually doesn't affect children behavior at all. this is something that people think showed have an affect but it doesn't.

Simple Harmonic Motion

You can tell when something is a simple harmonic motion because it will usually move up and down motion or a side to side motion.

Examples of a simple harmonic motion are:

1. A swing from a park because the swing moves back and forth,

2. A old clock with pendulum because the pendulum moves side to side.

3. A ball because it bounces up and down

No Wires World

If there was a world were electricity didn't need to go through wires I would name it electronic city . Since electricity would be flowing in the air there would be no need to be worrying about charges electronics or plugging them in because they would get the electricity through the air. This could be a good thing beaucse we would no longer have to use wires and it would be much less of a mess. A bad thing that could happen would be that if someone has something that is a conductor the electricity could get to that person and this would be dangerous. If anyone was holding some sort of conductor they would get electrocuted.

Electricity So Far

• Electricity is a form of energy that comes from charged particles like protons and electrons
• So far I learned is that there are many forms of electricity
• I'm still confused about what can be considered a conductor or insulator
• I'm getting better at understanding what electricity is. 

Electric Vocabulary

What I have learned about electricity so far is that there are three types of charges , Positive, negative, and neutral charges . A positive charges are called a protons, negative charges are called elctrons and neutral charges are called neutrons. I also learned about conductors and insulators. A conductor allows electrons or electricity to flow freely and an insulator doesn't allow electrons or electricity to flow freely. A final thing I learned is that opposite charges attract and the same charges repel.

Van De Graff

In class we played with a Van De Graff generator, what the generator did was cause electricity. We tested it put with a ball which would keep moving away form the generator. This happened beacuse the ball and generator had the same charges. Then we turned the generator off and put aluminum plates on top once we plugged the generator back in the plates went flying off one by one. This happens because the aluminum plates had the same charges. Obejets repel when they have the same charges like positive and postive or negative and negative the attract when they have opposite charges like negative and positive.

Insulators And Conductors

An Insulator that I come in contact with is my bed . my bed is an insulator beacuse it does not allow electricity to flow through it . Wires is an example of Conductors because inside that wire it has copper and inside the copper the electrons move/flow freely. The wires are Conductors because it allows electricity to flow through them. Insulators don't let electricity flow freely in other word the electrons can't flow through insulators. Conductors allow electrons to move freely or allows electricity to flow.