Elastic vs. Inelastic

   Elastic collisions have to do with two things crashing and bounce off each other while inelastic is when the two objects stick together after the crash. An example of an elastic collision is when someone kicks a ball and sends it flying. The moment from the foot is transferred when it hits the ball. An inelastic collision could be someone running into a chair and stays on it. Inelastic means the two things stick so when the man stays on the chair he sticks.

Phase Change

Today I put a hot bath up. When it was finished there was steam coming out of it. It was turning from a liquid into a gas in front of me. What was happening was the water was getting hot enough to turn in to a gas using... well gas. It is caused by convection from the heat of the gas

Interferance

 Interference is probably everywhere. There is constructive and destructive interference in physics. When  two waves meet it can either increase or decrease a wave (it should be easy to tell which one is which).  We have this in real life as well. When hydrogen and oxygen are mixed together they make water which makes them turn into something completely different. This could kind of be destructive interference. In real life when you make a pizza you mix good ingredients together to make something great. Together they make something that adds all of them to make something even better than when they were alone. This could be constructive interference.

No Effect

Something many people seem to think is that video games make people want to kill. There have been studies that they actually don't. Since killing in the game is fun people think that it applies to the real world. This is of course not the truth.

Pretzel Circuit

What we did was move around the desk to look like a circuit. 1 person was a generator giving us 2 pretzels (our energy) while we left them in the resistors. Depending on the circuit we did different things with this energy.

Insulators and Conductors

Today I got shocked a bit when I touched a doorknob. The reason I got shocked was because that doorknob was a conductor. That means that the doorknob took the electricity from my body and brought it to itself. An insulator that I touched earlier was my eraser. It felt very different from the doorknob. The doorknob was cold and smooth while the eraser just felt normal and a bit strange. You could tell that they were both different with electricity.

Electric Vocabulary

Electricity is used everywhere. Electricity can have a positive and negative charge. The way to get these charges are to move electrons elsewhere. In electricity there are neutrons, protons, and electrons. Electrons are negative while protons are positive. When two objects that have opposite charges come together they attract by themselves. Two objects that have the same charge repel from each other.