Homework Connor Smith

Objective  1
1. Mass is the same no matter where you measure it but the weight depends on the force acting on it, say gravitational pull, so if you weigh yourself on the moon it would be different than on Earth unlike with mass.
2. The volume is 619.65 cm^3 (cm cubed)
3. The unit is grams over centimeters cubed   g/cm^3
4. The formula for finding density is mass over volume   m/v
5. The formula for finding volume is length times width times height

Objective 2
1. Physical changes are changes in the appereance, like water freezing, but chemical changes are actual changes in the molecules or substance inside of an object, wood burning.
2. Chemical changes occur in creating solids, gses, changes of color, and some types of light.
3. Substances in closed spaces remain constant. Antoine Lavoisier
4. Thermal energy is the number of total atoms in a substance or object but temperature is the average measure of the atoms in that substance.
5. Photosynthesis is a type of endothermic reaction and an explosion is an example of an exothermic reaction.

Objective 3
1. Kinetic, potential, thermal, electrical, electromagnetic, and chemical energy.
2. Kinetic energy
3. Potential energy
4. Electromagnetic energy take the form waves in matter existing electromagenteic energy can also be called electromagnetic radiation.
5. Electrical energy is the energy of electrons moving from one place to the other.

Objective 5
1. Boyles law is between pressure and volume and shows that they are a constant, pressure goes up, temperature goes up and vice versa.
2. The higher you go more air goes into the balloon so if they had filled the balloon al the way it would have burst.
3. Pressure times volume equals a constant.
4. This law applies to breathing and lungs, the more pressure on the lungs the higher volume of the lungs.
5. Boyles law is important in knowing about bouyancy and it is aslo very important to divers because it could potentially cause internal damage on air filled parts of the body.

Objective 6
1. Volume occupied by fixed amount of gas varies with temperature.
2. The molecules move more rapidly.
3. Jean Pilâtre de Rozier
4. His ballon worked perfectly and was able to lift off again in his helium filled balloon but it deflated.
5. pressure

Citations
http://www.oreivystescentras.lt/eng/hot_air_balloons/the_history_of_ballooning/
http://chemistry.about.com/cs/generalchemistry/a/aa051903a.htm
http://www.griffinscience.com/
http://books.google.com/books?id=SQXcpvjcJBUC&lpg=PA165&dq=jacques%20charles%20gas&pg=PA165#v=onepage&q&f=false