hw 9

1.1) farenheit, celcius, and kelvins
1.2) the higher the temp. the more thermal energy
1.3) it means the section's heat is very warm
1.4) because your body heat is warmer then the ice
1.5) because of the denstity and material/ material's ability to hold heat
2.1) mercury gets warm and moves up the thermometer
2.2) they are farenheit, celcius, and kelvins, they are different because they have different numbers for different temps.
2.3) 42 degrees F
2.4) 224 degrees
2.5) 83600
3.1) conducion, convection, radiation
3.2) up
3.3) conductors conduct heat, insilators hold heat
3.4) conductor because heat travels through it
3.5) you would set up a tent because heat would travel up and away.
4.1) thermal energy
4.2) it becomes more flexible
4.3)because the temperature does not change the state fully
4.4) when heat becomes so high it loses substance
4.5) because otherwise the heat will be trapped and cause mr potatoe head to go boom boom!!!
5.1) they use heat to expand and circulate
5.2)  internal uses gasses while external uses fluids, both break down energy
5.3)  because it is more efficient to use gasoline and it holds more energy
5.4) matter slows down and hardens
5.5) heat would not be allowed out and would stay in as long as the door was shut along with the cold air

i do not know what to do with my test... i am posting it and emailing (verb?) it...

 ATOMIC TEST 1                                                                               Name_____________

1)         When was the first atom discovered?

a) 1661            b) 604 BCE     c) 1741            d) It hasn’t been found yet

2)         Who was the first documented person to know that there were atoms?

a) Dalton          b) Isaac Newton           c) Democritus               d) Hercules

3)         When do atoms naturally die?

a) When we kill them                b) Every second           c) Exactly 100 years     d) Never

4)         What is made up of atoms?

a) Only brain matter      b)nothing          c) Everything (larger than atoms)           d) Only food

5) What do atoms do all day?

a) Nothing        b) They are in constant motion  c) they gather food        d) die

TURE or FALSE

6) ______ Atoms need food to!!!

7) ______ Atoms can kill

8) ______ everything in Earth and only Earth is made of atoms

9) ______ Rutherford is the creator of the most modern atomic model

10) ______ Democritus made the very first Atomic model ever

11) ______ When atoms die they explode

12) ______ JJ Thomson discovered the electron through cathode rays

13) ______ JJ Thomson also discovered neutrons through EMI rays that magnify neutrons

14) ______ Rutherford killed JJ Thomson to steal his work

15) ______ Rutherford discovered electrons through his famous gold foil experiment

            Explain how with each Atomic model from JJ Thomson to our modern atomic model, the technology has advanced parallel to our understanding of what Atoms are made of, and what they look like.  Please write a 4 paragraph essay in the space given or on a separate sheet of paper. (5 points)

matter hw

1.1) Because weight changes in different elevations
1.2) 688.5 cm sq.
1.3) g/v cubed
1.4) mass / volume
1.5) L x W x H
2.1) physical is a visible change, chemical is a change in chemicals
2.2) dispalcement, synthesis, decomposition, and combustion
2.3) mass of a closed space will remain constant- empedocles
2.4)  thermal energy is energy from heat whereas heat is the movement of particles
2.5) exothermic is giving off heat, endothermic is taking in heat
3.1) thermal, kinetic, electric
3.2) kinetic
3.3) potential
3.4)  a wave of energy in matter
3.5) thermal energy is matter moving and generating heat
4.1) in warm temperatures, particles speed, in cooler they slow
4.2) because the particles speed up and hold it more losely
4.3) the vibrations hold matter together
4.4) when the particles move fast and escape
4.5) when solid turns into a gas before liquid
5.1) between pressure and volume
5.2) because the gas expands
5.3) pV=K
5.4) so they know necesarry pressures
5.5) so they know how much air is in their oxygen tanks