gas and heat.

Part 1

The apartments explosion, reportedly caused by a gas leak, produced a violent release of gas and heat. The heat increased the ____________ of the air in the room, which means an increase in the air’s molecular kinetic energy.

volume
temperature
distance
area

The pressure on the windows was generated by air pushing on the windows, which is the average __________ the air molecules are applying over the surface of the glass.
velocity
acceleration
force
density

If the force of the explosion was focused onto a smaller ___________ of the window, then the pressure of the explosion on the window would be even greater.

length
area
volume
density

The temperature in the room is rising because the explosion is releasing __________ energy into the air, increasing the speed of the air molecules in the room.
time
heat
temperature
density
5

When Tyler is punched the molecules of his body do not disperse because they are held together tightly in the __________ phase of matter.
liquid
solid
gas
plasma

The molecules in Tyler are composed of carbon and other atoms that share one or more electrons between 2 atoms, forming what is known as a(n) __________ bond.

compound
ionic
metallic
covalent
7

Most of the carbon atoms in Tyler have 6 neutrons, but about 1% of them have 7 neutrons. These different types of carbon atoms are known as _________ of carbon.

isotopes
ions
compounds
elements
8

The element carbon is found on the right side of the periodic table and is known as a _________, which means that it is normally a poor conductor of heat and electricity and is dull and brittle.

metal
non-metal
metalloid
noble gas
9

If the punch was instead a slap, the same force would be distributed over a larger contact area and it would lower the _________ of the blow.

temperature
heat
pressure
specific heat

The character laying on the ground has just been burnt by a chemical known as potassium hydroxide, made from a potassium atom, a oxygen atom, and a hydrogen atom. This means that potassium hydroxide like most substances is a _________.
compound
element
proton
electron

Like sodium and chloride in table salt, the potassium atom is bonded to the oxygen atom in potassium hydroxide by a transfer of an electron from the potassium atom to the oxygen to create a(n) _________ bond.

ionic
covalent
metallic
compound

The number of _________ in the atom is what determines whether the atom is a potassium atom, a hydrogen atom, or an oxygen atom.

proton
neutron
electron
quark

The vinegar, used to neutralize the chemical burns, was poured from a bottle onto the burn. It was able to be poured because it is a __________, a phase of matter that allows molecules to move past each other while still keeping the molecules close together.
solid
liquid
gas
plasma

Since buildings are denser than the surrounding air, meaning they have more ________ per volume than the air, they fall to the ground instead of floating up into the atmosphere
mass
heat
pressure
temperature
15

As the buildings collapse, the volume of air inside the building decrease, while the mass of the air stays the same. The volume of the building is decreasing therefore causing the ___________ of the air inside to increase.
specific heat
atoms
density
molecules

The air inside the building is easily pressed out the windows because the air is widely spaced molecules in the ________ phase.

solid

liquid

gas

plasma

The heat generated from the explosion is absorbed by the building and increases the temperature of the building. The property that relates how much heat energy is needed to increase the temperature is known as the ____________ of the building.

pressure

specific heat

density

phase

If the building absorbed so much heat that it turned into a liquid, then it would have undergone a phase change known as _________.

freezing

vaporizing

condensing

melting
19
Knowledge Check: Part B
Find a picture from a media source (movies, TV, comics, video games, etc.) that contains an object floating in a body of water (tub, pool, lake, ocean, etc.). Place the picture in the following diagram template and cite the image using APA format:
Keynote: Week2DiagramTemplate.key
PowerPoint: Week2DiagramTemplate.pptx
If you need help learning how to manipulate the template in Keynote checkout this Lynda.com video series. For a different version of Keynote, power point or other software, just search in lynda.com for other great courses.
If you are unable to open either of the diagram templates for any reason, please use the image below as a guideline in creating your own diagram in another presentation-based software program.

Answer the following questions based on the picture chosen and what you have learned this week.

What is the definition of the buoyant force

What is the buoyant force always equal to

The weight of the object.

The weight of the displaced fluid.

The depth of the object.

The depth of the body of water.

21
If the object was hit by a shrink ray, making it much smaller but keeping the same mass, how would the buoyant force change

It would increase.

It would decrease.

It would stay the same.

Not enough information.
22
Open your diagram template and do the following:
Add a blue arrow next to the floating object in your diagram to represent the buoyant force on that object. Be sure that it is pointing in the correct direction.

Done!

Do not choose this option.
23
If any object were forced to move deeper under the surface of the water, what would happen to the pressure

It would increase.

It would decrease.

It would stay the same.

No way to tell.

24
What is the difference between mass and density Don’t just write out equations or copy definitions, use your own words to explain the ideas. (e.g. Don’t just say mass per unit volume)

25
Open your diagram template and do the following:
1. Move and resize the red circle so that it is around an object in your diagram that has a higher density than water and label it in the key. (If one is not visible in the image, name something in the key that might be nearby that would have a higher density.)
2. Move and resize the green circle so that it is around an object in your diagram that has a lower density than water and label it in the key.
3. Your floating object is applying a pressure on the water, just like the water applies a pressure on the object. Place a purple arrow near your floating object that represents the force of the bottom of that object on the water. Be sure to make sure it points in the correct direction and has the correct size in relation to the buoyant force (blue arrow).
4. By moving and resizing the red rectangle, highlight the area over which the force of the object is applied to the water.
5. Save your diagram as a PDF and upload the completed file below.

26
What is the definition of specific heat

27
Find two different substances (or materials) in your diagram (for example: water and wood or plastic and aluminum, etc.)
Name the 2 materials below. Notice that you must select two different materials not two different objects.
Label one of the two materials as having a higher specific heat, and the other as a lower specific heat. You will not be counted off if you incorrectly label the specific heats.
Based only on the definition of specific heat from question 26 and the specific heats you just labeled, if the same amount of heat is added to both materials, which would rise to the higher temperature or would they be the same

Please follow and like us:

                                                                                                                    Order Now

Place Order

Order assignment papers from us today at discounted prices!!