Bloggin' On The 27th!

HEYYYYYY everyone :) It'sa me!!!! soooooooo.... I'm scribin' eh?...... Well let's get this blog on the road I guess.... :D.......Uhh......No.....I can't think when I'm tired so I'm going to bed and sleep and do it in the morning when I'm rested!! :) C'yall in the mornin'!!!!!!!

Good Mornin' and welcome to the 28th of October!!!! Now to business... :)

Now if my memory serves me right then I believe we went over the 2 review sheets. Now starting with the sheet Study Guide here are the answers:

1. 48.2 - 9.2

2. 0-50

3. 131.92 - 24.93

4. 0-140

5. The equation of a linear relationship is y=mx+b

6. The shape of the graph of a linear relationship is a straight line.

7. The equation of an inverse relationship is y= a/x

8. The shape of the graph of an inverse relationship is a hyperbola.

9. The equation of a quadratic relation is y=ax^2+bx+c

10. The shape of the graph of a quadratic relationship is a parabola.

Yipee!!!! Now for sheet 2!!!

Exercise 1

a) It would be an inference because you are coming to a conclusion using the observations you have made.

b) This would be scientific law because theory is an attempt to explain how nature works but law is just a generalization.

c) Yes because we are creating a visual image of what we think is inside the box.

d) We would need more information or different observations.

Exercise 2

a) It's a law because it's not trying to explain why nature is working the way it is.

b) Charles' law is a law of science and math and whatnot, whereas stopping your bike is a law of society where you could get into trouble if you fail to do what the law says of you.

c) Quantitative because he was making a mathematical equation so he would need the numbers to do so.

d) This would be a theory or model because it is trying to explain and show how nature works.

e) The experiment would need to be done many more times on different gasses in different quantities and in different temperatures.

Exercise 3

a)

x | y

___|____

1m | 2.0s

2m | 4.0s

3m | 6.0s

4m | 8.0s

5m | 10.0s

b)

12-|

10-| .

8-| .

6-| .

4-| .

2-| .

0-|________________________

| | | | | |

0 1 2 3 4 5

c) slope = rise/run = 2-0/1-0 = 2

the equation would be T=(2m/s)m

Exercise 4

Qualitative observations including, in the wise words of Alex, quality, comfort and price. :)

Exercise 5

a)

x| 2cm3 | 4cm3 | 6cm3 | 8cm3 | 10cm3

_|____ |_____|____ |_____|______

y| 10g | 20g | 30g | 40g | 50g

b)

50-| .

40-| .

30-| .

20-| .

10-| .

0-|__________________

| | | | | |

0 2 4 6 8 10

c) slope = 10/2= 5

equation g=(5 g/cm3)v

Well, that about wraps it up. We were also given the questions to do from the text book but I do not remember which questions they are..... O well...... Good luck to everyone on the test today!!!!! Scribe will be...............................................KATIE

October 24, Nature of Light

Hey everyone!
I was supposed to do the blog yesterday but I wasn't there, so i'm doing it today instead. :)
Today in class we corrected 3 sheets.

Reteaching Determining Relationships from Graphs

Rainfall versus time: Position versus time:

Slope= 2.7 cm/day Slope=0.13 m/s

equation: R= (2.7 cm/d) t equation: P= (0.13m/s) t + 5.0m

Wave Height versus Distance: Wages versus Workdays:

Slope= -1.1 m/km Slope= $26.00/d

equation: h= (1.1-m/km)d +3.0m equation: W= (23.60/d)

Interpreting Graphs
1.

A. Acceleration is directly proportional to force.

B. y=KX

C. slope= 0.625/kg

D. reciprocal of massE. 23N

F. interpolation

G. 33m/S2

H. extrapolation

2.

A. Y is proportional to X^2

B. 3 and 4

C.3 and 4

3.A B.

C. D.

1. A 2.C 3.C 4.D 5.B

After correcting those sheets we did a quick worksheet about unit conversion. After quickly going over that we picked up two sheets called Visualizing Data, and Nature of Light part 1, and worked on them for the rest of the class. Don't forget we have a test on tuesday! The next scribe will be... Dion!! :)

..

Hello guys, it's suzette!

I'm gonna make this short. Today, we just talked about the "Experiment and Modes of Representation". It can be found in the green booklet. This topic is about the different ways in which the relationship between two variables can be illustrated or represented--it includes the numeric, graphical, visual, and symbolic forms.

The Visual Mode

Ex. Adding weights to spring causes it to stretch. The more weight is added, the more it will stretch. Therefore, it is a qualitative observation--what we see is what we get.

The Numerical Mode

In the numerical mode of representation, to be able to collect data, we must define the properties of the object (s) we are measuring and use measurements. Then, the data can be examined to determine the exact relationship.

The relationship can be determined by the two variables:
1. Independent - variable that the experimenter changes in an experiment.
2. Dependent - variable that changes is response to changes in the independent.

The Graphical Mode

The graphical mode is a mathematical picture of the relationship and is a graph of the data. In this mode, the independent variable is placed on the y-axis (horizontal line) of a graph. On the other hand, the dependent variable is place on the x-axis (vertical line). When you have data, you just plot them on the graph and draw a line, joining the points together. Usually, when a graph is formed, it illustrates a linear or direct relationship between the x and y-axis on the graph.

The Symbolic Mode

The symbolic mode represents the relationship as an algebraic formula. The equation of a straight line is y=mx+b. The "m" represents the slope of the line. "B" represents the y-intercept.

For more information, see green booklet pages 8-10.

MOREOVER...

Today, we also did lab. It's just measuring jar lids (measuring diameter and the circumference). Then when enough data is gathered, we're supposed to create a graph to show the relationship between the diameter and the circumference of the lids. Then we just answer the questions written on the sheet. All the information are basically on the sheet so yeah....

It's due tomorrow!

and that is all....

I apologize for lack of information. =)

the next scribe is REBECCA

Lockdown Procedure.

JUST KIDDING! Please, did you guys really think I'd talk about something as boring as the lockdown procedure when we have some Physics to do?! Hahahah. xD


Hello friends, it's Nelsa again. We basically did three things todaay -

1. Concept Map: We were given a whole bunch of words (scientific method, observation, qualitative, quantitative, inference, hypothesis, experiment, conclusion, law, principle, theory, model) and Ms. K asked as to draw a map connecting the words to each other. Obviously you're not just going to write them down and draw random lines, it has to actually make sense, meaning the words you connect have to be related to each other. You gets? This is due tomorrow. =)
2. Practice Problems: The questions came from the textbook (pages 25-26, numbers 14-17) and dealt with significant digits while working with different operations - subtraction, multiplication, addition, division.
3. Significant Digits Worksheet: I believe it was called 'Determining Significant Digits'. This is also due tomorrow, but I guess if you weren't here then.. I don't know, it's late. =/

And that's it! Have fun homeworking/catching up/freaking out about catching up! xD

The next scribe shall be.. Suzette.