Last modified: Tue 10/01/2013 09:50:16 pm

Oklahoma State University

This is BCE # 3. It is OK to use your textbook, but if you can answers the questions without it that is OK too.

Answer all of the questions below. If you do not know an answer enter CNA. However, it will help me the most if you answer each question with your best intuition/idea about what would be a reasonable answer.


The BCE must be completed before class starts, for this BCE class has already met. It will not count towards your BCE total. NOTE: If class has not started and you receive this message, go ahead and do the BCE, I'll still count it.

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In this BCE we will explore a simulation that allows the mesurement of some properties of matter. This simulation was created by pHET Project at the University of Colorado-Boulder. Click here to open the simulation. Click on the link, open the simulation and re-size the window so you can see the simulation and the BCE.

1. Briefly describe what you see in the simulation window.

We will use this simulation to gather some data about some blocks of material. Be sure that in the upper right corner the Same Substance button is selected. If it is not, click on the button. Currently the material displayed is wood. You should see four blocks of wood. Click on the dropdown menu and select Brick as the material.

2. Using the balance located on the left side of the simulation window, measure the mass of each of the four blocks and enter the data into Table I below. Next, measure the volume of water displayed by each block and enter that number in the volume column in Table I. Confirm the mass and volume for Block A that has already been entered in Table I.

 

Block

Mass (kg)

Volume (L)

A

15.00

7.50

B

C

D

Table I.

 

3. As the mass of the blocks increase how does the volume of the blocks change?

4. In Table II below are four columns combining the variables mass and volume into four different relationships. Calculate the corresponding value of each relationship for each of the blocks.

 

Block mass - volume mass + volume mass/volume mass*volume
A
B
C
D

Table II.

 

5. Given that the mass of a new brick block is 2.24 kg predict the volume of that brick block. L

6. Given that the volume of a different brick block is 9.10 L predict the mass of that brick block. kg

7. In the dropdown menu in the right side of the simulation select 'Wood' and complete Table III.

 

Block

Mass (kg)

Volume (L)

A

B

C

D

Table III.

8. Describe any observeable difference(s) between the brick blocks and the wood blocks.

9. Is there anything about the questions that you feel you do not understand? List your concerns/questions.

10. If there is one question you would like to have answered in lecture, what would that question be?