Teaching Demonstration

In summary, the pressure beneath a vertical column of water increases due to the weight of the water and can be calculated by multiplying the height, density, and gravity. The formula is P = h * D * g, where P is pressure, h is height, D is density, and g is gravity. This formula takes into account the effects of varying heights and column diameters.
  • #1
mjp42@csufresno.edu
1
0
Explain why pressure increaseds beneath a vertical column of water and how to calculate water pressure ate the base of the column. Include the effect of varying heights and column diameters.

thanks

mike
 
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  • #2
This sounds suspiciously like a homework assignment.

It also sounds suspiciously as though you haven't even attempted it -- the answer is simple and should be easy to find in any first-year physics textbook.

- Warren
 
  • #3
The pressure is based on the weight that must be supported at the given depth. The volume of a the cylinder is just area * height

[tex]v =ah[/tex]

Now you find the mass of the water which is just density * volume. I don't remember the symbol for density so I'll just use D.

[tex]m = vD[/tex]

[tex]m = ahD[/tex]

Now add gravity

[tex]F = ahDg[/tex]

Now find the pressure on the bottom of the cylinder by dividing by the area

[tex]P = hDg[/tex]

There you have it, the pressure at a given depth is height * density * gravity.
 
  • #4
The normal symbol for mass density is [itex]\rho[/itex] :smile:

- Warren
 

1. What is a teaching demonstration?

A teaching demonstration is a presentation or lesson given by a teacher to showcase their teaching abilities and methods. It is often a part of the interview process for a teaching position.

2. How long should a teaching demonstration be?

The length of a teaching demonstration may vary depending on the specific requirements of the interview. However, it is typically between 15-30 minutes.

3. What should be included in a teaching demonstration?

A teaching demonstration should include a clear lesson plan, engaging activities, and effective teaching strategies. It should also demonstrate the teacher's ability to effectively communicate with students and manage the classroom.

4. How can I prepare for a teaching demonstration?

To prepare for a teaching demonstration, it is important to research the school and its curriculum, familiarize yourself with the age group and subject you will be teaching, and practice your lesson beforehand. It may also be helpful to get feedback from colleagues or mentors.

5. How will a teaching demonstration be evaluated?

A teaching demonstration will be evaluated based on the teacher's knowledge of the subject, their teaching style and techniques, their ability to engage students and create an inclusive learning environment, and their overall presentation skills. It may also be evaluated based on how well the teacher responds to questions and feedback from the interviewers.

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