Mar. 4
By the end of this lesson each student should be able to...
• Recall and be able to use equations for area of a circle and pressure.
• Produce force measurement in Newtons (N) when given mass in g or kg
• Determine pressure when provided with measurements for force and area
• Describe the relationship between:
- pressure and force when area stays the same or changes
- pressure and area when force stays the same or changes
- force and area when pressure stays the same or changes
Bell Ringer:
1) If you had 500 N force on an area of 10 cm^2, what would the pressure be?
2) How is pressure affected by increasing force while keeping area the same?
3) How is pressure affected by increasing area while keeping force the same?
Lesson:
1) Collect "Pressure Print" lab from students.
2) Share textbook with students (click here to download chapter in pdf format.)
3) Call attention to project at back of chapter (dentist chair).
4) Assign students to write "Specifications" for a dentist chair project. Students may want to see previous project specifications used for trebuchet project.
5) Student project specification should include the following:
a) Descriptive title
b) Statement of the goal or objective (what the project should accomplish)
c) Grading description (how will projects performance be graded or assessed? What scoring system will be used?)
d) List of permitted and/or prohibited materials
e) Size limitations if appropriate
f) Image of project (or facsimile)
g) Rubric for grading
h) Due date
i) any additional requirements (like drawing plans, building during class time or at home).
Assignment:
Students complete their "Project specifications" in hard copy and hand in to Mr. Reimer next class (Thursday morning).
