UTPA STEM/CBI Courses/Gravity and Atmospheric Pressure

Course Title: General Chemistry II

Lecture Topic: Gravity and Atmospheric Pressure

Instructor: Frank Dean

Institution: The University of Texas Pan American

Backwards Design

Course Objectives

• Primary Objectives- By the end of the challenge the students will be able to:
  • Use the equation P = h x d x g
  • Understand the meaning of each of the variables in the equation.

• Sub Objectives- The objectives will require that students be able to:
  • Understand the interaction of the density of a liquid with the force of gravity to explain the actual height of the column of liquid that is supported by the atmospheric pressure.

• Difficulties- Students may have difficulty:
  • Understanding how the units for height, density, and the force of gravity combine to be equivalent to units of pressure

• Real-World Contexts- Ways that students can use this material in the real world:
  • In an application to or in an interview with NASA for an internship or a work-study program

Model of Knowledge

• Concept Map
  • Predicting the height of a column of a particular liquid supported by atmospheric pressure
  • Identifying the device that can be used to measure atmospheric pressure
  • Identifying how the device will be used to measure atmospheric pressure

• Content Priorities
  • Enduring Understanding
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  • Important to Do and Know
    • Review the calculation for the pressure exerted on a column in the atmosphere
    • Review the density of various liquids
    • Review the reason for the units associated with the force of gravity
  • Worth Being Familiar with
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Assessment of Learning

• Formative Assessment
  • In Class (groups)
    • Students will assemble into groups
  • Homework (individual)
    • Each student will write a report outside of class incorporating their own understanding of the solution after the work in groups.
• Summative Assessment
  • An in-class quiz will individually test students over their ability to clearly describe the method of measuring the force of gravity on Mars.

Legacy Cycle

OBJECTIVE

By the next class period, students will be able to:

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The objectives will require that students be able to:

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THE CHALLENGE

A group of astronauts takes an experiment to Mars to measure the force of gravity there. They know that on earth the pressure of the atmosphere will support a column of liquid of a certain height. How can they use this concept to calculate the Martian gravitational constant?

GENERATE IDEAS

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MULTIPLE PERSPECTIVES

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RESEARCH & REVISE

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TEST YOUR METTLE

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GO PUBLIC

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Pre-Lesson Quiz

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Test Your Mettle Quiz

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