Sciences with TI-NspireTM

Technology

Module F

Lesson 3: Exercises

TI-NspireTM Technology

In the previous lesson you learned…

2 | Lesson F.3

That the Vernier DataQuest application automatically chooses the standard setting at the start of the application, depending on the connected sensor.

To change the collection setup of an experiment with a motion sensor.

That you can select a region of the collected data, before you do a curve fit.

That the derivative of the position function gives the velocity function and that de derivative of the velocity function gives the acceleration function.

That air resistance has an important impact on the free fall acceleration.

TI-NspireTM Technology

In this lesson you will:

• Use the TI-NspireTM software, installed on your computer to do some exercises.

• Use the motion sensor to check the law of conservation of mechanical energy.

• Use a temperature probe to analyze the temperature of melting ice.

• Practice the things you learned in the previous lessons.

3 | Lesson F.3

Exercise 1

• The law of conservation of mechanical energy is a special case of the general law of conservation of energy. Mechanical energy is defined as the total kinetic and potential energy.

• If you can neglect the air resistance, you can state that near the Earth the sum of all mechanical energy in the system is a constant: kinetic energy is transferred only into potential energy and potential energy is transferred only into kinetic energy.

• QUESTION: Is the mechanical energy of a falling book constant during the fall?

4 | Lesson F.3

Exercise 2

• When you take some ice cubes out of the freezer, you can expect that the temperature starts climbing up to room temperature.

• QUESTION: Is the graph of this climbing process a linear?

5 | Lesson F.3

Congratulations!

You have just finished lesson F.3!

6 | Lesson F.3