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AMSTI Lesson 2: Making a Battery

AMSTI Lesson 2: Making a Battery. CONCLUSION. A battery contains a limited amount of energy. The electrical energy that a battery supplies is the result of chemical reactions between the electrodes and the electrolyte in the battery.

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AMSTI Lesson 2: Making a Battery

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  1. AMSTI Lesson 2: Making a Battery

  2. CONCLUSION • A battery contains a limited amount of energy. • The electrical energy that a battery supplies is the result of chemical reactions between the electrodes and the electrolyte in the battery. • Chemical energy is transformed into electrical energy, then heat and light in the bulb.

  3. THREE MAIN COMPONENTS OF A BATTERY • Negative terminal – (zinc) – accumulates negative charge (gains electrons). • Positive terminal – (copper) – accumulates positive charge (loses electrons). • Electrolyte– a liquid solution or a paste whose molecules spontaneously separate into positively or negatively charged atoms or groups of atoms, called ions.

  4. VOCABULARY – LESSON 2 • In this lesson, we made a device composed of two metal electrodes in an electrolyte that transfers chemical energy into electrical energy. This device is known as a (1) battery.

  5. VOCABULARY – LESSON 2 • This ability to do work is: (2) energy. • The battery is made of two metal strips, copper and zinc. The strips are (3) electrodes • Negatively-charged particles of an atom are (4) electrons.

  6. VOCABULARY – LESSON 2 • The liquid solution in the battery is an (5) electrolyte. • A battery with a liquid electrolyte is a (6) wet-cell battery. • A battery with an electrolyte made of paste is a (7) dry-cell battery.

  7. VOCABULARY – LESSON 2 • The light eventually stopped burning after being removed from the copper sulfate solution. The chemical reaction could only generate a certain amount of electrical energy per charge. This is the (8) electric potential of the battery. • The electric potential of the battery is measured in (9) volts. • This is named after the person who built the first electric battery - (10) Alessandro Volta

  8. VOCABULARY – LESSON 2 • Energy stored in the battery is (11) chemical potential energy. • Potential energy - stored energy or energy something possesses by virtue of its position. • Kinetic energy - energy that something possesses by virtue of its motion………..

  9. Reflecting on What You’ve Done • Pg. 15 • Answer A,B,C,D,E ( should have been completed on 3/13 Wed. after the lab)

  10. Batteries – Electricity to Go (pg. 16 -17) • Compare the battery you made with Volta’s battery. How are they similar? How are they different? 2. Davy’s batteries were not practical for everyday use. Why? What did Davy do with the batteries he built? 3. Why do some scientists and archaeologists think Volta was not the first person to build a battery?

  11. Wet-cell and Dry Cell Batteries (pg. 18 -19 ) 1. What type of battery did you make in lesson 2? what was it made of? 2. Why is the battery called “wet-cell”? 3. In your battery copper sulfate was called what? 4. When you combine more than one cell in a battery, what happens to voltage?

  12. Wet-cell and Dry Cell Batteries (pg. 18 -19 ) 5. How many cells is a car battery made of? 6. What is the electrolyte in a car battery? 7. How does a dry-cell battery differ from a wet-cell? 8. When the dry cell battery was invented it made batteries what?

  13. Lesson 2: Checklist ____ Objectives pg. 12 (3) ____ Getting Started pg. 13/ What Do We Know About Batteries? (part 1 & 2) ____ Procedure 2.1 # 3, 4, 5, 7, 8, 9 ____ Vocabulary (11) ____ Reflecting on What You’ve Done A – E ____ Batteries Electricity to Go pg. 16 -17 # 1-3 ____ Wet Cell & Dry Cell Batteries pg. 18 -19 # 1- 8

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