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Solids, Liquids, and Gases

Lesson 1: Energy Transformations and Conservation

The Transfer of Heat

Define:

Solid:

Liquid:

Gas:

Freezing point:

Boil:

Boiling point:

Energy: the ability to do work or cause change.

State: is the form in which matter exists

  • when heat is added, to a system, the temperature of substances in the system increases...when removed, the temperature decreases.
  • change of state

Goal: Describe the three forms of heat transfer.

Answer: How is Heat Transferred?

Heat is transferred from warmer areas to cooler areas by conduction, convection, and radiation.

Heat transfer stops when all objects reach the same temperature.

Heat Transfer (pg. 361)

Convection:

Convection current:

Radiation:

Conduction:

The Transfer of Heat

CW: Create the table on pg. 362

CW: pages. 362-363

Identify Conduction, Radiation, Convection in the picture.

Goal Questions:

Energy Conservation

Energy and Change of State

Law of conservation of energy: The scientific principle that energy is neither created nor destroyed during a transformation.

  • How Does Heat Affect a System?
  • What Forms of Energy Are Related to Particles?
  • How is Energy Conserved During a Transformation?

Friction: The force that one surface exerts on another surface when the surfaces rub against each other.

Potential Energy:

Kinetic Energy:

CW: pg. 355

Assess Your Understanding

3a-c and Got it?

CW: pg. 349 Assess Your Understanding

1a-b

What Forms of Energy Are Related to Particles?

Energy Transformation: A change from one type of energy to another.

1. Nuclear Energy

2. Thermal Energy

3. Electrical Energy:

4. Electrogmagnetic Energy

5. Chemical Energy:

CW: Assess Your Understand

pg. 351 2a-b; Got it?

Chapter 10: Energy Transformation and Conservation

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