Video

• Weird Connections : Ball of Fire 20min.• Discovery Education

Add to Table of Contents:

• Energy In/Out Pg. 14• Phase Changes/Energy Pg. 15

Energy In/Out: pg 14

In: Energy types = List all of the types of energy you can

think of:

PHASE CHANGES & Energy Pg. 15

Description of Phase Change

Term for Phase Change

Heat Movement During

Phase Change

Solid to liquid

Liquid to solid

Melting Heat goes into the solid

Freezing Heat leaves the liquid.

Description of Phase Change

Term for Phase Change

Heat Movement During

Phase Change

Liquid to gas

Gas to liquid

Vaporization, which includes boiling and evaporation

Heat goes into the liquid.

Condensation Heat leaves the gas.

Solid to gas Sublimation Heat goes into the solid.

Example of sublimation

• What is energy? -Energy is the ability to do work and cause change.

Potential Versus Kinetic Energy

Potential Energy-

Kinetic Energy-

Is stored energy. Ex: the energy stored food, the energy in a ball at the top of stairs.

The energy of motion. Ex: a ball bouncing down the stairs, you running.

James Prescott Joule• 1840s – experiments to explore

nature of heat & heat transfer.• Discovered there was a direct

relationship between the energy put into the paddle and the rise of water temperature.

• A unit to measure energy is named after him, the Joule.

Energy Out: Pg. 14

• Describe 2 examples of kinetic energy and 2 examples of potential energy:

PE = 1. 2. KE= 1. 2.

Law of Conservation of Energy

• Energy can’t be created or destroyed. It can be transferred or transformed (converted).– Transfer-moves from one object to another but

stays the same type of energy– Transformation or Conversion-changed into a

different type of energy.