Starters for Week of Oct 12 – Oct 16 Name 6 simple machines W Name 2 classes of energy Th Calories per serving F – What does the number of Calories per serving indicate?

Forms of Energy

Ability to do work or cause change What is energy?

Energy… Produces Warmth Produces Light Produces Sound Produces Movement Produces Growth Powers Technology

How are energy, work, & power related? Work= transfer of energy Power = rate of energy transfer How can you judge how much power is involved?

POTENTIAL KINETIC Stored energy or energy of position Gravitational, Stored Mechanical, Nuclear, Chemical Energy of motion Motion, Electrical, Sound, Radiant, Thermal Classes of Energy

Kinetic Energy What factors affect an object’s kinetic energy? 1.Mass 2.Velocity

Potential Energy Stored energy that results from the position or shape of an object

Types of Potential Energy Gravitational Elastic

Potential energy related to an object’s height Any object that is “up high” Gravitational Potential Energy

The potential energy associated with objects that can be stretched or compressed. Elastic Potential Energy

Review Part 1 Energy is the ability to do work or cause change. 2 classes of energy: – Kinetic & potential Kinetic = energy of motion Potential= stored energy Factors affecting kinetic energy: mass & velocity

Review Part 2 2 types of Potential Energy: Gravitational & Elastic Gravitational depends on how high Elastic depends on an object being stretched/ compressed