Today’s Agenda…11/3 Bellringer: What is the law of conservation of energy? Discuss True and False & Review Notes on Kinetic and Potential Energy Quiz.

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Today’s Agenda…11/3 Bellringer: What is the law of conservation of energy? Discuss True and False & Review Notes on Kinetic and Potential Energy Quiz tomorrow on energy

Kinetic and Potential Energy Study Pack #3

Today’s Target… I can explain the transfer and transformations of energy that occur in examples that involve kinetic and potential energy.

Energy Energy is the ability to cause change Energy exists in many forms There are two types of energy that relate to motion, kinetic and potential

Kinetic Energy Things that move can cause change Kinetic energy is the energy an object has due to its MOTION If an object isn’t moving, it doesn’t have kinetic energy

Kinetic Energy What effect does speed have on kinetic energy? Kinetic energy increases as an object goes faster A car going 60 mph has more kinetic energy than a car going 30 mph

Kinetic Energy What effect does mass have on kinetic energy? Kinetic energy increases as the mass of the object increases A tractor trailer traveling at 20 mph has more energy than a bicycle traveling at 20 mph

Potential Energy An object can have energy even though it is not moving Potential energy is the energy stored in an object because of its position A kite stuck in a tree has potential energy A stretched rubber band has potential energy

Potential Energy What causes the potential energy to increase? The higher an object is above the ground, the greater its potential energy The more mass an object has, the greater its potential energy

Potential Energy Which would have more potential energy? A lamp or a paperclip on a table? A bowling ball or a tennis ball at the top of a hill? A rubber band that is stretched 1 inch or 3 inches?

Transforming Potential and Kinetic Energy Potential energy can be transformed into kinetic energy Example: A book falls from a shelf Kinetic energy can be transformed into potential energy Example: You throw a ball straight up into the air

Energy Changes in Falling Water Potential energy is transformed to kinetic energy The kinetic energy is used to spin a generator that produces electricity