Work and Energy.

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Presentation transcript:

Work and Energy

Vocabulary Review Scalar – has magnitude and no direction Vector – has a magnitude and a direction Force – combination of the object’s mass and the acceleration of the object (F = ma) Displacement – has a magnitude (distance measured in meters) and a direction.

Force Reading Part 1: While reading highlight the following words: Displacement Work Part 2: Summarize Part 3: Answer the questions to check your understanding Part 4: Calculate work

What work is done when a refrigerator is pushed uniformly 12 m across the floor. The applied force is 480N. G: d = 12 m f = 480 N U: W E: W = f x d S: W = (480 N)(12m) S: W = 5760 Joules

Energy – Cornell Notes Read the Cornell Notes (CNs) As you read the CNs highlight the words below: Highlight the following words Energy Joules Work

Let’s meet Benny!

Summary Your summary should answer the essential questions (2 – 3 sentences).

Practice Problems Complete the work and energy practice problems