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3. Acceleration. You can calculate acceleration by dividing the change in velocity by the change in distance. An object accelerates when either its speed or its direction changes. 3. Acceleration. 3. Acceleration. What are three ways an object can accelerate? - PowerPoint PPT Presentation
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LESSON INTRODUCTION
Get Ready
Before you begin, decide if you agree or disagree with each of these statements.
As you view this presentation, see if you change your mind about any of the statements.
What do you think?
3 Acceleration
Get Ready
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LESSON INTRODUCTION
Do you agree or disagree?
• You can calculate acceleration by dividing the change in velocity by the change in distance.
• An object accelerates when either its speed or its direction changes.
3 Acceleration
Key Concepts/Essential Questions
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LESSON INTRODUCTION3 Acceleration
• What are three ways an object can accelerate?
• What does a speed-time graph indicate about an object’s motion?
Vocabulary
Watch out for these words!
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LESSON INTRODUCTION
• acceleration
3 Acceleration
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LESSON INTRODUCTION3 Acceleration
Is velocity changing?
Look at the photo at the beginning of the lesson. How does the velocity of this motorcycle racer change as he speeds along the track? As he enters a curve, he slows down, leans to the side, and changes direction. On a straightaway, he speeds up and moves in a straight line. How can the velocity of a moving object change?
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3 Acceleration
Lesson Review
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LESSON WRAP-UP
Do you agree or disagree?
You can calculate acceleration by dividing the change in velocity by the change in distance.
3 Acceleration
Disagree. Acceleration is calculated by dividing change in velocity by change in time.
Lesson Review
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LESSON WRAP-UP
Do you agree or disagree?
An object accelerates when either its speed or its direction changes.
3 Acceleration
Agree. An object accelerates when it speeds up, slows down, or changes direction.
Key Concept/Essential Question Review
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LESSON WRAP-UP
What are three ways an object can accelerate?
3 Acceleration
Acceleration is a change in velocity over time. An object accelerates when it speeds up, slows down, or changes direction.
Key Concept/Essential Question Review
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LESSON WRAP-UP
What does a speed-time graph indicate about an object’s motion?
3 Acceleration
A speed-time graph shows the relationship between speed and time and can be used to determine information about the acceleration of an object.
