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Unit 3: Motion

Unit 3: Motion. Mr. Chapman Science 10. Motion. Motion is a part of the everyday physical world. When we talk about motion, we typically use terms like distance, time, speed, acceleration, velocity, and displacement .

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Unit 3: Motion

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  1. Unit 3: Motion Mr. Chapman Science 10

  2. Motion • Motion is a part of the everyday physical world. When we talk about motion, we typically use terms like distance, time, speed, acceleration, velocity, and displacement. • In this unit, we will learn what all of these terms mean and how to apply them to the everyday world.

  3. Time • How do we define time? • Challenge: define time WITHOUT USING THE WORD TIME. It’s actually kind of tough... • Actual definition: the duration or period elapsed between two events

  4. Distance • Distance is the amount of space between two objects or points and is typically measured in metres. • What are some other units for distance that we encounter every day?

  5. You can measure distance by time. "How far away is it?" "Oh about 20 minutes." But it doesn't work the other way. "When do you get off work?" "Around 3 miles." -Jerry Seinfeld

  6. Converting Units • In the motion unit (and every science class you ever take in the future) it is going to be important for you to be able to convert from one type of unit to another type of unit. In order to do this, we are going to have to use conversion factors. • Examples of Conversion Factors.... What are others?

  7. Examples • Example: It takes Mr. Chapman 12 hours to come up with a joke that people might actually laugh at. How many days does it take?  • Note: This one is easy to do in your head, but it is important to work through the method as conversions will become more and more difficult. • Example 2: A train is travelling at a speed of 95 km per hour. What is the train’s speed in km per second?

  8. You try • A recipe calls for 9 teaspoons (tsp) of salt, but all you have to measure with are tablespoons (tbsp). How many tablespoons are required? Assume that 3 tsp = 1 tbsp. • A typical tennis player can serve the ball at 120 km per hour. How many meters per minute does the ball travel?

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