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Kermit Learns Kinematics Quantities

Kermit Learns Kinematics Quantities. Don’t let the details leave you in the dust!. KL physics 10. Kinematics is…. The physics of how an object moves: How far does it go. How fast does it go. How fast it gets faster or slower. How long does it take. Watch for these vocabulary words.

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Kermit Learns Kinematics Quantities

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  1. Kermit Learns Kinematics Quantities Don’t let the details leave you in the dust! KL physics 10

  2. Kinematics is… The physics of how an object moves: Howfar does it go. Howfast does it go. Howfast it gets faster or slower. Howlong does it take.

  3. Watch for these vocabulary words. Vector Scalar Distance Displacement Speed Instantaneous Speed Velocity Acceleration

  4. Vector and Scalars, Huh? Magnitude –a measure of the size, amount or quantity of an object (how many, how much) Example: Sai wears an extra large t-shirt My physics book has a mass of 3 kg. Scalar - a quantity that has magnitude only. Example: I waited for 30 minutes. He drove 75 mph. Vector – a quantity that has magnitude and direction. Example: You drive 50 miles east. The plane flies 300 mph south.

  5. Distance vs. DisplacementHow far did it travel? Displacement is the difference in position from start to finish. The symbol is The unit for displacement is meters Finish displacement distance Distance is the length of the path from start to finish. The symbol is d. The unit for distance is meters Start An object travelling in only one direction will have the same distance and displacement.

  6. Speed vs VelocityHow fast is it moving? An object traveling in one direction only will have the same speed and velocity.

  7. Instantaneous Speed Good news! No equation! This is the speed at a single instant in time. When you check your speedometer you are checking instantaneous speed.

  8. Kermit wants to know…What if I want to change my speed? Possible responses: Too bad for you. Why would you do that? Isn’t this speed good enough? What do you mean? I’m sure there’s some physics to learn about.

  9. AccelerationHow fast did it get faster or slower or did it turn the corner? If an object is speeding up, slowing down or changing direction it is accelerating.

  10. Apply this to your life… When you are riding in a car think about how the direction and speed are changing as the car moves along. Is the speed constant? Is the direction changing? Is the velocity constant? Is the car accelerating?

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