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Monday, September 1, 2014 Day 1

1. Please have these Items on your desk. Science Notebook. Agenda. Science Starters Sheet. Monday, September 1, 2014 Day 1. Science Starter : 2 Vocabulary words. Velocity - Speed in a given direction Force - A push or pull on an object. Update table of contents.

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Monday, September 1, 2014 Day 1

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  1. 1. Please have these Items on your desk. Science Notebook Agenda ScienceStarters Sheet Monday, September 1, 2014 Day 1 Science Starter: 2 Vocabulary words Velocity- Speed in a given direction Force- A push or pull on an object.

  2. Update table of contents • Page Date Activity 29 9/3 How to calculate speed & acceleration.

  3. How to Calculate Speed and Acceleration

  4. Speed • Speed- the distance traveled divided by the time during which the motion occurred. • Constant Speed-movement at a fixed distance per unit of time. • The same amount of distance is covered by the object in the same amount of time at each measurement of that same interval. • Instantaneous Speed-is the velocity of an object at a certain time. • For example:- Suppose you are driving in a car with your father see the speedometer, its speed constantly varies, Because speedometer give speed at a particular moment of time.

  5. Formulas • How to calculate it • Distance • Time • Time

  6. Variables Expressed by • Distance can be expressed in • km (kilometers), mi (miles), m (meters), ft(feet). • Time can be expressed in • Hours, minutes, seconds, days. • Speed can be expressed in • m/s (meters per second), cm/s (centimeters per second), km/ hr(Kilometers per hour).

  7. Determine which one is which T D S A T S

  8. Calculate it ____ ____ ____ ____ D T S D D= 20 laps * .5 miles D= D= 10 miles 10 miles S = D/T T= 2 hours S= 10 miles / 2 Hours S= ? 5 MPH

  9. Calculate it D T _____ __ __________ __ D T S= 30 Meters/ 20 minutes D= ? S= 1.5 MPM D= S*T T= 60 minutes D= 1.5 MPM * 60 Minutes S= 1.5 MPM D= 90 meters

  10. Calculate it _____ _____ _____ _____ T D T D S= 3 Blocks/ 5 Minutes D= 15 Blocks S= .6 bpm T= ? S= .6 bpm T= D/S T= 15 Blocks/ .6 bpm 25 minutes

  11. Acceleration • Acceleration- the rate at which velocity changes over time. • An object accelerates if it changes speed or direction.

  12. Acceleration Formula • Acceleration = Final speed- Starting speed Time it takes to change speed

  13. Calculate it SS ___ ______ ____ FS T FS- SS T T = 22 hr A = 0 km/ hr SS= 220 km/hr- 0 km/hr 22hr A = 220km/hr FS= 10 km/hr

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