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Motion - PowerPoint PPT Presentation


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Motion. Motion. Motion - the change in the position of an object with respect to time and its reference point Motion is RELATIVE Reference point/ frame of reference : a point/object that is not moving. Reference Point and Relative Motion. Example:

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PowerPoint Slideshow about 'Motion' - irene-ramsey


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Presentation Transcript
motion1
Motion
  • Motion- the change in the position of an object with respect to time and its reference point
  • Motion is RELATIVE
  • Reference point/ frame of reference: a point/object that is not moving
reference point and relative motion
Reference Point and Relative Motion

Example:

  • If you are sitting on a train looking at your neighbor, neither of you seem to be moving
  • If you look out the window at people standing on the side, they seem to be moving backwards
  • If the people on the side are looking at you, you seem to be moving forward
describing motion
Describing Motion
  • Distance- the length between two points
    • Units: meters, kilometers, etc.
  • Time
speed
Speed
  • Speed- is the distance traveled per unit of time
    • Units: m/s, km/s, etc.

Formula:

S = D/t

  • Solve for other variables:

D= s*t

t= D/s

S= speed

D = distance

t= time

average speed
Average Speed
  • The total distance divided by the total time
instantaneous speed
Instantaneous Speed
  • The speed at any given instant
slide8

You must always show your work and units!!

 ALWAYS METRICS

No answer is complete without units!

let s try one
Let’s try one!

Calculate the speed of a dog running through a field if he is covering 23.7 meters in 54 seconds.

Given: Formula:

Find: Work Space:

slide10

If a cross country runner covers a distance of 347 meters in 134 seconds what is her speed?

Given: Formula:

Find: Work Space:

velocity
Velocity

Velocity- The speed and direction an object is moving in

Units: speed and a direction

Example: The car’s velocity is 60 km/hr EAST

try this
Try This:

Calculate the velocity of a dog running north through a field if he is covering 23.7 meters in 54 seconds.

Given: Formula:

Find: Work Space:

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