1 / 21

Reference Point Scalar Vector Position

Vocabulary to Know !. Reference Point Scalar Vector Position. Distance Displacement Speed Average Speed. Reference Point. Def : a point that all motion will be measured relative to the Starting Point This is the starting point. Two Types of Units. ____________:

ivrit
Télécharger la présentation

Reference Point Scalar Vector Position

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Vocabulary to Know! • Reference Point • Scalar • Vector • Position • Distance • Displacement • Speed • Average Speed

  2. Reference Point • Def: a point that all motion will be measured relative to the Starting Point • This is the starting point.

  3. Two Types of Units • ____________: • Unit includes only objects magnitude (numerical value) Examples:____________________ • ____________: • Unit includes magnitude and direction Example: going 100 mph to the East Example:_____________________________________________________

  4. Two Types of Units • Scalar: • Unit includes only objects magnitude (numerical value) Example: speed, distance • Vector: • Unit includes magnitude and direction Example: going 100 mph to the East Example: Velocity, acceleration, force, displacement,

  5. Position • Def:____________________________________________________________ • Symbol =_____ • Unit = _______ • Scalar or Vector? • Use the position vs time graph to calculate the speed of the bug using s=d/t_______________

  6. Position • Def: a point some distance and direction from my reference point • Symbol = x • Unit = meters (m) • Scalar • Use the position vs time graph to calculate the speed of the bug using s=d/t_______________

  7. Distance • Def:_______________________________________________________________ • Example: If Dallas was 100 miles away and I drove to and from Dallas, what would be my distance? ?_______ miles to Dallas ?_______miles from Dallas Total miles driven (distance)?___________

  8. Distance • Def: refers to the total distance traveled • Example: If Dallas was 100 miles away and I drove to and from Dallas, what would be my distance? ?_______ miles to Dallas ?_______miles from Dallas Total miles driven (distance)?___________

  9. Displacement • Def:_____________________________ (Δx = xfinal – xinitial) =___________ – __________ Example: If Dallas was 100 miles away and I drove to and from Dallas, what would be my displacement? • Start point = ________ • End point = _________ • Displacement=____________

  10. Displacement • Def: Refers to the change in position (Δx = xfinal – xinitial) Finish pt – start pt Example: If Dallas was 100 miles away and I drove to and from Dallas, what would be my displacement? • Displacement would be zero • Start point = Houston • End point = Houston

  11. Distance Scalar or Vector Unit:________ Formula: ____________Used to find: _________ Symbol:_____ Displacement Scalar or Vector Unit:_________ Formula: _____________ Used to find: ___________ Symbol:______ Distance vs. Displacement

  12. Distance Scalar quantity Unit: m, km Total distance traveled Used to find Speed Symbol: d Displacement Vector quantity Unit: m, km Δx = xfinal – xinitial Used to find Velocity Symbol: Δx Distance vs. Displacement

  13. Distance vs. Time Graphs

  14. Speed • Def:_______________________________________________________________ • Scalar or Vector Quantity? • Unit:______________________ • Slope of the distance vs. time graph • Can be read directly off a speed vs. time graph • Symbol:____

  15. Speed • Def: How fast you change position (distance traveled per unit time) • Scalar Quantity • Unit: meters per second (m/s) • Slope of the distance vs. time graph • Can be read directly off a speed vs. time graph • Symbol: s

  16. Average Speed • Def:______________________________ • Scalar or Vector? • Unit: ________ • Symbol: _______ What is the average speed of object in graph? Use Rise over run __________________

  17. Average Speed • Def: total distance divided by total time • Scalar quantity • Unit: m/s • Symbol: s What is the average Speed? Rise over run 2m/4sec = .5 m/sec

  18. What is the speed of Light?? • The sun is ___________km from the Earth or _________ miles • It takes light _____seconds to travel from the Sun to the Earth in the vacuum of outer space. • What is the speed of light?? • S =______________ Memorize this number!

  19. What is the speed of Light?? • The sun is 150,000,000 km from the Earth or 93,000,000 miles • It takes light 500 seconds to travel from the Sun to the Earth in the vacuum of outer space. • What is the speed of light?? • S = 300,000 km/s Memorize this number!

  20. Slope Determines Velocity! Describe the motion in the following graphs based on slope using: “lesser”, “zero”, “greater” _________ velocity _________velocity __________velocity

  21. Slope Determines Velocity! Describe the motion in the following graphs based on slope using: “lesser”, “zero”, “greater” NO (zer0) velocity Slower velocity Faster velocity

More Related