1 / 15

Bell Ringers

This educational material covers acceleration concepts in physics through bell ringer questions, graphing homework answers, and practice problems. Learn about units of acceleration, acceleration scenarios, and graphing acceleration with clear explanations and examples.

pgould
Download Presentation

Bell Ringers

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. Bell Ringers 1. Which of the following is NOTaccelerating? • A car slowing to a stop at a stop sign • You riding a Ferris Wheel • The moon orbiting the Earth • A cyclist riding constantly at 2 m/s on a straight path 2. Which of the following are the units for acceleration? (hint: more than one answer) a) m/s2 b) km/hr/s c) m/s d) miles per hour

  2. Day #2 Graphing

  3. HW Worksheet Answers 1. +7.5 km/hr/sec 2. +10 km/hr/sec 3. +2 m/sec2 4. +70 mi/hr/sec 5. -6.25 m/sec2 6. -2 m/sec2 7. -10 mi/hr/sec 8. +5 mi/hr/sec

  4. Bell Ringer • With a partner draw, the Distance vs. Time and Velocity vs. Time graphs for the buggy. • Did this object accelerate? Why or Why not?

  5. Recall….. Distance Constant Positive velocity Time Velocity Time

  6. Remember the 3 laws of acceleration! Acceleration occurs when an object - Speeds up (+) - Slows down (-) - Changes direction

  7. Graphing Acceleration • Each time interval the object is traveling a greater distance • The object has positive acceleration

  8. Recall….. stopped Distance Distance Constant Positive velocity Time Time 0 velocity Velocity Velocity Time Time

  9. Graphing Acceleration Distance Time Speed up Traveling a greater distance over time Velocity is increasing over time Velocity Time

  10. Graphing Acceleration Distance Time Slow down: Traveling less distance over time Velocity is decreasing over time Velocity Time

  11. 0 0 0

  12. Bell Ringer • What is the acceleration of a skater that starts from a velocity of 2 miles/hr East and reaches a velocity of 10 miles/hr in 25 seconds?

  13. Bell Ringer • What is the acceleration of a skater that starts from a velocity of 10 miles/hr East and slows to a velocity of 3 miles/hr in 15 seconds?

  14. Practice Problem • Describe the motion of the object at each part on the graphs. Distance C B E F D A Time A: + acceleration, speed up D: + acceleration B: not moving E: + constant velocity C: constant + velocity F: - acceleration Velocity Time

More Related