1 / 18

11.3 Acceleration

11.3 Acceleration. Objectives. Represent and analyze the motion of an object graphically. Analyze the velocity of two objects in terms of distance and time (i.e., verbally, diagrammatically, graphically, mathematically).

sivan
Download Presentation

11.3 Acceleration

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. 11.3 Acceleration

  2. Objectives • Represent and analyze the motion of an object graphically. • Analyze the velocity of two objects in terms of distance and time (i.e., verbally, diagrammatically, graphically, mathematically). • Measure and analyze an object’s motion in terms of speed, velocity, and acceleration (i.e., verbally, diagrammatically, graphically).

  3. Introduction • As the ball falls, how does its speed change? • What happens as the ball rises from the ground back to his/her hand? • At what point(s) does the ball have zero velocity? • How does the velocity of the ball change?

  4. What is Acceleration? • Acceleration is the rate at which velocity changes. • Acceleration can be described as changes in speed, changes in direction, or changes in both. • Acceleration is a vector.

  5. I have a challenge… Three volunteers… Prizes involved…

  6. What is Acceleration? B. Acceleration can occur when… • An increase in speed. • A decrease in speed. • A change in direction.

  7. Roller Coasters Everest Roller Coaster Kingda Ka Goliath Roller Coaster

  8. Changes in Speed? C. An example of acceleration due to change is speed is free fall. • Free fall – the movement of an object toward Earth solely because of gravity. • The acceleration of gravity on Earth is 9.8 m/s2. • This means as things fall, their speed increases by 9.8 m/s.

  9. Constant Acceleration D. Constant Acceleration is a steady change in velocity. • Velocity changes the same amount each second.

  10. Distance – Time Graphs

  11. Objectives • Represent and analyze the motion of an object graphically. • Analyze the velocity of two objects in terms of distance and time (i.e., verbally, diagrammatically, graphically, mathematically). • Measure and analyze an object’s motion in terms of speed, velocity, and acceleration (i.e., verbally, diagrammatically, graphically).

  12. Calculating Acceleration E. You calculate acceleration for straight-line motion by dividing the change in velocity by the total time. Acceleration = Δ velocity = (νf– νi) total time t

  13. Instantaneous Acceleration F. Instantaneous acceleration is how fast a velocity is changing at a specific instant.

  14. Acceleration Practice • A car speeds up from 20 km/h to 35 km/h in 3 seconds. What is its acceleration? Given: Work: Formula: Answer:

  15. Acceleration Practice 2. A car slows from 40 km/h to 0 km/h in 5 seconds. What is its acceleration? Given: Work: Formula: Answer:

  16. Closure & Objectives • Represent and analyze the motion of an object graphically. • Analyze the velocity of two objects in terms of distance and time (i.e., verbally, diagrammatically, graphically, mathematically). • Measure and analyze an object’s motion in terms of speed, velocity, and acceleration (i.e., verbally, diagrammatically, graphically

  17. Review Questions

More Related