Download presentation

Presentation is loading. Please wait.

Published byKirsten Tiffany Modified over 2 years ago

1
Vocabulary Acceleration: The rate at which velocity changes Constant acceleration: A steady change in velocity Announcements:

2
Science 8 th Grade

3
S8P3. Students will investigate relationship between force, mass, and the motion of objects. a. Determine the relationship between velocity and acceleration. (DOK 2)

4
It is a rate! Let’s try this one more time…what is a rate? Right…right… What is changing? Velocity Standard unit: meters per second squared (m/s 2 )

5
Speed! Positive acceleration Positive change in speed Increase speed Negative acceleration Negative change in speed Decrease speed

6
Speed and direction Yes, changing at the same time.

7
From the vocabulary, we know it is steady change in velocity Essentially, a constant rate change in velocity Or…velocity is changing the same amount each second www.youtube.com /watch?v=BGfPU_g yqm8 www.youtube.com /watch?v=BGfPU_g yqm8

8
a = v f – v i t a – acceleration v f – final velocity v i – initial velocity t – time Units? Try some problems.

9
1. A car traveling at 10 m/s starts to decelerate steadily. It comes to a complete stop in 20 seconds. 2. An airplane travels down the runway for 4.0 seconds with an acceleration of 9.0 m/s 2.

10
Demonstrated on a speed vs. time graph The slope demonstrates acceleration Or…increasing or decreasing slope of distance-time graph

11
Explain how acceleration is considered a rate? It is a vector too… what does that mean? What kind of graph shows acceleration?

Similar presentations

OK

Wednesday October 26, 2015 Thursday October 27, 2015 Unit QuestionWhat role do forces play in the world around us? Guiding Question / Learning Target What.

Wednesday October 26, 2015 Thursday October 27, 2015 Unit QuestionWhat role do forces play in the world around us? Guiding Question / Learning Target What.

© 2018 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on ac to dc rectifier circuit Ppt on object-oriented concepts polymorphism Ppt on ar 25-50 Ppt on periscope tv Download ppt on recession in india Ppt on indian supreme court Ppt on cross-sectional study advantages and disadvantages Ppt on soft skills for engineering students Ppt on reaction mechanism in organic chemistry Ppt on 5 star chocolate