Upcoming SlideShare
×
Like this presentation? Why not share!

Like this? Share it with your network

Share

# Ch12 speedsection3

• 422 views

More in: Education
• Comment goes here.
Are you sure you want to
Be the first to comment

Total Views
422
On Slideshare
422
From Embeds
0
Number of Embeds
0

Shares
2
0
Likes
1

No embeds

### Report content

No notes for slide

### Transcript

• 1.
• 2. Motion and Force
• Chapter Twelve: Distance, Time, and Speed
• Chapter Thirteen: Forces
• Chapter Fourteen: Force and Motion
• 3. Chapter Twelve: Distance, Time, and Speed
• 12.1 Distance, Direction, and Position
• 12.2 Speed
• 12.3 Graphs of Motion
• 4. 12.3 Graphs of Motion
• A position vs. time graph that is a straight line always means the object moves the same distance during each time period.
• 5. 12.3 Graphs of Motion
• You can use position vs. time graphs to compare the motion of different objects.
• The steeper line on a position vs. time graph means a faster speed.
• 6. 12.3 Slope
• The steepness of a line is measured by finding its slope.
• The slope of a line is the ratio of the “rise” to the “run”
• 7.
• 8.
• 9. 12.3 Graphs of changing motion
• Objects rarely move at the same speed for a long period of time.
• A speed vs. time graph is also useful for showing the motion of an object that is speeding up
• or slowing down.
• 10. Technology Connection
• That first roller coaster was all wood and ran in a straight line.
• Roller coasters are now made of wood or steel, and the tracks include a variety of twists and turns and loops and drops that make the ride scary and thrilling.
Roller Coasters: The Physics Behind the Thrill
• 11. Investigation 12B
• How do we describe motion for which the speed is not constant?
Motion with Changing Speed