Using Technology to analyse
motion
Physics on the Road
Lesson 5
LI…
• Use a video camera to record motion data.
• Perform simple calculations of average
speeds.
• Plot velocity–time grap...
Investigate
• We are going to use a video camera to
investigate a ball rolling down a track.
• The video camera can be use...
Data table – use excel
time /s displacement
/m
velocity
ms-1
Motion Graphs – use excel
• Calculate the average velocity for your ramp
• Plot a displacement – time graph
• Estimate/cal...
Rolling Ball
• As a ball rolls down a track it
accelerates (gains speed).
• This acceleration is due to the
component of t...
Acceleration due to gravity
• Using our results how can we find g?
• Compare your value to the accepted figure
(9.81 ms-2)...
Report - homework
Rolling Ball
Aim – Use graphs and formulas to analyse the rolling of a ball and determine the
accelerati...
Friction compensate
• Try to adjust the gradient of your ramp to
make it friction compensated.
• This means the ball will ...
Upcoming SlideShare
Loading in …5
×

Physics On the Road - Lesson 5

253 views
179 views

Published on

Published in: Technology, Education
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
253
On SlideShare
0
From Embeds
0
Number of Embeds
14
Actions
Shares
0
Downloads
2
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Physics On the Road - Lesson 5

  1. 1. Using Technology to analyse motion Physics on the Road Lesson 5
  2. 2. LI… • Use a video camera to record motion data. • Perform simple calculations of average speeds. • Plot velocity–time graphs. • Use velocity–time graphs to calculate distance travelled and acceleration.
  3. 3. Investigate • We are going to use a video camera to investigate a ball rolling down a track. • The video camera can be used in playback to break the motion of the ball into time intervals. • The track is made of two metres rulers and so the displacement of the ball can be recorded for each time interval.
  4. 4. Data table – use excel time /s displacement /m velocity ms-1
  5. 5. Motion Graphs – use excel • Calculate the average velocity for your ramp • Plot a displacement – time graph • Estimate/calculate the gradient of the graph near the beginning and at the end of the graph. • Calculate the average velocity for each time interval (use the spreadsheet) • Plot a velocity time graph. Should be straight. • Calculate the distance travelled using your velocity time graph. • Find the gradient of the velocity time graph and hence show the acceleration.
  6. 6. Rolling Ball • As a ball rolls down a track it accelerates (gains speed). • This acceleration is due to the component of the balls weight (caused by the acceleration of gravity) acting down the track g θ g
  7. 7. Acceleration due to gravity • Using our results how can we find g? • Compare your value to the accepted figure (9.81 ms-2) • How can we improve this investigation? • TABOO – “get more betterer/moderner equipment” – reliability of the data
  8. 8. Report - homework Rolling Ball Aim – Use graphs and formulas to analyse the rolling of a ball and determine the acceleration due to gravity Variables Diagram Method Results Graphs Discussion - Explain what the results mean by identifying trends and patterns .Explain sources of error/uncertainty and difficulties. How these errors could be reduced. Indicate how the experiment could be improved in future. Conclusion
  9. 9. Friction compensate • Try to adjust the gradient of your ramp to make it friction compensated. • This means the ball will not gain speed but travel at a constant velocity. • Check using the video camera. • Record the data and plot a displacement time graph.

×