Loading presentation...

Present Remotely

Send the link below via email or IM


Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.


Predicting Swings

Day 4

Summer Roland

on 25 August 2013

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Predicting Swings

Day 4 - Predicting Swings
Look at the pictorial graph you created, describe the relationship between the length of the swinger and the number of swings that the graph displays.
Your picture graph is a picture of the swingers on the number line. The same information can be displayed symbolically on a two-coordinate graph.



- shows the outcome of a series of experiments when a variable is changed by steps.
Just like on the picture graph, the horizontal line
- represents what is known before the experiment starts. This is the independent variable.
In this case we know the length of the pendulum even before we swing it.
The vertical line
- represents what we find out by doing the experiment. This is the dependent variable.
In this case we find out how many swings each different pendulum makes in 15 seconds.
You now have created three graphs of the swingers.
-> The real swingers hanging from the number line was a concrete graph
-> The picture graph was a drawing of the real objects.
-> The two-coordinate graph used dots to symbolize the real objects.
How are the three graphs different?

How are they the same?

Why is a picture graph useful?

What is the benefit of using a two-coordinate graph?
Picture graphs are useful because they are made on paper, so they are easily stored; they look like the real thing so they don't need precise labeling.
The benefit of using a two-coordinate graph is that not all experimental results can be made into concrete or pictorial graphs.

is an estimate based on information or experience.
Two-coordinate graphs are useful for making predictions.
For instance, can you predict how many swings an 80-cm pendulum will make in 15 seconds?
Read "Swinging through History?"
= independent variable
= dependent variable
Length of pendulum v. Number of swings
Titles to graphs are all written the same
IV v. DV
The independent variable versus the dependent variable.
Full transcript