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Science Teacher Training in an Information Society
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Teaching with computer models

USIE

Workshop 1

Introduction
Section A
Section B
Activity B1
Activity B2
Activity B3
Activity B4
Activity B5
Section C
Section D
Section E
Section F
Section G

StartContents

Section B  Learning about the innovation

Activity B3  Beyond linear relationships (cont.)
Page 2 of 4
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Force and motion


Model 3a.1

In this model, you can plot a velocity-time graph and a distance-time graph for an object with a constant acceleration. There are two variables that you can change: the initial velocity of the object and the acceleration.

The velocity is calculated from the formula v = u + at, and the distance travelled is calculated from the formula s = (u + v) t / 2.

The scales of the axes on the graphs are fixed. This allows you to compare the relative sizes of the velocity and distance as you change the variables.


Model 3a.2

This model is identical to Model 3a.1, with the exception that the scales of the axes automatically adjust in order to plot the range of calculated values. This means that you can explore a wider range of values than in the previous model, including negative values.

(Model not shown here.)



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