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Chapter 3: Laboratory Investigations
Chapter 3: Laboratory Investigations
There are two laboratory investigations in chapter 3. Please see the individual pages for more explanation on each laboratory investigation.
Before we look at the labs:
Before we look at the labs:
In these labs, we are going to be taking measurements by using a ticker tape timer. A ticker tape timer makes dots on a paper tape every .016 seconds. So if a piece of tape is pulled through the timer for a second there will be 62.5 dots on it.
Since the spaces between the dots take such a short time (.016 s) the ticker timer is a very useful instrument for measuring short intervals of time.
We have to be very careful here; as there is .016 s between dots we must count the number of SPACES and not the number of dots themselves.
A piece of tape is shown in the diagram above. You can see that the faster the tape is pulled through the timer the furthest apart the dots get. If the tape is pulled through at a steady speed the dots remain the same distance apart.
Watch the video to see how the ticker tape timer works.
Lab: Acceleration due to Motion
Lab: Acceleration due to Motion
Purpose: To observe and analyze the motion of a uniformly accelerated body moving in a straight line.
Lab: Acceleration due to Gravity
Lab: Acceleration due to Gravity
Purpose: To observe a falling object and determine the acceleration due to gravity.
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