PASCO ME-6810 Time of Flight Accessory - Manual (Page 16)

Time of Flight Accessory Model No. ME-6810
16 ®
Teacher’s Guide
Experiment 1: The Relationship between Time of Flight
and Initial Velocity
Notes on Setup:
2. It is important to keep the launcher exactly horizontal. Use a spirit
level for best results.
3, 4. You may use one of several timing options for this experiment.
Consult the manual for your computer interface, and then connect
things so that the Photogate starts the timer and the timer plate of the
Time-of-Flight Accessory stops it. Alternately, you may use the
PASCO ME-9215A or ME-9206A Photogate Timers.
Notes on Procedure:
4. The times will be nearly the same, if the launcher is horizontal. You
will notice a systematic error if the launcher is not exactly horizontal.
5. Setting the launcher to some angle other than 0° will significantly
affect the time.
Experiment 2: Predicting Horizontal Distance from a
Launched Projectile
Notes on Setup:
3-5. You may use any compatible computer interface (i.e.
ScienceWorkshop 750 SCSI or 750 USB, or a PASPORT Photogate
Port with USB link). In any case, you will want to arrange things so
that you can record the times between the two Photogate signals and
the time between the second Photogate and the timer plate.
Notes on Analysis:
3. Depending on your interface program, the time given for each event
may be the total time since the first event, rather than the time since the
last event.