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Sensors |
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Experiment |
LoggerPro3 file(s) in ÒProbes & SensorsÓ folder |
Sensor |
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Unit I – Scientific Thinking in Experimental
Settings Factors Affecting the Period of a Pendulum (length, amplitude, and mass vs period) |
Photogates>Pendulum Timer Single channel photogate Pendulum Timing. Place a
photogate at the bottom of the pendulum swing. Connect a Vernier Photogate on
DIG/SONIC 1. Reported periods
are from blocking to the second following blocking by the pendulum bob. |
photogate |
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Unit II – Particle Moving with Constant Velocity MBL Exercises (matching position vs time, velocity vs time and
written descriptions of motion with actual motion of a person) |
Motion Detector>Motion Detector Motion Detector>Position Match 1 Motion Detector>Velocity Match |
motion detector |
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Unit III – Uniformly Accelerating Particle Model (displacement, velocity and acceleration vs time) |
Photogates>Pulse Timer – Two Gates This file uses two photogates to determine the time it
takes an object to go from gate 1 to gate 2. |
two photogates
dynamics system |
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Unit III – Uniformly Accelerating Particle Model Finding
the Acceleration of Gravity (use method and equipment of choice to determine a
numerical value for g) |
Photogates>Motion Timer Picket Fence Photogates>Pulley This file is setup to collect data as a Smart Pulley
rotates. The distance traveled for each spoke of the Smart Pulley is assumed
to be 0.015 meters which is the proper distance if you are using a string in
the groove of the pulley. Motion Detector>Motion Detector |
photogate
picket fence
smart
pulley
motion
detector
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Unit IV – Free Particle Model, Inertia and
Interactions (design an experiment to verify NewtonÕs First Law) |
Photogates>Two Gate Timer This file is set up for studying velocities using two
photogates. Velocities are calculated assuming that the object blocking the
photogate has a length specified under Setup/Data Collection/Sampling. Photogates>Gate and Pulse Timer Two photogate acceleration measurement. Average block to
unblock velocities in each gate are determined, along with the midpoint time
for each gate block to unblock time interval. Photogates>Motion Timer Pckt Fnc-spl This file is for studying free fall with a photogate and a
Picket Fence. It does the simple calculations of 0.05 m/ delta t to get the
velocities. These are plotted vs the mid times of the intervals. If you need
to change the distance between bars on the Picket Fence, you need to change
the definition of the Velocity column. Motion Detector>Motion Detector |
two photogates
dynamics system
motion
detector
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Unit IV – Free Particle Model, Inertia and
Interactions (predict and verify various force interactions between
two objects for different kinds of motion) |
Force Sensors>Dual-Range>2 – 10N Dual Range Force Sensors>Dual-Range>2 – 50N Dual Range |
two force sensors
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Unit V – Constant Force Particle Model Atwood or Modified Atwood Machine Lab (acceleration vs total mass and net force)
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Photogates>Pulley This file is setup to collect data such as acceleration as
a Smart Pulley rotates. The distance traveled for each spoke of the Smart
Pulley is assumed to be 0.015 meters which is the proper distance if you are
using a string in the groove of the pulley. |
photogate
smart pulley |
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Unit V – Constant Force Particle Model Further investigations with forces and Newton's 2nd law may be done with the dynamics system. Friction can be added to the carts with a friction pad. A constant force may be applied to the cart with a cart fan.
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Depends on experiment being conducting. |
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Unit VI – 2-D Particle Models Projectile Motion (horizontal displacement vs horizontal velocity and
vertical drop height) |
Photogates>Daisy-Chained Photogates Use this file if you have several equally-spaced Vernier
Photogates connected to DIG/SONIC 1. To specify the separation between the
photogates, choose Set Up Sensors then LabPro: from the Experiment menu,
click on photogate icon in DIG/SONIC 1. Choose Set Distance or Length. |
two photogates |
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Unit VI – 2-D Particle Models |
Sample Movies>Basketball Shot>Basketball Shot This is a pre-done movie. With the camera, you can take your own movie to use in
this lab. |
Logitech QuickCam Pro 5000 |
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Unit VII – Energy (with less work) (change in its length vs force applied to a spring) |
Force Sensors>Dual-Range>10N Dual Range Force Sensors>Dual-Range>50N Dual Range |
force sensor |
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Unit VIII – Central Force Particle Model
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low g accelerometer
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Unit IX – Impulsive Force Particle Model Lab 18 - Momentum, Energy & Collisions |
Physics with Vernier>18 Momentum Energy |
dynamics system
2 motion
detectors
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Unit IX – Impulsive Force Particle Model |
Physics with Vernier>19 Impulse and Momentum |
dynamics system
motion
detector
force sensor
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Midterm Exam |
Voltage Probes>Differential Voltage Probe Current Probes>Current Probe |
voltage probe
current probe |
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Independent Studies & Investigations
(including final exam at Funtown USA) |
Depends on experiment being conducting. Here are some descriptions of the
sensors/equipment:
Microphone
can be used to display and study the waveforms of sounds from voices and
musical instruments. It is also great for speed of sound experiments. Light Sensor
approximates the human eye in spectral response and can be used over three
different illumination ranges, which you select with a switch. Use it for
inverse square law experiments or for studying polarizers, reflectivity, or
solar energy. Vernier Photogate may be used with a laser pointer as a laser gate when larger gate
openings are needed.
Wireless Dynamics Sensor System combines a 3-axis accelerometer, altimeter, and force sensor into one unit that communicates wirelessly with your computer using Bluetooth. Great for use at amusement parks and with the dynamics system (ramps and cart),
Data Vest makes hands-free data collection at an amusement park or playground easy. The vest has a front pouch for the LabPro, CBL 2, or Wireless Dynamics Sensor System.
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microphone
light sensor
photogate with
laser pointer
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Chemistry Experiments |
Depends on experiment being conducting. Here are some descriptions of the
sensors: Gas Pressure Sensor has enough resolution and range to work for all subject areas.
Chemistry teachers will find that it has enough range for Boyle's law
experiments (0 to 2.1 atm), yet provides greatly improved resolution for
vapor pressure or pressure-temperature experiments (0.40 mm Hg with LabPro).
The connection valve is now directly on the sensor box, significantly reducing
dead air space. For biology teachers, the package includes airtight tubing
clamps for transpiration experiments, as well as special fittings for
respiration experiments in small containers. The rugged and durable temperature probe has a sealed stainless steel shaft and tip
that can be used in organic liquids, salt solutions, acids, and bases. This
probe is the same as the probe shipped with CBL 2ª. Plug Go!Temp into
your Windows¨ or Macintosh¨ computer, start the free Logger Liteª software,
and click "Collect" to see the temperature graph plotted in real time! Conductivity Probe is great for environmental testing for salinity, total dissolved
solids (TDS), or conductivity in water samples. Biology teachers can use this
probe to demonstrate diffusion of ions through membranes or to monitor
changes in ion levels in aquatic systems. Chemistry students can use it to
investigate the difference between ionic and molecular compounds, strong and
weak acids, or ionic compounds that yield different ratios of ions. The
Conductivity Probe can monitor concentration or conductivity at three
different sensitivity settings. |
gas pressure sensor
temperature probe
Go-temp
conductivity probe |
