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Physics I Lab Manual 2011 39

Physics I Lab Manual 2011 39 - 3 If the data logger is not...

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EXPERIMENT 4. NEWTON’S LAWS 4. What is the gravitational mass of the test object? Procedure First we will test the statement from Newton’s first law that an object at rest will stay at rest unless acted on by a net force. 1. Choose a mass between 100g and 500 g and place it on the table so that it is stationary with no net force acting on it. 2. Observe the motion (or lack thereof) of the object. 3. Repeat several times Now we will investigate Newton’s 2 nd law 1. Use vernier calipers to measure r , the radius of the pulley on the rotation sensor which the cord will pass over. 2. Make sure the LabQuest data logger is turned on, the digital rotation sensor and the force sensor are plugged in and the unit is reading an angle and force.
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Unformatted text preview: 3. If the data logger is not reading a force it may need to be configured to use the force sensor: From the tab, select “Sensor setup ... ” choose “Force” for whichever channel the sensor is plugged into and then from the submenu select “Dual Range Force 10N” and click “OK”. 4. With nothing connected to the hook of the force sensor, hold it horizontally (with the hook on the side) and observe the measured force on the handheld data logger. If the force is not zero it needs to be calibrated using the following step. 5. Calibrate your force sensor. While holding the sensor horizontally (with the hook on the side), go to the tab, select Sensor → Zero → Dual Range Force ± 10 N . 29...
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