PHYS201 Midterm: study guide for exam 2
2 Nov 2016
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Forces are what cause any change in the velocity of an object. A force is that which causes an acceleration. Field forces: act through empty space, no physical contact is required. Strong force: between subatomic particles (quarks, gluons) A spring can be used to calibrate the magnitude of a force. Doubling the force causes double the reading on the spring. When both forces are applied, the reading is three times the initial reading. Measures the difficulty in accelerating an object. Independent of the method used to measure it. The resistance of any physical object to any change in its state of motion, including changes to its speed and direction. It is the tendency of objects to keep moving in a straight line at constant velocity it"s a propert(cid:455) of all (cid:373)atter to resist (cid:272)ha(cid:374)ges it (cid:373)otio(cid:374) An object at rest remains at rest as long as no net force acts on it.
