How many heaters can be safely operatedin the circuit?ĭ) Resistance isestablished across a circuit. The safety fuse in the circuit can handle 15 A of current. A provisional grade of IP (in progress) will be applied and later replaced with the final grade after completing part two of the series.
PHYSICS 101 EXAMS SERIES
This is part one of a year long series course. _ _ _8) An electric heater is rated at 300W when used in a 110-V circuit. Subject/Course Level: Physics/Undergraduate. _ _ _7) When we say an appliance “uses upelectricity,” we really are saying that:Ĭ) the powersupply voltage is substantially reduced.ĭ) electrons aretaken out of the circuit and put somewhere else.Į) electronkinetic energy is changed into some other kind of energy. _ _ _6) To say that an object iselectrically polarized is to say: _5) A“weightless” astronaut in an orbiting shuttle is:Ī) shielded from Earth’s gravitationalfield.Ĭ) pulled only by gravitation to the shuttlewhich cancels Earth’s gravitational pull.ĭ) like the shuttle, pulled by Earth’sgravitation and falling towards Earth.Į) in a situation where their centripetalforce is just canceled by their electrical force. If the masses of both planets aredoubled, and the distance between them is also doubled, then the force betweenthem is: _ _ _4) Considertwo planets in space that gravitationally attract each other. Late exams are not allowed, but in special cases, and with my permission, you may take an exam early. _3) Atorque acting on an object tends to produce: PHYSICS 101: General Physics Spring 2007 Schedule. _2) Ifyou use larger diameter tires on your car for a given RPM (angular speed) yourcar’s linear speed will be: Compared to anordinary Ferris wheel, where the seats are on the outside rim, your angularspeed while riding this Ferris wheel would be:ī) less and yourtangential speed the same.Ĭ) the same andyour tangential speed the same.ĭ) the same andyour tangential speed less.Į) more and your tangentialspeed the same.
_ _1) Suppose a certain carnival has aFerris wheel where the seats are located halfway between the center and theoutside rim.
PHYSICS 101Mid-term Exam 2 Practice Questions:
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