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Semester Review Energy Waves/ Momentum Electrostatics A/Q/N Famous Dead Guys $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $300 $300 $300 $300 $300 $400 $400 $400 $400 $400 $500 $500 $500 $500 $500 Energy On a trampoline where does a person have the greatest Kinetic Energy Answer After they go up in the air on their way down right before they hit again Back to Jeopardy Energy On a trampoline where does a person have their Greatest Potential Energy Answer At the top of their flight Back to Jeopardy Energy A 500 kg car moving at 5 m/s runs into a concrete wall. It takes 1.0 second for the truck to Completely stop. What is the magnitude of force Exerted on the truck during the collision? Answer 2500 N Back to Jeopardy Energy A 0.500 kg softball is traveling at 40 m/s. How much Kinetic Energy does the softball have? Answer 400 J Back to Jeopardy Energy A person is hanging from a bungee chord off a bridge. Name the two types of potential energy Answer Elastic Potential Gravitational Potential Back to Jeopardy Waves A 2.5 x 10^9 Hz microwave has a wavelength of what? Answer 0.12 m Back to Jeopardy Waves If a light ray strikes a mirror at a 45° angle with the normal, what angle will it reflect at with the normal? What is the total angle formed? Answer Reflects at 45° Total Angle 90° Back to Jeopardy Momentum If an object A is at rest and is struck by object B and a perfectly elastic collision occurs, what is the speed of Object B after the collision Answer 0 m/s it will stay at rest Back to Jeopardy Momentum If two objects collide, what happens to the momentum Answer Conserved For every action there is an equal but opposite reaction Back to Jeopardy Waves If a siren is traveling away from you, What do you hear Answer The noise will reduce below the normal pitch because of the Doppler effect Back to Jeopardy Electric The formula for Coulomb’s Law is. . . Answer 2 Felectric=(kq1q2)/d Back to Jeopardy Electric In a series circuit this Is equal throughout Answer current Back to Jeopardy Electrostatics The electron and proton of a hydrogen atom are separated, on average, by a distance of about 5.3 x 10-11m. Find the magnitudes of the electric force. Proton charge 1.60 x 10-19C Electron charge -1.60 x 10-19C Answer Felectric = 8.2 x -8 10 N Back to Jeopardy Electrostatics Draw the Electric Field lines of a positive charge and a negative charge + Answer Back to Jeopardy Electric If you have a current of 5 amps across a 25 ohm resistor, what is the total voltage? Answer 125 V Back to Jeopardy A/Q/N What did Rutherfords model involve Answer Alpha particles and gold foil Back to Jeopardy A/Q/N Light acts as both a wave and a particle is the Answer Dual Nature of Light Back to Jeopardy A/Q/N Light bouncing on metal reflects Electrons is Answer Photoelectric effect Back to Jeopardy A/Q/N Young’s Double Split Experiment relies on Answer Interference of Light Back to Jeopardy A/Q/N What cannot penetrate through the skin Answer Alpha Particles Back to Jeopardy Famous Dead Guys Supported idea of 2 types of charges. Invented the Lightning Rod Answer Ben Franklin Back to Jeopardy Famous Dead Guys His oil drop experiment proved 1.60 x 10-19 C the charge of the electron. He applied Coulomb’s Law to measure the charge Answer Robert Millikan Back to Jeopardy Famous Dead Guys Performed the Gold Foil experiment which established the planetary model of an atom that has electrons orbiting around a heavy, positively charged nucleus, which disproved the “plum pudding” model. He utilized alpha particles and gold foil. Answer Ernest Rutherford Back to Jeopardy Famous Dead Guys Measured the speed of 8 light, 3.00 x 10 m/s Answer Albert Michelson Back to Jeopardy Famous Dead Guys Formulated the law of magnetic induction quantitatively. Developed the theory of induction. Induced electric currents are explained with his laws. Answer Michael Faraday Back to Jeopardy