tailieunhanh - SAT II Physics (Gary Graff) Episode 2 Part 6

Tham khảo tài liệu 'sat ii physics (gary graff) episode 2 part 6', ngoại ngữ, ngữ pháp tiếng anh phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | PHYSICS ItSI PHYSICS TEST Continued 61. The most notable difference between a radio wave and a light wave is A speed. B refractive index. C reflectivity. D amplitude. E frequency. Force 62. Which of the graphs above shows two electrons as they separate from one another A Graph A B Graph B C Graph C D Graph D E Graph E 63. During a pool game the cue ball is shot at the red ball. When the cue ball strikes the red ball the cue ball stops dead and the red ball moves away at the same velocity the cue ball had before the collision. The type of collision represented in this example is A an elastic collision. B a perfectly inelastic collision. C an inelastic collision. D all of the above. E none of the above. 64. The images formed by convex mirrors A are always real. B are always virtual. C are only real when the object is placed outside the radius of curvature. D are only virtual when the object is placed inside the focal point. E None of the above describes the images formed by convex mirrors. 65. Two different light bulbs are in a DC circuit powered by an 18 V battery as its power source. The two bulbs are rated at watts B1 and watts B2 each. What are the resistances of the two light bulbs B1 and B2 A B1 is 48 Q and B2 is 72 Q. B B1 is 72 Q and b2 is 48 Q. C B1 is Q and B2 is 4 Q. D B1 is 4 Q and B2 is Q. E B1 is Q and B2 is Q. 66. Scientists can determine whether a star is approaching the earth by looking at its A red shift. B blue shift. C rate of shimmer. D brightness. E absolute magnitude. Peterson s SATIISuccess Physics PRACTICE ItSI 3 PHYSICS TEST Continued 67. The volt is a measure of electrical potential and may be defined as A opposition to electrical motion. B number of particles in motion. C work per unit charge. D field strength per unit of force. E electrostatic discharge. 68. A laboratory centrifuge starts from rest and reaches a rotational speed of 8 000 radi-ans sec in a time of 25 seconds. What is the angular acceleration