(人教版)高一物理必修2第五章曲线运动测试题(国外英文资料).doc

(人教版)高一物理必修2第五章曲线运动测试题(国外英文资料) Xian Yifan education and counseling center Xian Yifan education and counseling center, Xian Yifan education and counseling center Xian Yifan education and counseling center (( (peoples Education Edition) PEP Edition PEP Edition) )) High school physics required High physics, high requirement, physics required Senior physics required 2 Twenty-two 2, fifth chapters The fifth chapter and the fifth chapter The fifth chapter curve motion test Curve motion; test curve; motion test Curvilinear motion test Questions topic First, fill in the blanks (indefinite choice) 1., about the synthesis and decomposition of motion, the following statement is correct A. hi speed is equal to the size of the size and speed of movement The two movement if the linear motion of B. objects, its motion must be linear motion C. motion and motion with time If the motion is D. curve movement, is moving at least one motion curve One Eleven One . Analytic Analytic solution Analysis: :: That is due to the speed vector, synthesis and decomposition according to the parallelogram rule, A error is linear motion. Options Motion or curvilinear motion is related to the nature of the motion of the two points, if the motion of the two points is proportional to the acceleration of the two motion The speed is not in a straight line, the object motion is motion curve, option B and D error. Motion and motion It is the basic nature of isochronicity, motion synthesis and decomposition, the option C is correct. [answer]: C 2. tie a small ball with a thread, and pull the other end with the hand so that the ball can move at a constant speed in the horizontal plane. The length of the rope is L, The speed of the ball is hunger, if the length of the rope is shortened to L/4, the speed of the ball becomes 4V, and the centripetal force of the ball is original Come A.1 times, B.0.25 times, C.16 times, D.64 times Two Twenty-two Two . Analytic Analytic solution Analysis: according to the formula