Unit 1 Introduction to Physics Exam Questions with Complete Solutions

Science - ANSWER-The use of knowledge in a organized and classified manner. Natural Science - ANSWER-The study of the universe and its contents. Velocity - ANSWER-Speed Rate of change of position of an object over time Inertia - ANSWER-Property of matter that resists its change in motion. Tendency of a resting body to remain at rest and the tendency of a body moving at a constant speed in a straight line to continue its states of motion. Force - ANSWER-Push or pull of an object. Newton (N) is the SI unit of force. Mass - ANSWER-Quantity of matter. Measure of Inertia. Physical Science - ANSWER-The study of nonliving matter Physics - ANSWER-The branch of physcical science that studies matter and energy and their relationships. Biological Science - ANSWER-The study of living matter Scientific Method - ANSWER-Comprises the systematic collection of facts, the study of their interrelationships, and the drawing of valid conclusions from the resulting data. Law of Inertia (1st Law) - ANSWER-A body will remain at rest or if in motion will continue moving at a constant velocity in a straight line unless acted upon by an external force Law of Force (2nd Law) - ANSWER-The force acting on a body is proportional to its mass times acceleration; the direction of the force is the same as that of the body's acceleration. F=ma - ANSWER-Newton's Law of Force equation. F=Force M=mass A=acceleration