Physics Exam Questions with Correct Answers

Force - ANSWER-Energy used to push or pull an object Newton - ANSWER-Unit of measurement of force Friction - ANSWER-The force exerted on an object when it is in contact with another object as it moves or tries to move Weight - ANSWER-The force of gravity on an object Mass - ANSWER-The amount of matter in an object Gravity - ANSWER-A force between two objects Work - ANSWER-When an object is moved in the same direction as the force is applied Newton Meter - ANSWER-Unit of measurement for work (NM) Joules - ANSWER-Unit of measurement for work (J) Input Force - ANSWER-Force you exert on the machine Output Force - ANSWER-the force the machine exerts on an object Mechanical Advantage - ANSWER-the number of times a machine increases a force exerted on it Simple Machine - ANSWER-A machine is a device that allows you to do work in a way that is easier or more effective. (Force, Distance and Direction) Lever - ANSWER-A rigid bar that is free to pivot, or rotate on a fixed point called a fulcrum Advantage changes: Force Distance Direction Can only get one advantage at a time depending on how you use the lever Inclined Plane - ANSWER-A flat, sloped surface Advantage: Force Disadvantage: Distance