Conceptual Physics Midterm Exam Prep Questions with Correct Answers

Conceptual Physics Midterm Exam Prep Questions with Correct Answers The newton is a unit of a. force b. mass c. inertia d. density - Answer-a. force If an object's mass is decreasing while a constant force is applied to the object, the acceleration a. remains the same. b. decreases. c. increases. - Answer-c. increases. Two billiard balls having the same mass and speed roll toward each other. What is their combined momentum after they meet? a. 0 b. half the sum of their original momentums c. twice the sum of their original momentums d. impossible to determine without additional information - Answer-a. 0 An object is propelled along a straight-line path by a force. If the net force were doubled, the object's acceleration would be a. half as much. b. four times as much. c. twice as much. d. the same. e. none of these - Answer-c. twice as much. A ball tossed vertically upward rises, reaches its highest point, and the falls back to its starting point. During this time the acceleration would be a. half as much. b. four times as much. c. twice as much. d. the same. e. none of these. - Answer-b. four times as much. Which has the greater mass? a. an automobile battery b. a king-size pillow c. neither - both have the same - Answer-a. automobile battery While a car travel around a circular track at a constant speed, its a. inertia is zero b. acceleration is zero. c. velocity is zero. d. none of the above. - Answer-d. none of the above.