Conceptual Physics Practice Test Questions and Answers

Conceptual Physics Practice Test Questions and Answers Speed - Answer-How fast an object moves; the distance traveled per unit of time. Instantaneous speed - Answer-The speed at any instant. Average speed - Answer-The total distance traveled divided by the time of travel. Velocity - Answer-An object's speed and direction of motion. Vector quantity - Answer-A quantity that has both magnitude and direction. Scalar quantity - Answer-A quantity that has only a magnitude, not a direction. Acceleration - Answer-The rate at which velocity changes with time; the change in velocity may be in magnitude, or direction, or both. Free fall - Answer-Motion under the influence of gravity only. Force - Answer-Any push or pull exerted on an object, measured in newtons (or pounds in the British system). Friction - Answer-The resistive force that opposes the motion or attempted motion of an object either past another object with which it is in contact or through a fluid.