Physics1401 - Study guides, Class notes & Summaries

HESI Physics Questions with Answers and Explanations 1. When a junked car is compacted, which statement is true? A. Its mass increases. B. Its mass decreases. C. Its density increases. D. Its density decreases. Explanation: Since density = mass/volume, it should be obvious that the decrease in volume as a car is crushed should lead to an increase in density. Nothing happens to change the mass of the car. 2. A car travels 3 miles north, 6 miles south, 2 miles east, 2 miles west, and then...

Work done by a constant force kinetic energy and the work-energy theorem, work done by a variable force. Conservative and nonconservative forces potential energy, conservation of Mechanical energy. Linear momentum, second law, impulse, conservation and linear momentum, inelastic collision, elastic collisions. angular position, velocity and acceleration rotational kinematics. connections between linear and rotational kinetic enery and moment of inertia.