According to Kepler, the speed of a planet is slowest when it is  

Newton discovered  

A vertically-held sledge hammer is easier to balance when the heavier end is (think about its rotational inertia)  

The current produced by voltage in a circuit is impeded by  

Compressions and rarefactions are characteristics of  

If the Sun were twice as massive (Recall Newton’s 3rd Law!)  

Which is most responsible for Earth’s ocean tides?  

An Earth satellite is simply a projectile  

Reports are that singer Caruso was able to shatter a crystal chandelier with his voice, which illustrates  

The approximate range of human hearing is