Which of the following simple machines is designed primarily to redirect a force rather than reduce the effort required to move a load? Lever
Wedge
Inclined Plane
Wheel and Axle

This is the substance(s) formed in a chemical reaction.

What is the increase in density of a medium due to wave travel?

The horizontal blue line through the middle of the lens is called the optical axis. as the lamp is moved above or below the axis, keeping the horizontal distance to the center of the lens constant, how does the horizontal distance from the lens to the image change?