What are the differences between refraction and diffraction?

An experiment is designed to test the relationship between the initial height of a basketball before it is dropped to the height of its rebound bounce. the height of the rebound bounce is measured using a scale positioned behind the ball. in the above experiment, which condition would not be controlled? a). the starting height of the ballb). the surface the ball bounces on c). the type of ball d). the method to measure the rebound height of the ball

Which units can be used to measure length or distance? check all that apply. gram meter kilometer liter inch

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form