You grab a hot cookie sheet out of the oven this is an example of energy transfer.

A. Radiation-transfer of energy (heat) through space by electromagnetic rays.

B. Conduction-The transfer of heat through the matter by molecular energy (touch)

C. Convection-The transfer of heat by the movement of mass or substance (motion)

Which of the following describes something an engineer would probably do first when developing new technology meant to reduce ocean pollution? o a. evaluate the benefits and challenges of using certain chemicals to purify water. o b. research new scientific findings in regard to ocean cleanup. o c. identify the need to reduce ocean pollution. o d. research what has been done in the past to clean up oceanic oil residue.

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

Hey student studies gravity using objects that have the same mass which two objects have the greatest gravitational force acting between them a. 100kg 1.0m 100kg b. 100kg 2.0m 100kg c. 100kg 2.0m 100kg big d. 100kg big 3.0m 100kg big