In 1820, a scientist discovered that the points of a compass moved when he turned on a nearby electric circuit. What did this discovery show? (4.P.3.1)

Energy is changed from one form to another during an energy transfer. Which of the following examples describe the transfer of electrical energy into another form of energy? (4.P.3.1)

Which of the following items transfers electrical energy into light and heat energy? (4.P.3.1)

Which of the following items transfers electrical energy into sound energy?

Which of the following statements does not correctly describe energy? (4.P.3.1)

Why is sound a form of energy? (4.P.3.1)

Heat and magnetism are two forms of _____ because they can cause change or create motion. (4.P.3.1)