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Within a pendulum, as potential energy decreases, energy increases. a. heat b. kinetic c. frictional d. gravitational

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

I'm thinking it's 2 you are asked to explain the earth's magnetic field. which is the best reply? 1. the earth's magnetic south is similar to the north pole of a magnet. 2. the earth's core has a strong magnetic charge similar to the south pole of a magnet. 3. the earth's geomagnetic south is similar to the south pole of a magnet. 4. the earth's magnetic charge is not centered at either pole; it varies based on location.