Hans christian ørsted observed that when a current-carrying wire was brought near a compass, the compass needle moved.
in ørsted’s observation, the current-carrying wire acted like a (generator magnet motor) . michael faraday based his first invention, the ( electromagnet generator motor) , on ørsted s observation.

Apossible explanation for a set of facts that can be tested by further investigation is called

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.

When a bicycle coasts uphill, it moves slower and slower as it climbs. why? a. its kinetic energy is transforming into heat energy. b. its potential energy is transforming into kinetic energy. c. its kinetic energy is transforming into potential energy and heat energy. d. its potential energy is transforming into kinetic energy and heat energy.