Magnetism And Electricity-Part 2: Question Preview (ID: 7823)


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A ______ uses motion to produce an electric current.
a) motor b) generator c) electric current d) compass
What kind of energy transformation happens in an electric motor?
a) Electrical to Mechanical b) Mechanical to Magnetic c) Magnetic to Electrical d) Heat to Mechanical
When generators are spun by turbines, they _____________.
a) produce solar energy b) store potential energy c) produce electricity d) burn fossil fuels
After Nita connected a copper wire from one terminal of a battery to the other, the wire became very hot. Why did the wire get hot?
a) The circuit was not complete, so the wire heated up. b) Air around the wire became electrified . c) Chemical energy produced vibrations that were changed to heat energy. d) Chemical energy produced electrical energy that was changed to heat energy
Batteries produce electricity from stored
a) kinetic energy b) mechanical energy c) solar energy d) chemical energy
What energy transformation takes place in a fan that is powered by batteries, when turned on?
a) electrical to chemical to mechanical b) mechanical to electrical to chemical c) chemical to electrical to mechanical d) electrical to mechanical to light
Which of the following best describes the energy transformation in a CD player?
a) electrical to kinetic mechanical to sound b) electrical to potential mechanical c) sound to electrical d) electrical to heat and light
Heat is transferred from one particle of matter to another without the movement of matter itself in a process called ________.
a) conduction b) convection c) radiation d) insulation
Heat is transferred by the movement of currents within a fluid, such as air or water, during ______
a) conduction b) convection c) radiation d) condensation
Energy from the Sun is transferred to Earth's surface by ____________.
a) radiation b) convection c) evaporation d) conduction
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