ELECTRICITY AND MAGNETISM

What basic principle enables ALL electric motors to operate?

• Iron is the only element that is magnetic

• Opposite electric charges attract and like charges repel.

• A moving conductor within a magnetic field will experience an electromotive force.

• A current-carrying conductor placed within a magnetic field will experience a magnetic force.

What transformation will take place in an improvised generator?

• mechanical energy into electrical energy

• electrical energy into mechanical energy

• alternating current into direct current

• direct current into alternating current

Which of the following transfer of electricity will be observed in a motor?

• electrical to mechanical

• physical to potential

• mechanical to electrical

• chemical to mechanical

How is transfer of electricity in a generator characterized?

• Electrical to Mechanical

• Physical to Potential

• Chemical to Light

• Mechanical to Electrical

Which of the following materials will facilitate you making an electric motor?

• Battery, pencil and wire

• Battery, nail and string

• Wire, battery and iron ore (nail)

• String, battery, rubber strip

In large generators in power plants, ___________ rotate inside a coil of wire to produce an electric current.

• Water

• Wind

• Magnets

• Circuits

Which device uses mechanical energy to produce electrical energy?

• Solar Cell

• Generator

• Magnet

• Electric Motor

Which of the terms below turns the magnet inside a generator when mechanical input is supplied?

• Electromagnet

• Solar panel

• Turbine

• Pinstock

What energy do you put IN to a generator?

• Mechanical

• Thermal

• Electrical

• Potential

What type of energy comes OUT of a generator?

• Mechanical

• Thermal

• Electrical

• Potential