Electronics Robotics Final Review 1 (Semester 2) Question Preview (ID: 47332)


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Magnetic materials are known as:
a) Solid materials
b) Heavy materials
c) Ferrous materials
d) Electromagnetic materials

Which of these metals is magnetic?
a) Gold
b) Silver
c) Mild Steel
d) Aluminium

Which of these is NOT required to make an electromagnet?
a) Source of current
b) Iron Core
c) bar magnet
d) Wire Coil

Which of these is NOT a factor that effects electromagnet strength?
a) Temperature of the room
b) Number of coils
c) Amount of current
d) Type of material used for core

Ferrous metals have large amounts of_______
a) Copper
b) Iron
c) Amps
d) Aluminium

What would happen to the magnetic field of a magnet if another magnet was introduced?
a) The magnetic field would increase
b) The magnetic fields would cancel each other out
c) The magnetic field would decrease
d) Nothing would change

What is the effect of switching the polarity in an electromagnet?
a) Increased magnetism
b) Decreased Magnetism
c) There would be no effect
d) The North and South poles would switch

Which of these items does not require a temporary magnet?
a) Maglev Train
b) DC Motor
c) Toaster
d) Fridge Magnet

What is Magnetic Induction?
a) The process of a magnetic becoming non-magnetic
b) The process of a magnetic material becoming magnetized
c) The process of turning aluminum into steel
d) The process of doubling the power of a magnet

Which of these is not a type of magnet?
a) Electromagnet
b) Permanent Magnet
c) Cast Iron
d) Bar Magnet

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