Magnetsm I - SS3 Physics Past Questions and Answers - page 1
Which of the following is not a magnetic material?
Iron
Copper
Nickel
Cobalt
What is the term for the magnetic field created by an electric current?
Static magnetic field
Permanent magnetic field
Induced magnetic field
None of the above
Which of the following is a unit of magnetic field strength?
Coulomb
Ampere
Tesla
Volt
What is the relationship between magnetic field strength and distance from a magnet?
Magnetic field strength increases as distance increases
Magnetic field strength decreases as distance increases
Magnetic field strength is not affected by distance
None of the above
Which of the following is a property of magnetic field lines?
They always flow from north to south
They are always straight lines
They can never cross each other
None of the above
What is magnetism?
Magnetism is a fundamental property of matter that results from the movement of electric charges. It is a force that can attract or repel certain materials, such as iron, nickel, and cobalt.
What role has magnetism played in science and technology?
The study of magnetism has many practical applications. Magnetic materials are used in a variety of devices, from electric motors and generators to computer hard drives and credit card strips. Magnetic fields are also used in medical imaging technologies, such as magnetic resonance imaging (MRI).
A charged particle moving in a magnetic field will experience a force that is:
parallel to the magnetic field
perpendicular to the magnetic field
in the same direction as the magnetic field
opposite to the magnetic field
The strength of a magnetic field is measured in:
Watts
Ohms
Coulombs
Teslas
Which of the following is true about the direction of magnetic field lines?
They always point from north to south
They always point from south to north
They always form circles around a magnet
They always form straight lines between the north and south poles