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4QPHYS2LQReviewer

Reviewer for 4th quarter Long Quiz 1 in Physics 2

QuestionAnswer
These stones that have been made magnetic by natural means, were the first known magnets and were discovered by the ancient Greeks and ancient Chinese. Lodestones
What do you call the three particles in which all mater is made of? Protons, neutrons and electrons.
What do you call the magnetic field produced when electrons move around the nucleus? Magnetic moment or Magnetic Dipole Moment (μ)
Which direction do the magnetic moment points from which the orbiting electron is like a magnet? from its south magnetic pole to its north magnetic pole.
These materials are those in which the individual magnetic moments respond to an external magnetic field. Magnetic Materials
The magnetic moment is _____________ to the orbital plane. (indicate direction e.g. parallel) perpendicular
The orbital motion can be visually represented using a right-hand-rule in which the fingers curl in the direction of the ____________. Current
The orbital motion can be visually represented using a right-hand-rule in which the thumb represents the direction of the _____________. magnetic moment
Apart from its orbital motion, electrons also have an inherent magnetic moment associated with its property called _________. This property of the paired electrons tends to cancel out each other. spin
In general, the magnetic moment of individual atoms are randomly oriented giving the material a ________ net magnetic moment. (Hint: How much?) zero 0.00
Enumerate the three types/classes in which magnetic materials respond to the external magnetic field. ferromagnetic, paramagnetic, and diamagnetic;
Materials which strongly interact with the external magnetic field are classified as? ferromagnetic materials.
It is a microscopic region within which the magnetic moments of individual atoms are aligned. Neighboring atoms are strongly coupled forming what is referred here. magnetic domain
Materials that have a slight attraction to a magnetic field are classified as? paramagnetic materials.
Materials that have slight repulsion to a magnetic field are classified as? diamagnetic materials.
What is the type/class of these materials: cobalt, iron, and nickel ? Ferromagnetic materials
What is the type/class of these materials: magnesium, molybdenum, and lithium ? Paramagnetic materials
What is the type/class of these materials: copper, gold, and silver ? Diamagnetic materials
TRUE or FALSE The strength of the magnetic force on a moving charge depends on the direction the force was applied. FALSE
TRUE or FALSE The strength of the magnetic force on a moving charge depends on the amount of charge, q. TRUE
TRUE or FALSE The strength of the magnetic force on a moving charge depends on the speed of the moving charge, v. TRUE
TRUE or FALSE The strength of the magnetic force on a moving charge depends on the strength of magnetic field, B. TRUE
TRUE or FALSE The strength of the magnetic force on a moving charge depends on the angle between the velocity and magnetic field vectors. TRUE
TRUE or FALSE The strength of the magnetic force on a moving charge depends on the right hand rule as a tool. FALSE
The magnetic force is mathematically expressed as: F = |qvB| sinθ
It is a tool used to determine the direction of the magnetic force on a moving charge. Right Hand Rule (RHR)
TRUE or FALSE The magnetic force on a moving charge has the following key characteristics: Its magnitude F is not proportional to the amount of charge q. FALSE [It is proportional]
TRUE or FALSE The magnetic force on a moving charge has the following key characteristics: The magnitude of the force F is also proportional to the strength of the magnetic field B. TRUE
TRUE or FALSE The magnetic force on a moving charge has the following key characteristics: The magnetic force does not depend on the particle’s velocity v. FALSE [It does depend]
TRUE or FALSE The magnetic force on a moving charge has the following key characteristics: There is no magnetic force if the charge is moving parallel to the magnetic field. TRUE
TRUE or FALSE The magnetic force on a moving charge has the following key characteristics: The force is minimum when the charge is moving perpendicular to the field FALSE [the force is maximum]
TRUE or FALSE A charged particle at rest experiences no magnetic force. TRUE
The electric force does not depend on the particle's velocity; it is the same whether the charge is moving or not. TRUE
TRUE or FALSE F = |qvB| sinθ where θ is the angle between the velocity and the electrical field FALSE [magnetic field]
TRUE or FALSE F = |qvB| sinθ The magnitude of the force is maximum when v and B are perpendicular. (sin90*) TRUE
TRUE or FALSE The magnetic force does have the same direction as the magnetic field but instead is always parallel to both the magnetic field and the velocity of the charge. FALSE [*does not have the same direction] [*is always perpendicular]
TRUE or FALSE The magnitude of the force is proportional to the component of the velocity perpendicular to the field (vsinθ). TRUE
The magnetic force can be expressed in the form of a cross or vector product: [Hint: Indicate the formula] F = qv x B
F = qv x B The direction of the resulting vector F is in what direction to both given vectors, or to the plane containing both v and B vectors ? Perpendicular
In the second for of the RHR, the right hand is oriented in such a way that the thumb points in the direction of the ________. velocity vector
In the second for of the RHR, the right hand is oriented in such a way that the middle finger, perpendicular to the palm, points in the direction of the _________ on a positive moving charge. magnetic force
In the second for of the RHR, the right hand is oriented in such a way that the index finger in the direction of the _________. magnetic field
Created by: Aeon
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