Magnetism Quiz (10 Questions)

What is a magnetic field?

• A magnetic field is a region in space where gravity can be detected.

• A magnetic field is a region in space where electric charge can be detected.

• A magnetic field is a region in space where a magnetic force can be detected.

• A magnetic field is a region in space where sound waves can be detected.

What is the SI unit of magnetic field?

• Ohm (Ω)

• Ampere (A)

• Tesla (T)

• Joule (J)

How is the direction of a magnetic field represented?

• By magnetic particles

• By lines of force called magnetic field lines.

• By magnetic waves

• By magnetic rays

What is the formula to calculate the magnetic force on a moving charge?

• F = qvBcosθ + qvBsinθ

• F = qvBcosθ

• F = qvBtanθ

• F = qvBsinθ

What is the direction of the magnetic force on a positive charge moving in a magnetic field?

• Perpendicular

• Parallel

• Opposite

• Diagonal

What are some examples of magnetic materials?

• iron, nickel, cobalt, alloys

• steel, copper, aluminum

• wood, plastic, glass

• gold, silver, platinum

What happens when two magnetic poles of the same type are brought close to each other?

• They repel each other.

• They attract each other.

• They create a magnetic field.

• They become neutral.

What happens when two magnetic poles of opposite types are brought close to each other?

• They repel each other.

• They attract each other.

• They create a magnetic field.

• They cancel each other out.

What is the difference between a magnetic pole and a magnetic field?

• A magnetic pole refers to the ends of a magnet, while a magnetic field is the region around a magnet where its magnetic force can be detected.

• A magnetic pole is a force exerted by a magnet, while a magnetic field is the strength of the magnet.

• A magnetic pole is a region around a magnet where its magnetic force can be detected, while a magnetic field refers to the ends of a magnet.

• A magnetic pole is the strength of a magnet, while a magnetic field is the force exerted by the magnet.

What is the relationship between the strength of a magnetic field and the distance from the magnet?

• Inverse relationship

• Exponential relationship

• No relationship

• Direct relationship