Unit 6 - Magnetism and Electromagnetism

Which of the following is a non-magnetic material?

• Glass

• Iron

• Steel

• Nickel

What does an electromagnet consist of?

• Coil of wire around a magnetically soft core

• Permanent magnet

• Non-magnetic material

• Magnetically hard core

What does Fleming’s left-hand rule show?

• Relative direction of force, field, and current

• Direction of magnetic field

• Magnitude of magnetic force

• Type of magnetic material

What is the characteristic of a uniform magnetic field between two magnets?

• Parallel and evenly spaced lines

• Randomly spaced lines

• Curved lines

• Intersecting lines

Which of the following is a magnetic material?

• Nickel

• Glass

• Plastic

• Wood

What does the magnitude of the force in a magnetic field depend on?

• How close together the magnetic field lines are

• The color of the magnet

• The size of the magnet

• The temperature of the environment

What happens to the domains in a material when an external magnetic field is applied?

• Align with the field

• Scatter randomly

• Disappear

• Change color

What is the direction of the magnetic field produced by a current-carrying wire shown by?

• Right-hand grip rule

• Left-hand rule

• Fleming’s right-hand rule

• Newton’s third law

What is the effect of a force on a current-carrying conductor in a magnetic field?

• Acts on the conductor

• Destroys the conductor

• Repels the conductor

• Attracts the conductor

What is the role of the right-hand grip rule?

• Determines the direction of the magnetic field

• Measures the strength of the magnetic field

• Calculates the force on the conductor

• Identifies the type of material