ELECTROMAGNETS AND ELECTROMAGNETISM

In sprinkling iron filing over a paper placed above a magnet, which among the following will be made visible?

• Magnet

• Magnetic Field

• Electric Current

• Electric Field

Tags

NGSS.MS-PS2-5

A compass needle responds to a magnetic field, because the compass needle is a __________________.

• Generator

• Motor

• Magnet

• Transformer

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which of the following is a type of magnet that is created by passing a current through a coil of wire?

• Electromagnet

• Permanent Magnet

• Ferromagnet

• Magnet

Electric field lines are used to visualize the magnetic field. These lines are continuous loops that emerge from the north pole and enter the south pole of a magnet, forming closed loops.

• True

• False

Tags

NGSS.HS-PS2-5

Changing magnetic fields can induce electric currents (as per Faraday's law of electromagnetic induction) and vice versa (as per Ampère's law). A moving electric charge creates a magnetic field, and a changing magnetic field induces an electric field.

• True

• False

Tags

NGSS.HS-PS2-5

Changes in electric and magnetic fields propagate through space as a kind of wave. These waves carry energy and include radio waves, microwaves, infrared, visible light, ultraviolet light, X-rays, and gamma rays.

• magnetic wave

• electric wave

• electromagnetic wave

• seismic wave

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NGSS.MS-PS4-1

NGSS.MS-PS4-2

When a magnetic field changes around a conductor, it induces an electric current in the conductor. What do we call this phenomenon?

• Electromagnetic Field Generation

• Quantization

• Magnetic Pole Interaction

• Electromagnetic Field Induction

Tags

NGSS.HS-PS2-5

When Earth's magnetic field interacts with charged particles from the solar wind, funneling them towards the poles, these particles collide and form a majestic display of lights. What do we call this type of light display?

• Aurora Borealis

• Magnetic Light

• Polar Light

• Magnetic Light

Unlike permanent magnets, electromagnets can be turned on and off by controlling the flow of electric current. What do we call this property of electromagnets?

• Adjustability

• Controllability

• Series

• Manipulation

Tags

NGSS.MS-PS2-3

Electromagnets find applications in a wide range of fields, including industry, research, transportation, medicine, and telecommunications. What do we generally call this property of electromagnet?

• Adjustability

• Controllability

• Versatility

• Efficiency