Magnetic Forces on Charged Particles Quiz

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Questions and Answers

What causes the Northern Lights?

  • The sun's magnetic field interacting with the Earth's atmosphere
  • Charged particles hitting the Earth's atmosphere (correct)
  • The ionization of the Earth's magnetic field
  • The Earth's magnetic field spiraling charged particles into the planet

How does a charged particle moving by a magnetic field behave?

  • It continues in the same direction with no change
  • It repels the magnetic field and moves away
  • It follows a straight path away from the magnetic field
  • It experiences a force and spirals into the planet (correct)

How does the magnetic field appear when it is coming towards you?

  • Concentric circles with a minus sign or dot inside
  • Concentric circles with a plus sign or x inside (correct)
  • A single circle with a point on the end
  • Concentric circles with the tail end of an arrow

What happens when a charged particle moves through space with no force or field acting on it?

<p>It continues in the same direction with no change (B)</p> Signup and view all the answers

How is dealing with a magnetic field in three dimensions different from two dimensions?

<p>It requires considering the direction of the field as well as its strength (C)</p> Signup and view all the answers

Flashcards

What causes the Northern Lights?

Charged particles from the sun interact with Earth's magnetic field, creating beautiful light displays in the sky.

How does a charged particle move in a magnetic field?

A charged particle moving near a magnetic field experiences a force that causes it to spiral along the field lines.

How do we represent a magnetic field coming towards us?

A magnetic field pointing towards you is represented by concentric circles with a plus sign in the center.

How does a charged particle move without any force?

A charged particle moving through space without any forces acting on it will continue in a straight line at constant speed.

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What makes dealing with magnetic fields in 3D different?

In three dimensions, you need to account for both the strength and direction of the magnetic field. It's like navigating with a compass.

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