Magnetic force on a moving charge and on a wire

Grade 11 Science Worksheet - Building Confidence

NameDate

Circle the best answer, or write your answer on the line.

  1. A 2 μC charged bead moves at 400 m/s at right angles to a 0.6 T field. What force acts on it, to 0.01 mN, Ari?

  2. A 5 μC charged bead moves at 300 m/s at right angles to a 0.3 T field. What force acts on it, to 0.01 mN, Bo?

  3. A 1.5 μC charged bead moves at 800 m/s at right angles to a 0.5 T field. What force acts on it, to 0.01 mN, Kira?

  4. In the diagram, which way is the force on the positive charge, Jun?

    • To the right, along its motion
    • Down the page
    • Up the page
  5. In the diagram, which way is the force on the positive charge, Luz?

    • Down the page
    • Out of the page, along the field
    • Up the page
  6. “example data” In the diagram, which way is the force on the positive charge, Milo?

    • Up the page, along its motion
    • To the right
    • To the left
  7. At what angle between the motion and the field is the magnetic force greatest, Pia?

    • 45°
    • 0°
    • 90°
  8. A charged bead sits at rest in a magnetic field. What magnetic force acts on it, Ren?

    • Zero, since it is not moving
    • qB, pointing along the field
    • A force that starts it moving along the field
  9. In the diagram, which way is the force on the wire, Tala?

    • Up the page
    • To the right, along the current
    • Down the page
  10. In the diagram, which way is the force on the wire, Esme?

    • To the left, along the current
    • Down the page
    • Up the page
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Magnetic force on a moving charge and on a wire

Answer Key - Grade 11 Science Worksheet - Building Confidence

Circle the best answer, or write your answer on the line.

  1. A 2 μC charged bead moves at 400 m/s at right angles to a 0.6 T field. What force acts on it, to 0.01 mN, Ari?

    0.48 mN
  2. A 5 μC charged bead moves at 300 m/s at right angles to a 0.3 T field. What force acts on it, to 0.01 mN, Bo?

    0.45 mN
  3. A 1.5 μC charged bead moves at 800 m/s at right angles to a 0.5 T field. What force acts on it, to 0.01 mN, Kira?

    0.6 mN
  4. In the diagram, which way is the force on the positive charge, Jun?

    • To the right, along its motion
    • Down the page
    • Up the page
  5. In the diagram, which way is the force on the positive charge, Luz?

    • Down the page
    • Out of the page, along the field
    • Up the page
  6. “example data” In the diagram, which way is the force on the positive charge, Milo?

    • Up the page, along its motion
    • To the right
    • To the left
  7. At what angle between the motion and the field is the magnetic force greatest, Pia?

    • 45°
    • 0°
    • 90°
  8. A charged bead sits at rest in a magnetic field. What magnetic force acts on it, Ren?

    • Zero, since it is not moving
    • qB, pointing along the field
    • A force that starts it moving along the field
  9. In the diagram, which way is the force on the wire, Tala?

    • Up the page
    • To the right, along the current
    • Down the page
  10. In the diagram, which way is the force on the wire, Esme?

    • To the left, along the current
    • Down the page
    • Up the page