Magnetic Forces and Fields

Magnetic Forces and Fields

Assessment

Flashcard

Science

8th Grade

Practice Problem

Hard

Created by

Robin Gates-Turner

FREE Resource

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11 questions

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1.

FLASHCARD QUESTION

Front

Describe how the movement and force on electrons in the model produce a magnetic force.

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Back

The movement of electrons creates a magnetic field, and the force on them aligns with the field.

2.

FLASHCARD QUESTION

Front

Steps to determine which side of a bar magnet is north (N) or south (S).

Back

Place the bar magnet near the known pole of a second magnet and observe the interaction between the poles.

3.

FLASHCARD QUESTION

Front

Compare the fields produced in the space between each pair of magnets. Describe the pairs of magnets.

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Back

The magnets in pair A are oppositely magnetized and have more single electrons in their outer shells since they have a stronger magnetic moment and magnetic field.

4.

FLASHCARD QUESTION

Front

How could the student adjust the fields to cause the particle to have a greater acceleration within the gap and a wider turn through the dees?

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Back

Increasing the electric field and the magnetic field on the particle will cause the particle to have a greater acceleration and wider turn through the dees, since it will experience a stronger Lorentz force.

5.

FLASHCARD QUESTION

Front

What happens to the electric field as the charged particle moves from one dee to the other?

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Back

The electric field changes direction.

6.

FLASHCARD QUESTION

Front

What effect does changing the electric and magnetic fields have on a particle's acceleration and turn through the dees?

Back

Only C is correct.

7.

FLASHCARD QUESTION

Front

A beam of electrons is sent into the cyclotron. While the particle is moving through the magnetic field, the magnetic force on the particle is recorded. The particle's data are shown in the table. What is the strength and direction of the magnetic field on the particle?

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Back

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