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12.119 Magnetic Force on Moving Charges Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Physics Science worksheet provides structured practice on 12.119 Magnetic Force on Moving Charges. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Magnetic Force on Moving Charges: Determine the direction or magnitude of magnetic force on charges moving through magnetic fields. Aligned to NGSS, CCSS Literacy and Mathematics, AP Physics, and selected state frameworks 12.119 - Magnetic Force on Moving Charges: NGSS HS-PS2-4, HS-PS2-5, HS-PS3-2, HS-PS3-3, HS-PS3-5, HS-PS4-5; CCSS HSN-Q.A, HSA-CED.A, HSF-IF, HSG-MG; AP Physics 2 E&M units; AP Physics C: E&M enrichment; TX TEKS Physics §112.45(c) electricity and magnetism; FL SC.912.P.10, SC.912.P.12; VA PH.6; MA/CA/NY HS-PS2/HS-PS3/HS-PS4.

Whether you are an educator preparing classroom handouts, a tutor reinforcing weekly topics, or a parent supporting homeschool learning, this printable resource gives students the deliberate practice required to achieve subject fluency and master state standards.

Grade

Physics

Subject

Science

Domain

Science Curriculum

Formats

PDF & DOCX

Sample Practice Problems

Preview the types of problems and questions covered in this worksheet

Below are sample questions representative of the exercises included on this worksheet and related 12.119 Magnetic Force on Moving Charges skill assessments:

Problem 1Difficulty: Mastery

In the same magnetic field, particle A has charge +e and radius 0.20 m, while particle B has charge +2e and radius 0.12 m. What is p_B/p_A?

A0.60

B2.4

C0.30

D1.2

Solution & Explanation:Momentum in a magnetic field is p = |q|Br. With the same B, p_B/p_A = (2e)(0.12)/[(e)(0.20)] = 1.2.

Problem 2Difficulty: Mastery

A singly charged particle has circular radius 0.12 m in a 0.35 T magnetic field. What is its momentum magnitude? Use |q| = 1.60 x 10^-19 C.

A6.7 x 10^-20 kg*m/s

B5.5 x 10^-19 kg*m/s

C6.7 x 10^-21 kg*m/s

D1.5 x 10²⁰ kg*m/s

Solution & Explanation:For magnetic circular motion, p = |q|Br. Thus p = (1.60 x 10^-19)(0.35)(0.12) = 6.7 x 10^-21 kg*m/s.

Problem 3Difficulty: Mastery

A negative particle moves upward on the page and curves left in a uniform magnetic field. Which field direction is consistent with the observed curvature?

Ainto the page

Bout of the page

Cupward on the page

Dto the left on the page

Solution & Explanation:The observed force is left. For a negative charge, the force is opposite v x B. Upward velocity crossed with out-of-page field points right for a positive charge, so the negative particle is forced left.

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Frequently Asked Questions

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QWhat grade level and standards does this worksheet align with?

This worksheet is designed specifically for Physics Science students. It aligns with educational standard 12.119 (NGSS HS-PS2-4, HS-PS2-5, HS-PS3-2, HS-PS3-3, HS-PS3-5, HS-PS4-5; CCSS HSN-Q.A, HSA-CED.A, HSF-IF, HSG-MG; AP Physics 2 E&M units; AP Physics C: E&M enrichment; TX TEKS Physics §112.45(c) electricity and magnetism; FL SC.912.P.10, SC.912.P.12; VA PH.6; MA/CA/NY HS-PS2/HS-PS3/HS-PS4.).