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12.37 Static and Kinetic Friction Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Physics Science worksheet provides structured practice on 12.37 Static and Kinetic Friction. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Static and Kinetic Friction: Determine friction direction, magnitude, coefficient, or threshold condition for motion. Aligned to NGSS, CCSS Literacy and Mathematics, AP Physics, and selected state frameworks 12.37 - Static and Kinetic Friction: NGSS HS-PS2-1, HS-PS2-3, HS-PS2-4; CCSS HSN-Q.A, HSA-CED.A, HSG-MG; AP Physics 1 Unit 2; AP Physics C: Mechanics dynamics enrichment; TX TEKS Physics §112.45(c) forces; FL SC.912.P.12.3, SC.912.P.12.4; VA PH.3; MA/CA/NY HS-PS2.

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 12.37 Static and Kinetic Friction skill assessments:

Problem 1Difficulty: Mastery

A 10 kg crate on a level floor has two horizontal applied forces: 40 N right and 15 N left. The coefficients are mu_s = 0.30 and mu_k = 0.20. Use g = 9.8 m/s². What happens?

AIt slides right, and kinetic friction is 19.6 N left

BIt remains at rest, and static friction is 29.4 N left

CIt slides left, and kinetic friction is 19.6 N right

DIt remains at rest, and static friction is 25 N left

Solution & Explanation:The net applied force is 40 - 15 = 25 N right. The maximum static friction is 0.30(10)(9.8) = 29.4 N, so static friction can balance the applied forces with 25 N left and the crate remains at rest.

Problem 2Difficulty: Mastery

A 7.0 kg block is squeezed between two vertical plates. Each plate exerts an 80 N normal force, and mu_s = 0.30 at each contact. Can the plates hold the block at rest?

AYes; one plate alone provides 68.6 N of friction

BYes; the total maximum static friction is 160 N

CNo; total maximum static friction is 48 N, less than the 68.6 N weight

DNo; friction acts downward when plates squeeze inward

Solution & Explanation:Each contact can supply at most 0.30(80) = 24 N of static friction, for a total of 48 N upward. The weight is 7.0(9.8) = 68.6 N, so the block cannot be held at rest.

Problem 3Difficulty: Mastery

A 5.0 kg block is pressed against a vertical wall by a 120 N horizontal force. What minimum coefficient of static friction is needed to keep it from sliding down? Use g = 9.8 m/s².

A0.24

B0.41

C0.50

D2.45

Solution & Explanation:The wall's normal force is 120 N. To hold the block, mu_s N >= mg, so mu_s >= 49/120 = 0.41.

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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 12.37 (NGSS HS-PS2-1, HS-PS2-3, HS-PS2-4; CCSS HSN-Q.A, HSA-CED.A, HSG-MG; AP Physics 1 Unit 2; AP Physics C: Mechanics dynamics enrichment; TX TEKS Physics §112.45(c) forces; FL SC.912.P.12.3, SC.912.P.12.4; VA PH.3; MA/CA/NY HS-PS2.).