Free Printable WorksheetScienceGrade 12Science Curriculum12.93

12.93 Refraction, Snell's Law, and Total Internal Reflection Worksheet

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Q: What grade level and standards does this worksheet align with?

This worksheet is designed specifically for Physics Science students. It aligns with educational standard 12.93 (Corresponding standards/alignment: NGSS HS-PS4-1, HS-PS4-2, HS-PS4-3, HS-PS4-4, HS-PS4-5; CCSS HSN-Q.A, HSF-IF, HSG-MG, RST.11-12.7; AP Physics 1 oscillations; AP Physics 2 waves, sound, physical optics, geometric optics; TX TEKS Physics §112.45(c) waves/light; FL SC.912.P.10, SC.912.P.12; VA PH.5/PH.7; MA/CA/NY HS-PS4.).

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Physics Science worksheet provides structured practice on 12.93 Refraction, Snell's Law, and Total Internal Reflection. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Refraction, Snell's Law, and Total Internal Reflection: Determine ray bending, index of refraction, critical angle, or total-internal-reflection conditions. Aligned to NGSS, CCSS Literacy and Mathematics, AP Physics, and selected state frameworks 12.93 - Refraction, Snell's Law, and Total Internal Reflection: Corresponding standards/alignment: NGSS HS-PS4-1, HS-PS4-2, HS-PS4-3, HS-PS4-4, HS-PS4-5; CCSS HSN-Q.A, HSF-IF, HSG-MG, RST.11-12.7; AP Physics 1 oscillations; AP Physics 2 waves, sound, physical optics, geometric optics; TX TEKS Physics §112.45(c) waves/light; FL SC.912.P.10, SC.912.P.12; VA PH.5/PH.7; MA/CA/NY 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 12.93 Refraction, Snell's Law, and Total Internal Reflection skill assessments:

Problem 1Difficulty: Mastery

A glass prism with n = 1.52 is used as a total-internal-reflection sensor. A ray inside the prism hits the sample boundary at 60 degrees from the normal. TIR will fail when the sample index is greater than what approximate value?

A1.00

B1.14

C1.52

D1.32

Solution & Explanation:TIR requires n_sample < n_prism sin(theta_i). Here 1.52 sin(60 degrees) is about 1.32. If the sample index is greater than this, a refracted ray can exist and TIR fails.

Problem 2Difficulty: Mastery

A simplified rainbow model involves sunlight entering a spherical water drop, reflecting once inside, and exiting back to air. Which sequence of optical processes is involved?

AReflection on entry, absorption inside, then emission on exit

BTotal internal reflection on entry, then no exit ray

CRefraction on entry, internal reflection, then refraction on exit

DRefraction only on entry with no direction change afterward

Solution & Explanation:In a basic ray model of a primary rainbow, light refracts into the drop, reflects internally, and refracts again as it exits.

Problem 3Difficulty: Mastery

Material A has a larger critical angle to air than material B. What does that imply about their refractive indices?

AMaterial A has the larger refractive index.

BMaterial A has the smaller refractive index.

CBoth materials have the same refractive index.

DCritical angle does not depend on refractive index.

Solution & Explanation:For a material-air boundary, theta_c = sin^-1(1/n). A larger critical angle means 1/n is larger, so n is smaller.

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Frequently Asked Questions

Common questions about printing, using, and solving this worksheet

QHow do I download and print this 12.93 Refraction, Snell's Law, and Total Internal Reflection worksheet?

Click either the "Download PDF" or "Download DOCX" button at the top of the page. You can print the PDF directly from your browser or edit the DOCX file in Microsoft Word or Google Docs to tailor the questions to your students.

QIs this 12.93 Refraction, Snell's Law, and Total Internal Reflection worksheet free for teachers and homeschoolers?

Yes! All learning materials, worksheets, and practice resources on Free K12 Practice are 100% free for teachers, students, parents, tutors, and homeschooling families for non-commercial educational use. No account or subscription is required.

QCan students practice 12.93 Refraction, Snell's Law, and Total Internal Reflection online with instant feedback?

Yes! In addition to this printable worksheet, students can practice 12.93 Refraction, Snell's Law, and Total Internal Reflection interactively on our platform with automated grading, instant score tracking, and detailed step-by-step solutions.

QWhat grade level and standards does this worksheet align with?

This worksheet is designed specifically for Physics Science students. It aligns with educational standard 12.93 (Corresponding standards/alignment: NGSS HS-PS4-1, HS-PS4-2, HS-PS4-3, HS-PS4-4, HS-PS4-5; CCSS HSN-Q.A, HSF-IF, HSG-MG, RST.11-12.7; AP Physics 1 oscillations; AP Physics 2 waves, sound, physical optics, geometric optics; TX TEKS Physics §112.45(c) waves/light; FL SC.912.P.10, SC.912.P.12; VA PH.5/PH.7; MA/CA/NY HS-PS4.).