Free Printable WorksheetScienceGrade 9Science CurriculumNGSS HS-PS3-2, HS-PS3-3

9.54 Energy Transformations and Conservation Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Physical Science with Earth and Science Science worksheet provides structured practice on 9.54 Energy Transformations and Conservation. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Energy Transformations and Conservation: MCQ focus: trace energy transformations and identify conserved total energy even when useful energy decreases. Aligned to NGSS high school Physical Science, Earth and Space Science, and Engineering Design; NRC/DCI; SEP/CCC; CCSS math/literacy connections; selected CA NGSS, NYSSLS, Florida CPALMS, and Texas TEKS references NGSS HS-PS3-2, HS-PS3-3 - NGSS-aligned Energy Transformations and Conservation: NGSS: HS-PS3-2; HS-PS3-3; NRC/DCI: PS3.A-B; SEP/CCC: Energy and matter / Systems; Common: RST.9-10.7; State refs: CA/NYSSLS same HS-PS PE family; FL SC.912.P.10; TX IPC energy strand.

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

Physical Science with Earth and Science

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 9.54 Energy Transformations and Conservation skill assessments:

Problem 1Difficulty: Mastery

Which scenario best demonstrates conservation of energy even when useful energy decreases?

AA lamp receives 400 J and outputs 500 J of light with no other change.

BA motor receives 400 J, raises a load by 250 J, and transfers 150 J to thermal energy and sound.

CA battery loses 400 J of chemical energy, and all of it is destroyed inside a wire.

DA cart starts with 400 J and ends with 250 J, with no other energy transfers counted.

Solution & Explanation:The motor scenario accounts for all 400 J while showing that only part of the input becomes useful output. That is exactly the distinction between total and useful energy.

Problem 2Difficulty: Mastery

Use the spring-glider energy bar model. What value should the missing thermal energy bar have at position 3?

A55 J

B0 J

C35 J

D90 J

Solution & Explanation:The starting total is 90 J. At position 3, the visible elastic and kinetic bars total 55 J, so the missing thermal energy must be 35 J to conserve total energy.

Problem 3Difficulty: Mastery

Two bulbs each receive 10 W of electrical power. Bulb X produces 2 W of light and 8 W of thermal energy. Bulb Y produces 0.5 W of light and 9.5 W of thermal energy. Which statement is best?

AOnly Bulb Y conserves energy because most output is thermal.

BBoth conserve energy each second, but Bulb X sends a larger fraction into useful light.

CBulb X creates extra light energy because it is more efficient.

DBulb Y destroys 9.5 W because thermal energy is unwanted.

Solution & Explanation:For both bulbs, light plus thermal power equals 10 W. The useful fraction differs, but total power is conserved.

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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 Physical Science with Earth and Science Science students. It aligns with educational standard NGSS HS-PS3-2, HS-PS3-3 (NGSS: HS-PS3-2; HS-PS3-3; NRC/DCI: PS3.A-B; SEP/CCC: Energy and matter / Systems; Common: RST.9-10.7; State refs: CA/NYSSLS same HS-PS PE family; FL SC.912.P.10; TX IPC energy strand.).