Free Printable WorksheetScienceGrade 8Science CurriculumSCI.8.37

8.37 Balanced and Unbalanced Forces Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 8 Science worksheet provides structured practice on 8.37 Balanced and Unbalanced Forces. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Balanced and Unbalanced Forces - Which explanation best motion changes qualitatively when forces are balanced or unbalanced, and identify the net force on an object? (NGSS MS‑PS2‑2; CCC: Cause/Effect; TEKS §112.28 Grade 8; FL NGSSS; VA SOL; MA STE)

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

Grade 8

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 8.37 Balanced and Unbalanced Forces skill assessments:

Problem 1Difficulty: Mastery

Which statement best describes the net force (magnitude and direction)?

AForces are balanced; net force = 0 N.

BForces are unbalanced; net force is about 14 N toward the northeast.

CForces are unbalanced; net force is about 7.2 N toward the northeast (6 N east and 4 N north).

DForces are unbalanced; net force = 4 N east.

Solution & Explanation:Net east-west = 10 − 4 = 6 N east. Net north-south = 6 − 2 = 4 N north. Resultant magnitude √(6²+4²)=√52≈7.2 N, toward the northeast.

Problem 2Difficulty: Mastery

What is the net force on the cart?,A. Forces are unbalanced; net force = 10 N northeast. | B. Forces are balanced; net force = 0 N because 20 E and 15 N combine to 25 NE

Awhich is canceled by 25 SW.

BForces are unbalanced; net force = 50 N southwest.

CForces are balanced; net force = 25 N northeast because the 25 N force dominates.,B,First combine perpendicular forces: √(20² + 15²) = √(400 + 225) = 25 N toward NE. A 25 N force toward SW cancels that exactly

Solution & Explanation:motion

Problem 3Difficulty: Mastery

Right after the surface change, what is the net force and what happens to the block?

AForces are unbalanced; net force = 10 N left; the block slows down.

BForces are unbalanced; net force = 20 N right; the block begins speeding up right.

CForces are unbalanced; net force = 10 N right; the block begins speeding up to the right.

DForces are balanced; net force = 0 N; the block continues at the same speed.

Solution & Explanation:After friction drops, net force = 15 N right − 5 N left = 10 N right. A rightward net force means rightward acceleration, so the block speeds up.

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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 Grade 8 Science students. It aligns with educational standard SCI.8.37 (Determine whether forces are balanced or unbalanced and predict motion outcomes.).