Free Printable WorksheetScienceGrade 8Science CurriculumSCI.8.39

8.39 Newton's Second Law (Force, Mass and Acceleration) Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 8 Science worksheet provides structured practice on 8.39 Newton's Second Law (Force, Mass and Acceleration). Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Newton’s Second Law (Force, Mass and Acceleration) - Which relationship best changes in acceleration to changes in net force and mass; analyze simple quantitative situations? (NGSS MS‑PS2‑2; CCSS Math 8.EE; 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 8.39 Newton's Second Law (Force, Mass and Acceleration) skill assessments:

Problem 1Difficulty: Mastery

A 4 kg airport luggage cart starts from rest. A net force of 30 N acts for 3 s, then a net force of 12 N acts for 3 s (same direction). "What is the object’s speed after the total time?,A. 45 m/s | B. 21 m/s | C. 31.5 m/s | D. 10.5 m/s,C,Find accelerations from Newton’s second law: a1=F1/m and a2=F2/m. Speed change is Δv = a·t for each stage

Solution & Explanation:and acceleration practice questions,newton's second law: force

Problem 2Difficulty: Mastery

Three different objects are pushed on low-friction surfaces: • A: 10 kg camera dolly with net force 28 N • B: 5 kg delivery bot with net force 15 N • C: 11 kg toy wagon with net force 40 N Which object has the smallest acceleration?

AAll are equal

BObject A

CObject B

DObject C

Solution & Explanation:Compute a = F_net/m for A, B, and C. The smallest value of F/m corresponds to the smallest acceleration.

Problem 3Difficulty: Mastery

A 12 kg wagon accelerates at 0.5 m/s². What net force is acting on the wagon?

A24 N

B12 N

C6 N

D0.5 N

Solution & Explanation:Use Fnet = m × a. The net force is 12 kg × 0.5 m/s² = 6 N.

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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.8.39 (Relate net force, mass, and acceleration using Newton's Second Law.).