Free Printable Physics Worksheets

Unlimited random practice for grades 6–9 physical science: speed (km/h↔m/s), force (F = m × a), energy (J↔kJ) and temperature (°C↔K↔°F). Every answer is computed from exact SI constants and can be verified with the UnitFig converters — practice and check in one place.

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Speed Conversion Worksheets — km/h to m/s (Free Printable)

Practice converting speed between km/h and m/s with the exact factor 1 m/s = 3.6 km/h. Built for grade 6–9 physical science. Letter-size print, answer key, free.

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Force Worksheets — F = m × a Practice (Free Printable)

Practice Newton’s second law F = m × a: mass (kg) times acceleration (m/s²) gives force in newtons. Grade 6–9 physical science. Letter-size print, answer key, free.

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Energy Conversion Worksheets — Joules to Kilojoules (Free)

Practice converting energy between joules (J) and kilojoules (kJ): 1 kJ = 1000 J. Grade 6–9 physical science. Letter-size print, answer key, free.

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Temperature Conversion Worksheets — °C, K & °F (Free)

Practice converting temperature between Celsius, Kelvin and Fahrenheit: K = °C + 273.15, °F = °C × 9/5 + 32. Grade 6–10 physical science. Letter-size print, answer key, free.

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Why UnitFig physics worksheets?

Exact SI constants

Speed (3.6), energy (1000), temperature (273.15 / 9-5-32) match the UnitFig converters, so answers verify against real tools.

Algorithm-generated, zero-error

The same deterministic engine as the math sheets computes each answer; a build-time check validates the samples.

No sign-up, US Letter print

Print straight from the browser with name/date lines and an optional answer key on the same page.

Converters on one site

Practice a physics conversion, then open the matching UnitFig converter to check it — a combination no other worksheet site offers.

Frequently Asked Questions

Are these physics worksheets tied to the UnitFig converters?

Yes. Every physics worksheet uses the same exact constants as the UnitFig unit converters (3.6 for speed, 1000 for energy, 273.15 for Kelvin, 9/5+32 for Fahrenheit), so a student can verify any answer with the matching tool on the same site.

What grades are these for?

The four topics target grades 6–9 physical-science bands: speed and force in motion/forces units, energy in work/power, and temperature in matter/thermodynamics.

Are the problems generated or fixed?

Generated by the same deterministic engine as the math worksheets — every "New problems" click produces a fresh, duplicate-free set, and the build self-checks the answers.

Do they print on standard paper?

Yes, US Letter (8.5×11 in) with name/date lines and an optional answer key on the same page.

Last Updated 2026 | Physics answers use exact SI constants and can be verified with the UnitFig converters.

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