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Grade 10 · Science

Grade 10 Science practice

20 questions on chemistry, matter & forces, motion & energy, electricity & circuits. The answer key is a separate download.

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What is on the worksheet

  1. An ideal decay model starts with 368 mg. What expected mass remains after 3 half-lives, in mg?

  2. A sample has mass 700 g and volume 50 cm³. Calculate density in g/cm³.

  3. Lift a 26 kg mass vertically by 14 m. Using g = 10 m/s², find the increase in gravitational potential energy in J.

  4. In a simplified isotope exercise, atomic number Z = 8 and mass number A = 42. How many neutrons?

  5. Dilute 250 mL of a 1.2 mol/L solution to 0.6 mol/L without losing solute. Find the final volume in mL.

  6. In a simplified isotope exercise, atomic number Z = 16 and mass number A = 35. How many neutrons?

  7. Lift a 33 kg mass vertically by 23 m. Using g = 10 m/s², find the increase in gravitational potential energy in J.

  8. Velocity changes from 15 m/s to 27 m/s in 3 s. Find average acceleration in m/s².

  9. In a simplified isotope exercise, atomic number Z = 9 and mass number A = 40. How many neutrons?

  10. Three ideal resistors of 23 Ω, 87 Ω and 71 Ω are in series. Find total resistance in Ω.

  11. Velocity changes from 3 m/s to 15 m/s in 4 s. A learner divides 15 by 4 for acceleration. Explain the missing step.

  12. In a simplified isotope exercise, atomic number Z = 2 and mass number A = 28. How many neutrons?

  13. A solution contains 1 mol of solute in a final solution volume of 13 L. Find concentration in mol/L as a fraction or decimal.

  14. A perpendicular force of 1365 N acts over 13 m². Find the pressure in Pa.

  15. Resistors of 5 Ω and 40 Ω are connected in parallel. Find the equivalent resistance in Ω as an exact fraction or integer.

  16. Lift a 35 kg mass vertically by 6 m. Using g = 10 m/s², find the increase in gravitational potential energy in J.

  17. A constant current of 11 A flows for 76 s. How much charge passes in C?

  18. A sample has mass 60 g and volume 6 cm³. Calculate density in g/cm³.

  19. A constant current of 12 A flows for 45 s. How much charge passes in C?

  20. A 15 kg sample has specific heat 200 J/(kg·°C). Its temperature rises 4°C with no phase change. Find the energy gained in J.

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