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Grade 7 · Physics

Grade 7 Forces & equilibrium worksheet

20 questions on forces & equilibrium. The answer key is a separate download.

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What is on the worksheet

  1. A mass of 72 kg is in a model gravitational field of 1.6 N/kg. Find its weight. Round to 3 decimal places if needed. Answer in N.

  2. A 16 kg cart has horizontal forces 130 N right and 95 N left. No other horizontal forces act. Taking right as positive, find its acceleration. Round to 3 decimal places if needed. Answer in m/s².

  3. A mass of 12 kg is in a model gravitational field of 9.8 N/kg. Find its weight. Round to 3 decimal places if needed. Answer in N.

  4. A mass of 64 kg is in a model gravitational field of 10 N/kg. Find its weight. Round to 3 decimal places if needed. Answer in N.

  5. A 8 kg cart has horizontal forces 15 N right and 25 N left. No other horizontal forces act. Taking right as positive, find its acceleration. Round to 3 decimal places if needed. Answer in m/s².

  6. A 16 kg cart has horizontal forces 127 N right and 77 N left. No other horizontal forces act. Taking right as positive, find its acceleration. Round to 3 decimal places if needed. Answer in m/s².

  7. A 13 kg cart has horizontal forces 106 N right and 86 N left. No other horizontal forces act. Taking right as positive, find its acceleration. Round to 3 decimal places if needed. Answer in m/s².

  8. A 17 kg cart has horizontal forces 109 N right and 16 N left. No other horizontal forces act. Taking right as positive, find its acceleration. Round to 3 decimal places if needed. Answer in m/s².

  9. A mass of 50 kg is in a model gravitational field of 3.7 N/kg. Find its weight. Round to 3 decimal places if needed. Answer in N.

  10. A mass of 87 kg is in a model gravitational field of 9.8 N/kg. Find its weight. Round to 3 decimal places if needed. Answer in N.

  11. A mass of 22 kg is in a model gravitational field of 10 N/kg. Find its weight. Round to 3 decimal places if needed. Answer in N.

  12. A mass of 46 kg is in a model gravitational field of 10 N/kg. Find its weight. Round to 3 decimal places if needed. Answer in N.

  13. A 11 kg cart has horizontal forces 127 N right and 27 N left. No other horizontal forces act. Taking right as positive, find its acceleration. Round to 3 decimal places if needed. Answer in m/s².

  14. A 2 kg cart has horizontal forces 38 N right and 24 N left. No other horizontal forces act. Taking right as positive, find its acceleration. Round to 3 decimal places if needed. Answer in m/s².

  15. A 11 kg cart has horizontal forces 135 N right and 47 N left. No other horizontal forces act. Taking right as positive, find its acceleration. Round to 3 decimal places if needed. Answer in m/s².

  16. A 14 kg cart has horizontal forces 21 N right and 109 N left. No other horizontal forces act. Taking right as positive, find its acceleration. Round to 3 decimal places if needed. Answer in m/s².

  17. A 20 kg cart has horizontal forces 36 N right and 34 N left. No other horizontal forces act. Taking right as positive, find its acceleration. Round to 3 decimal places if needed. Answer in m/s².

  18. A 13 kg cart has horizontal forces 99 N right and 117 N left. No other horizontal forces act. Taking right as positive, find its acceleration. Round to 3 decimal places if needed. Answer in m/s².

  19. A 18 kg cart has horizontal forces 125 N right and 34 N left. No other horizontal forces act. Taking right as positive, find its acceleration. Round to 3 decimal places if needed. Answer in m/s².

  20. A 18 kg cart has horizontal forces 99 N right and 120 N left. No other horizontal forces act. Taking right as positive, find its acceleration. Round to 3 decimal places if needed. Answer in m/s².

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