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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 506 · 40 questions
TalentJR

Engineer's tip (Add same way, subtract opposite): Push moves away, pull moves towards; force is measured in newtons (N). Same direction: add. Opposite directions: bigger − smaller, towards the bigger. Weight (N) ≈ mass (kg) × 10.

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  1. 1.💪 A bag has a mass of 7 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  2. 2.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) muscular force (c) friction (d) gravity
  3. 3.Which of these is caused by friction? (a) a fridge magnet sticks (b) brakes stop a bicycle (c) a thrown ball comes down (d) lifting a school bag
  4. 4.True or false: pushing a trolley is a pull. (a) True (b) False
  5. 5.True or false: closing a drawer is a pull. (a) True (b) False
  6. 6.Which of these is caused by muscular force? (a) a magnet picks up pins (b) rubbing hands warms them (c) a rolling ball slows (d) squeezing a lemon
  7. 7.True or false: plucking a mango is a pull. (a) True (b) False
  8. 8.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  9. 9.True or false: plucking a mango is a push. (a) True (b) False
  10. 10.Which of these is caused by gravity? (a) brakes stop a bicycle (b) a rolling ball slows (c) a magnet picks up pins (d) a river flows downhill
  11. 11.💪 A bag has a mass of 52 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  12. 12.💪 A force is a … (a) unit of time (b) type of sound (c) push or a pull (d) kind of colour
  13. 13.💪 Which force pulls everything towards the Earth? (a) wind (b) magnetism (c) friction (d) gravity
  14. 14.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  15. 15.💪 Which force is at work: squeezing a lemon? (a) friction (b) magnetic force (c) muscular force (d) gravity
  16. 16.💪 A box weighs 460 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  17. 17.True or false: kicking a football is a push. (a) True (b) False
  18. 18.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) gravity (c) magnetic force (d) muscular force
  19. 19.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) gravity (c) magnetic force (d) friction
  20. 20.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  21. 21.💪 A box weighs 560 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  22. 22.💪 In a tug of war, one team pulls right with 80 N and the other pulls left with 50 N. What is the size of the net force, in newtons?
  23. 23.True or false: pressing a doorbell is a push. (a) True (b) False
  24. 24.💪 A bag has a mass of 22 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  25. 25.True or false: closing a drawer is a push. (a) True (b) False
  26. 26.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
  27. 27.💪 A box weighs 300 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  28. 28.Which of these is caused by magnetic force? (a) an apple falls down (b) a fridge magnet sticks (c) pedalling a cycle (d) lifting a school bag
  29. 29.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) a fridge magnet sticks (c) rain falls to the ground (d) pedalling a cycle
  30. 30.💪 A bag has a mass of 16 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  31. 31.💪 Two children push a box to the right, one with 100 N and the other with 70 N. What is the net (total) force on the box, in newtons?
  32. 32.True or false: hitting a cricket ball is a pull. (a) False (b) True
  33. 33.💪 A box weighs 170 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  34. 34.💪 Two children push a box to the right, one with 90 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  35. 35.💪 In which unit do we measure force? (a) metre (m) (b) second (s) (c) litre (L) (d) newton (N)
  36. 36.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  37. 37.💪 Which can a force NOT do? (a) start it moving (b) change its colour (c) stop it moving (d) change its shape
  38. 38.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  39. 39.💪 A bag has a mass of 56 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  40. 40.💪 A bag has a mass of 58 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?

Answer key

  1. 70
  2. gravity
  3. brakes stop a bicycle
  4. False
  5. False
  6. squeezing a lemon
  7. True
  8. a pull
  9. False
  10. a river flows downhill
  11. 520
  12. push or a pull
  13. gravity
  14. a push
  15. muscular force
  16. 46
  17. True
  18. magnetic force
  19. friction
  20. a push
  21. 56
  22. 30
  23. True
  24. 220
  25. True
  26. a pull
  27. 30
  28. a fridge magnet sticks
  29. pedalling a cycle
  30. 160
  31. 170
  32. False
  33. 17
  34. 95
  35. newton (N)
  36. a pull
  37. change its colour
  38. a pull
  39. 560
  40. 580

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