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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 491 · 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.

NameDateTime takenScore ___ / 40
  1. 1.💪 A force is a … (a) push or a pull (b) type of sound (c) unit of time (d) kind of colour
  2. 2.💪 Two children push a box to the right, one with 5 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  3. 3.💪 A box weighs 280 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  4. 4.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) magnetic force (c) gravity (d) friction
  5. 5.💪 A cart is pulled to the right with 35 N and to the left with 35 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  6. 6.True or false: pushing a trolley is a push. (a) True (b) False
  7. 7.💪 A bag has a mass of 3 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  8. 8.True or false: pulling a cart is a push. (a) False (b) True
  9. 9.💪 In a tug of war, one team pulls right with 30 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
  10. 10.💪 A cart is pulled to the right with 100 N and to the left with 95 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  11. 11.💪 Which force is at work: brakes stop a bicycle? (a) friction (b) muscular force (c) magnetic force (d) gravity
  12. 12.💪 Which force pulls everything towards the Earth? (a) magnetism (b) friction (c) gravity (d) wind
  13. 13.True or false: pulling up your socks is a pull. (a) False (b) True
  14. 14.True or false: a tug of war is a push. (a) False (b) True
  15. 15.Which of these is caused by muscular force? (a) a fridge magnet sticks (b) rain falls to the ground (c) brakes stop a bicycle (d) pedalling a cycle
  16. 16.True or false: hitting a cricket ball is a pull. (a) False (b) True
  17. 17.💪 A bag has a mass of 51 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  18. 18.True or false: drawing up a well bucket is a push. (a) True (b) False
  19. 19.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  20. 20.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  21. 21.💪 Which can a force NOT do? (a) stop it moving (b) change its shape (c) change its colour (d) start it moving
  22. 22.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) a magnet picks up pins (c) lifting a school bag (d) a river flows downhill
  23. 23.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  24. 24.Which of these is caused by gravity? (a) rain falls to the ground (b) a fridge magnet sticks (c) a rolling ball slows (d) lifting a school bag
  25. 25.💪 A box weighs 500 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  26. 26.💪 A cart is pulled to the right with 95 N and to the left with 80 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  27. 27.True or false: plucking a mango is a push. (a) False (b) True
  28. 28.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  29. 29.💪 In a tug of war, one team pulls right with 35 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  30. 30.💪 In a tug of war, one team pulls right with 25 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  31. 31.💪 A bag has a mass of 28 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  32. 32.True or false: a tug of war is a pull. (a) True (b) False
  33. 33.💪 In a tug of war, one team pulls right with 15 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  34. 34.True or false: pushing a swing is a pull. (a) True (b) False
  35. 35.💪 In a tug of war, one team pulls right with 85 N and the other pulls left with 60 N. What is the size of the net force, in newtons?
  36. 36.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) unbalanced (c) gravity (d) balanced
  37. 37.💪 In which unit do we measure force? (a) second (s) (b) metre (m) (c) litre (L) (d) newton (N)
  38. 38.💪 Which force is at work: an apple falls down? (a) muscular force (b) gravity (c) friction (d) magnetic force
  39. 39.💪 In a tug of war, one team pulls left with 40 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
  40. 40.💪 A bag has a mass of 29 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?

Answer key

  1. push or a pull
  2. 30
  3. 28
  4. friction
  5. no net force
  6. True
  7. 30
  8. False
  9. 5
  10. to the right
  11. friction
  12. gravity
  13. True
  14. False
  15. pedalling a cycle
  16. False
  17. 510
  18. False
  19. a pull
  20. a push
  21. change its colour
  22. lifting a school bag
  23. a push
  24. rain falls to the ground
  25. 50
  26. to the right
  27. False
  28. a push
  29. 25
  30. 20
  31. 280
  32. True
  33. 5
  34. False
  35. 25
  36. balanced
  37. newton (N)
  38. gravity
  39. 30
  40. 290

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