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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 897 · 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 cart is pulled to the right with 70 N and to the left with 55 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  2. 2.Which of these is caused by muscular force? (a) a river flows downhill (b) brakes stop a bicycle (c) rain falls to the ground (d) lifting a school bag
  3. 3.💪 Two children push a box to the right, one with 5 N and the other with 75 N. What is the net (total) force on the box, in newtons?
  4. 4.True or false: closing a drawer is a push. (a) True (b) False
  5. 5.💪 A force is a … (a) type of sound (b) kind of colour (c) unit of time (d) push or a pull
  6. 6.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  7. 7.💪 A box weighs 400 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  8. 8.💪 In a tug of war, one team pulls right with 75 N and the other pulls left with 70 N. What is the size of the net force, in newtons?
  9. 9.💪 In which unit do we measure force? (a) metre (m) (b) newton (N) (c) litre (L) (d) second (s)
  10. 10.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) friction (c) gravity (d) muscular force
  11. 11.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) doubled (c) unbalanced (d) gravity
  12. 12.💪 In a tug of war, one team pulls right with 80 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
  13. 13.💪 A bag has a mass of 39 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  14. 14.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  15. 15.💪 Which force pulls everything towards the Earth? (a) gravity (b) friction (c) magnetism (d) wind
  16. 16.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  17. 17.💪 Which force is at work: pedalling a cycle? (a) muscular force (b) friction (c) gravity (d) magnetic force
  18. 18.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  19. 19.True or false: pushing a swing is a pull. (a) False (b) True
  20. 20.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) magnetic force (c) friction (d) gravity
  21. 21.True or false: pushing a trolley is a pull. (a) True (b) False
  22. 22.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  23. 23.💪 Which force is at work: brakes stop a bicycle? (a) magnetic force (b) friction (c) muscular force (d) gravity
  24. 24.Which of these is caused by friction? (a) lifting a school bag (b) an apple falls down (c) a magnet picks up pins (d) shoes grip the floor
  25. 25.💪 A box weighs 30 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  26. 26.💪 Two children push a box to the right, one with 95 N and the other with 55 N. What is the net (total) force on the box, in newtons?
  27. 27.💪 Two children push a box to the right, one with 50 N and the other with 20 N. What is the net (total) force on the box, in newtons?
  28. 28.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
  29. 29.💪 In a tug of war, one team pulls left with 65 N and the other pulls right with 35 N. What is the size of the net force, in newtons?
  30. 30.💪 A cart is pulled to the right with 90 N and to the left with 85 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  31. 31.💪 Which can a force NOT do? (a) start it moving (b) change its colour (c) stop it moving (d) change its shape
  32. 32.True or false: pulling up your socks is a pull. (a) True (b) False
  33. 33.Which of these is caused by gravity? (a) brakes stop a bicycle (b) pedalling a cycle (c) a river flows downhill (d) rubbing hands warms them
  34. 34.💪 Which force is at work: lifting a school bag? (a) muscular force (b) gravity (c) magnetic force (d) friction
  35. 35.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  36. 36.True or false: pulling a cart is a push. (a) False (b) True
  37. 37.💪 Which force is at work: squeezing a lemon? (a) friction (b) muscular force (c) gravity (d) magnetic force
  38. 38.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  39. 39.💪 A bag has a mass of 11 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  40. 40.Which of these is caused by magnetic force? (a) a river flows downhill (b) a fridge magnet sticks (c) an apple falls down (d) rubbing hands warms them

Answer key

  1. to the right
  2. lifting a school bag
  3. 80
  4. True
  5. push or a pull
  6. a push
  7. 40
  8. 5
  9. newton (N)
  10. gravity
  11. balanced
  12. 55
  13. 390
  14. a pull
  15. gravity
  16. a pull
  17. muscular force
  18. a push
  19. False
  20. friction
  21. False
  22. a pull
  23. friction
  24. shoes grip the floor
  25. 3
  26. 150
  27. 70
  28. a pull
  29. 30
  30. to the right
  31. change its colour
  32. True
  33. a river flows downhill
  34. muscular force
  35. a push
  36. False
  37. muscular force
  38. a push
  39. 110
  40. a fridge magnet sticks

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