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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 130 · 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.Which of these is caused by gravity? (a) a fridge magnet sticks (b) a rolling ball slows (c) rubbing hands warms them (d) a thrown ball comes down
  2. 2.💪 Two children push a box to the right, one with 25 N and the other with 20 N. What is the net (total) force on the box, in newtons?
  3. 3.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
  4. 4.💪 Which force pulls everything towards the Earth? (a) friction (b) magnetism (c) gravity (d) wind
  5. 5.💪 Which can a force NOT do? (a) stop it moving (b) change its colour (c) start it moving (d) change its shape
  6. 6.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  7. 7.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
  8. 8.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) muscular force (c) magnetic force (d) friction
  9. 9.💪 Two children push a box to the right, one with 60 N and the other with 60 N. What is the net (total) force on the box, in newtons?
  10. 10.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
  11. 11.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) magnetic force (c) gravity (d) friction
  12. 12.💪 A bag has a mass of 15 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  13. 13.True or false: pushing a trolley is a push. (a) True (b) False
  14. 14.💪 A box weighs 10 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  15. 15.💪 A cart is pulled to the right with 30 N and to the left with 15 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  16. 16.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  17. 17.💪 Two children push a box to the right, one with 45 N and the other with 85 N. What is the net (total) force on the box, in newtons?
  18. 18.Which of these is caused by magnetic force? (a) rubbing hands warms them (b) squeezing a lemon (c) a magnet picks up pins (d) a river flows downhill
  19. 19.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  20. 20.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  21. 21.Which of these is caused by friction? (a) a thrown ball comes down (b) rubbing hands warms them (c) a river flows downhill (d) a fridge magnet sticks
  22. 22.True or false: pulling a cart is a push. (a) True (b) False
  23. 23.True or false: kicking a football is a push. (a) False (b) True
  24. 24.💪 Which force is at work: a compass needle turns? (a) muscular force (b) friction (c) gravity (d) magnetic force
  25. 25.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  26. 26.True or false: hitting a cricket ball is a pull. (a) False (b) True
  27. 27.💪 A cart is pulled to the right with 40 N and to the left with 25 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  28. 28.💪 A bag has a mass of 34 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  29. 29.💪 A box weighs 100 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  30. 30.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  31. 31.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  32. 32.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  33. 33.💪 A box weighs 320 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  34. 34.True or false: drawing up a well bucket is a push. (a) True (b) False
  35. 35.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) rain falls to the ground (c) lifting a school bag (d) a magnet picks up pins
  36. 36.💪 Two children push a box to the right, one with 25 N and the other with 85 N. What is the net (total) force on the box, in newtons?
  37. 37.💪 A box weighs 160 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  38. 38.💪 A force is a … (a) type of sound (b) kind of colour (c) push or a pull (d) unit of time
  39. 39.Which of these is caused by muscular force? (a) a compass needle turns (b) rubbing hands warms them (c) a fridge magnet sticks (d) pedalling a cycle
  40. 40.💪 Two children push a box to the right, one with 25 N and the other with 100 N. What is the net (total) force on the box, in newtons?

Answer key

  1. a thrown ball comes down
  2. 45
  3. 15
  4. gravity
  5. change its colour
  6. a pull
  7. a push
  8. gravity
  9. 120
  10. 10
  11. magnetic force
  12. 150
  13. True
  14. 1
  15. to the right
  16. a push
  17. 130
  18. a magnet picks up pins
  19. a push
  20. a push
  21. rubbing hands warms them
  22. False
  23. True
  24. magnetic force
  25. a push
  26. False
  27. to the right
  28. 340
  29. 10
  30. a pull
  31. a pull
  32. a pull
  33. 32
  34. False
  35. lifting a school bag
  36. 110
  37. 16
  38. push or a pull
  39. pedalling a cycle
  40. 125

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