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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 974 · 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.True or false: pressing a doorbell is a push. (a) False (b) True
  2. 2.💪 Which can a force NOT do? (a) change its colour (b) start it moving (c) stop it moving (d) change its shape
  3. 3.💪 Which force is at work: a compass needle turns? (a) magnetic force (b) gravity (c) muscular force (d) friction
  4. 4.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
  5. 5.True or false: drawing up a well bucket is a pull. (a) False (b) True
  6. 6.💪 A cart is pulled to the right with 90 N and to the left with 100 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  7. 7.💪 A bag has a mass of 18 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  8. 8.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) a magnet picks up pins (c) rain falls to the ground (d) shoes grip the floor
  9. 9.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) magnetic force (c) gravity (d) friction
  10. 10.💪 In which unit do we measure force? (a) metre (m) (b) newton (N) (c) litre (L) (d) second (s)
  11. 11.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
  12. 12.💪 A bag has a mass of 32 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  13. 13.True or false: kicking a football is a pull. (a) False (b) True
  14. 14.💪 A box weighs 330 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  15. 15.True or false: pulling a cart is a push. (a) True (b) False
  16. 16.💪 A box weighs 270 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  17. 17.💪 Which force is at work: squeezing a lemon? (a) friction (b) muscular force (c) magnetic force (d) gravity
  18. 18.True or false: plucking a mango is a pull. (a) True (b) False
  19. 19.💪 A box weighs 50 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  20. 20.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) doubled (c) unbalanced (d) gravity
  21. 21.💪 A box weighs 40 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  22. 22.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  23. 23.True or false: pressing a doorbell is a pull. (a) True (b) False
  24. 24.💪 A box weighs 160 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  25. 25.True or false: closing a drawer is a pull. (a) False (b) True
  26. 26.💪 A bag has a mass of 54 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  27. 27.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  28. 28.True or false: pulling up your socks is a pull. (a) False (b) True
  29. 29.💪 In a tug of war, one team pulls right with 35 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
  30. 30.True or false: hitting a cricket ball is a push. (a) True (b) False
  31. 31.💪 Two children push a box to the right, one with 50 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  32. 32.💪 A force is a … (a) type of sound (b) push or a pull (c) kind of colour (d) unit of time
  33. 33.💪 Two children push a box to the right, one with 90 N and the other with 65 N. What is the net (total) force on the box, in newtons?
  34. 34.💪 Which force is at work: lifting a school bag? (a) friction (b) muscular force (c) gravity (d) magnetic force
  35. 35.💪 A cart is pulled to the right with 85 N and to the left with 85 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  36. 36.Which of these is caused by friction? (a) a magnet picks up pins (b) a thrown ball comes down (c) lifting a school bag (d) rubbing hands warms them
  37. 37.💪 Which force is at work: a river flows downhill? (a) friction (b) muscular force (c) magnetic force (d) gravity
  38. 38.Which of these is caused by gravity? (a) a fridge magnet sticks (b) brakes stop a bicycle (c) lifting a school bag (d) a thrown ball comes down
  39. 39.💪 A bag has a mass of 40 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  40. 40.💪 A bag has a mass of 45 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?

Answer key

  1. True
  2. change its colour
  3. magnetic force
  4. a push
  5. True
  6. to the left
  7. 180
  8. a magnet picks up pins
  9. gravity
  10. newton (N)
  11. a pull
  12. 320
  13. False
  14. 33
  15. False
  16. 27
  17. muscular force
  18. True
  19. 5
  20. balanced
  21. 4
  22. a pull
  23. False
  24. 16
  25. False
  26. 540
  27. a push
  28. True
  29. 20
  30. True
  31. 60
  32. push or a pull
  33. 155
  34. muscular force
  35. no net force
  36. rubbing hands warms them
  37. gravity
  38. a thrown ball comes down
  39. 400
  40. 450

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