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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 784 · 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 friction? (a) squeezing a lemon (b) rubbing hands warms them (c) a compass needle turns (d) a thrown ball comes down
  2. 2.True or false: pressing a doorbell is a pull. (a) True (b) False
  3. 3.Which of these is caused by gravity? (a) a magnet picks up pins (b) an apple falls down (c) pedalling a cycle (d) a fridge magnet sticks
  4. 4.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  5. 5.💪 In which unit do we measure force? (a) newton (N) (b) litre (L) (c) metre (m) (d) second (s)
  6. 6.💪 A box weighs 60 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  7. 7.💪 Which force is at work: pedalling a cycle? (a) muscular force (b) magnetic force (c) friction (d) gravity
  8. 8.True or false: pushing a trolley is a pull. (a) True (b) False
  9. 9.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) gravity (c) magnetic force (d) muscular force
  10. 10.Which of these is caused by magnetic force? (a) lifting a school bag (b) shoes grip the floor (c) a river flows downhill (d) a fridge magnet sticks
  11. 11.💪 A bag has a mass of 34 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  12. 12.💪 A box weighs 280 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  13. 13.💪 Which force is at work: a compass needle turns? (a) magnetic force (b) muscular force (c) friction (d) gravity
  14. 14.True or false: drawing up a well bucket is a pull. (a) True (b) False
  15. 15.True or false: pulling up your socks is a pull. (a) True (b) False
  16. 16.Which of these is caused by friction? (a) rain falls to the ground (b) shoes grip the floor (c) pedalling a cycle (d) a river flows downhill
  17. 17.💪 Which force is at work: rain falls to the ground? (a) friction (b) gravity (c) muscular force (d) magnetic force
  18. 18.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  19. 19.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  20. 20.💪 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?
  21. 21.💪 A cart is pulled to the right with 30 N and to the left with 40 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  22. 22.💪 A box weighs 10 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  23. 23.💪 Two children push a box to the right, one with 25 N and the other with 60 N. What is the net (total) force on the box, in newtons?
  24. 24.💪 Which force is at work: lifting a school bag? (a) gravity (b) magnetic force (c) muscular force (d) friction
  25. 25.Which of these is caused by magnetic force? (a) a thrown ball comes down (b) brakes stop a bicycle (c) a compass needle turns (d) squeezing a lemon
  26. 26.💪 A box weighs 180 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  27. 27.💪 Two children push a box to the right, one with 35 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  28. 28.💪 A box weighs 290 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  29. 29.💪 Which can a force NOT do? (a) start it moving (b) change its colour (c) change its shape (d) stop it moving
  30. 30.💪 Two children push a box to the right, one with 80 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  31. 31.💪 A box weighs 120 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  32. 32.💪 A bag has a mass of 47 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  33. 33.💪 A bag has a mass of 59 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  34. 34.💪 A bag has a mass of 20 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  35. 35.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  36. 36.💪 A box weighs 200 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  37. 37.True or false: pulling a cart is a push. (a) True (b) False
  38. 38.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
  39. 39.True or false: pressing a doorbell is a push. (a) False (b) True
  40. 40.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) gravity (c) friction (d) muscular force

Answer key

  1. rubbing hands warms them
  2. False
  3. an apple falls down
  4. a pull
  5. newton (N)
  6. 6
  7. muscular force
  8. False
  9. magnetic force
  10. a fridge magnet sticks
  11. 340
  12. 28
  13. magnetic force
  14. True
  15. True
  16. shoes grip the floor
  17. gravity
  18. a push
  19. 20
  20. 95
  21. to the left
  22. 1
  23. 85
  24. muscular force
  25. a compass needle turns
  26. 18
  27. 50
  28. 29
  29. change its colour
  30. 95
  31. 12
  32. 470
  33. 590
  34. 200
  35. a push
  36. 20
  37. False
  38. a push
  39. True
  40. friction

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