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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 435 · 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.💪 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?
  2. 2.💪 Which force is at work: a magnet picks up pins? (a) muscular force (b) friction (c) gravity (d) magnetic force
  3. 3.💪 A cart is pulled to the right with 65 N and to the left with 75 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  4. 4.Which of these is caused by gravity? (a) a thrown ball comes down (b) pedalling a cycle (c) a compass needle turns (d) a fridge magnet sticks
  5. 5.💪 Two children push a box to the right, one with 75 N and the other with 35 N. What is the net (total) force on the box, in newtons?
  6. 6.💪 In which unit do we measure force? (a) newton (N) (b) second (s) (c) litre (L) (d) metre (m)
  7. 7.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) gravity (c) friction (d) muscular force
  8. 8.💪 A box weighs 300 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  9. 9.Which of these is caused by friction? (a) a magnet picks up pins (b) lifting a school bag (c) shoes grip the floor (d) a compass needle turns
  10. 10.💪 Which can a force NOT do? (a) change its colour (b) stop it moving (c) change its shape (d) start it moving
  11. 11.💪 A box weighs 90 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  12. 12.True or false: pulling up your socks is a push. (a) True (b) False
  13. 13.True or false: kicking a football is a pull. (a) True (b) False
  14. 14.True or false: opening a drawer is a pull. (a) False (b) True
  15. 15.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) a rolling ball slows (c) pedalling a cycle (d) shoes grip the floor
  16. 16.💪 Which force is at work: brakes stop a bicycle? (a) gravity (b) muscular force (c) magnetic force (d) friction
  17. 17.💪 A bag has a mass of 34 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  18. 18.💪 Which force is at work: a river flows downhill? (a) muscular force (b) magnetic force (c) friction (d) gravity
  19. 19.True or false: kicking a football is a push. (a) False (b) True
  20. 20.💪 A cart is pulled to the right with 65 N and to the left with 70 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  21. 21.Which of these is caused by magnetic force? (a) pedalling a cycle (b) a fridge magnet sticks (c) rubbing hands warms them (d) an apple falls down
  22. 22.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  23. 23.💪 Two children push a box to the right, one with 15 N and the other with 30 N. What is the net (total) force on the box, in newtons?
  24. 24.💪 In a tug of war, one team pulls right with 80 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
  25. 25.💪 Two children push a box to the right, one with 100 N and the other with 5 N. What is the net (total) force on the box, in newtons?
  26. 26.💪 Which force is at work: a compass needle turns? (a) friction (b) magnetic force (c) muscular force (d) gravity
  27. 27.True or false: drawing up a well bucket is a push. (a) True (b) False
  28. 28.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  29. 29.💪 Which force is at work: lifting a school bag? (a) muscular force (b) magnetic force (c) gravity (d) friction
  30. 30.💪 A bag has a mass of 23 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  31. 31.💪 Two children push a box to the right, one with 45 N and the other with 95 N. What is the net (total) force on the box, in newtons?
  32. 32.💪 A force is a … (a) unit of time (b) kind of colour (c) type of sound (d) push or a pull
  33. 33.💪 In a tug of war, one team pulls right with 95 N and the other pulls left with 70 N. What is the size of the net force, in newtons?
  34. 34.💪 In a tug of war, one team pulls left with 10 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  35. 35.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  36. 36.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) magnetic force (c) gravity (d) friction
  37. 37.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) doubled (c) gravity (d) unbalanced
  38. 38.💪 In a tug of war, one team pulls right with 70 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
  39. 39.💪 In a tug of war, one team pulls right with 25 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
  40. 40.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push

Answer key

  1. 45
  2. magnetic force
  3. to the left
  4. a thrown ball comes down
  5. 110
  6. newton (N)
  7. gravity
  8. 30
  9. shoes grip the floor
  10. change its colour
  11. 9
  12. False
  13. False
  14. True
  15. pedalling a cycle
  16. friction
  17. 340
  18. gravity
  19. True
  20. to the left
  21. a fridge magnet sticks
  22. a push
  23. 45
  24. 70
  25. 105
  26. magnetic force
  27. False
  28. a push
  29. muscular force
  30. 230
  31. 140
  32. push or a pull
  33. 25
  34. 5
  35. a pull
  36. gravity
  37. balanced
  38. 55
  39. 10
  40. a push

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