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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 648 · 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.💪 In a tug of war, one team pulls left with 90 N and the other pulls right with 55 N. What is the size of the net force, in newtons?
  2. 2.True or false: pulling a cart is a pull. (a) False (b) True
  3. 3.Which of these is caused by gravity? (a) a compass needle turns (b) a thrown ball comes down (c) a magnet picks up pins (d) brakes stop a bicycle
  4. 4.💪 In a tug of war, one team pulls left with 85 N and the other pulls right with 45 N. What is the size of the net force, in newtons?
  5. 5.💪 A bag has a mass of 4 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  6. 6.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
  7. 7.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  8. 8.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
  9. 9.💪 Two children push a box to the right, one with 65 N and the other with 55 N. What is the net (total) force on the box, in newtons?
  10. 10.💪 A force is a … (a) kind of colour (b) unit of time (c) type of sound (d) push or a pull
  11. 11.Which of these is caused by friction? (a) an apple falls down (b) a thrown ball comes down (c) brakes stop a bicycle (d) lifting a school bag
  12. 12.💪 In a tug of war, one team pulls right with 40 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
  13. 13.💪 A cart is pulled to the right with 30 N and to the left with 20 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
  14. 14.True or false: pushing a swing is a pull. (a) True (b) False
  15. 15.💪 A box weighs 50 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  16. 16.True or false: pulling up your socks is a pull. (a) False (b) True
  17. 17.💪 Which force is at work: a river flows downhill? (a) muscular force (b) magnetic force (c) gravity (d) friction
  18. 18.Which of these is caused by friction? (a) lifting a school bag (b) a fridge magnet sticks (c) shoes grip the floor (d) a thrown ball comes down
  19. 19.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) gravity (c) magnetic force (d) friction
  20. 20.💪 Which force is at work: rubbing hands warms them? (a) muscular force (b) friction (c) magnetic force (d) gravity
  21. 21.💪 Which force is at work: brakes stop a bicycle? (a) friction (b) gravity (c) magnetic force (d) muscular force
  22. 22.True or false: closing a drawer is a pull. (a) False (b) True
  23. 23.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  24. 24.Which of these is caused by gravity? (a) squeezing a lemon (b) a magnet picks up pins (c) a fridge magnet sticks (d) an apple falls down
  25. 25.💪 A cart is pulled to the right with 50 N and to the left with 65 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
  26. 26.True or false: drawing up a well bucket is a pull. (a) False (b) True
  27. 27.True or false: closing a drawer is a push. (a) False (b) True
  28. 28.💪 Which force is at work: a compass needle turns? (a) gravity (b) magnetic force (c) muscular force (d) friction
  29. 29.💪 In which unit do we measure force? (a) metre (m) (b) second (s) (c) newton (N) (d) litre (L)
  30. 30.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
  31. 31.💪 Which force pulls everything towards the Earth? (a) friction (b) wind (c) magnetism (d) gravity
  32. 32.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) muscular force (c) magnetic force (d) friction
  33. 33.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  34. 34.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
  35. 35.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) gravity (c) doubled (d) balanced
  36. 36.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
  37. 37.💪 Which can a force NOT do? (a) change its colour (b) change its shape (c) stop it moving (d) start it moving
  38. 38.💪 Two children push a box to the right, one with 55 N and the other with 30 N. What is the net (total) force on the box, in newtons?
  39. 39.Which of these is caused by magnetic force? (a) an apple falls down (b) shoes grip the floor (c) a river flows downhill (d) a fridge magnet sticks
  40. 40.💪 A box weighs 450 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?

Answer key

  1. 35
  2. True
  3. a thrown ball comes down
  4. 40
  5. 40
  6. a push
  7. a pull
  8. a pull
  9. 120
  10. push or a pull
  11. brakes stop a bicycle
  12. 15
  13. to the right
  14. False
  15. 5
  16. True
  17. gravity
  18. shoes grip the floor
  19. friction
  20. friction
  21. friction
  22. False
  23. a push
  24. an apple falls down
  25. to the left
  26. True
  27. True
  28. magnetic force
  29. newton (N)
  30. a push
  31. gravity
  32. gravity
  33. a push
  34. a push
  35. balanced
  36. a pull
  37. change its colour
  38. 85
  39. a fridge magnet sticks
  40. 45

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