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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 490 · 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 10 N and the other with 20 N. What is the net (total) force on the box, in newtons?
  2. 2.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
  3. 3.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  4. 4.💪 Which force is at work: a thrown ball comes down? (a) friction (b) muscular force (c) magnetic force (d) gravity
  5. 5.Which of these is caused by gravity? (a) a magnet picks up pins (b) squeezing a lemon (c) an apple falls down (d) a rolling ball slows
  6. 6.Which of these is caused by magnetic force? (a) lifting a school bag (b) a fridge magnet sticks (c) rain falls to the ground (d) a thrown ball comes down
  7. 7.💪 Which force pulls everything towards the Earth? (a) magnetism (b) gravity (c) wind (d) friction
  8. 8.Which of these is caused by muscular force? (a) squeezing a lemon (b) a thrown ball comes down (c) shoes grip the floor (d) an apple falls down
  9. 9.True or false: kicking a football is a pull. (a) True (b) False
  10. 10.True or false: pulling up your socks is a push. (a) False (b) True
  11. 11.💪 A bag has a mass of 19 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  12. 12.💪 In a tug of war, one team pulls left with 15 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
  13. 13.💪 A bag has a mass of 13 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  14. 14.True or false: plucking a mango is a pull. (a) True (b) False
  15. 15.💪 A bag has a mass of 34 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  16. 16.True or false: kicking a football is a push. (a) True (b) False
  17. 17.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) magnetic force (c) friction (d) gravity
  18. 18.💪 A cart is pulled to the right with 70 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
  19. 19.💪 A box weighs 200 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  20. 20.True or false: hitting a cricket ball is a pull. (a) True (b) False
  21. 21.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) gravity (c) unbalanced (d) balanced
  22. 22.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  23. 23.💪 Which can a force NOT do? (a) change its colour (b) start it moving (c) stop it moving (d) change its shape
  24. 24.True or false: a tug of war is a pull. (a) False (b) True
  25. 25.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
  26. 26.💪 A box weighs 180 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  27. 27.💪 A force is a … (a) type of sound (b) unit of time (c) kind of colour (d) push or a pull
  28. 28.💪 Two children push a box to the right, one with 60 N and the other with 10 N. What is the net (total) force on the box, in newtons?
  29. 29.True or false: opening a drawer is a pull. (a) False (b) True
  30. 30.💪 Two children push a box to the right, one with 20 N and the other with 60 N. What is the net (total) force on the box, in newtons?
  31. 31.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  32. 32.True or false: closing a drawer is a push. (a) True (b) False
  33. 33.Which of these is caused by muscular force? (a) an apple falls down (b) a rolling ball slows (c) lifting a school bag (d) a river flows downhill
  34. 34.💪 Which force is at work: a fridge magnet sticks? (a) gravity (b) magnetic force (c) muscular force (d) friction
  35. 35.💪 A bag has a mass of 53 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  36. 36.True or false: pulling up your socks is a pull. (a) False (b) True
  37. 37.Which of these is caused by muscular force? (a) pedalling a cycle (b) rubbing hands warms them (c) a fridge magnet sticks (d) a river flows downhill
  38. 38.💪 Which force is at work: a river flows downhill? (a) gravity (b) friction (c) magnetic force (d) muscular force
  39. 39.💪 Which force is at work: brakes stop a bicycle? (a) muscular force (b) magnetic force (c) gravity (d) friction
  40. 40.Which of these is caused by magnetic force? (a) a thrown ball comes down (b) a rolling ball slows (c) a magnet picks up pins (d) pedalling a cycle

Answer key

  1. 30
  2. a push
  3. a pull
  4. gravity
  5. an apple falls down
  6. a fridge magnet sticks
  7. gravity
  8. squeezing a lemon
  9. False
  10. False
  11. 190
  12. 10
  13. 130
  14. True
  15. 340
  16. True
  17. gravity
  18. to the left
  19. 20
  20. False
  21. balanced
  22. a pull
  23. change its colour
  24. True
  25. a push
  26. 18
  27. push or a pull
  28. 70
  29. True
  30. 80
  31. a push
  32. True
  33. lifting a school bag
  34. magnetic force
  35. 530
  36. True
  37. pedalling a cycle
  38. gravity
  39. friction
  40. a magnet picks up pins

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