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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 162 · 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: pulling a cart is a pull. (a) True (b) False
  2. 2.💪 Which can a force NOT do? (a) stop it moving (b) change its colour (c) start it moving (d) change its shape
  3. 3.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
  4. 4.Which of these is caused by magnetic force? (a) a compass needle turns (b) rubbing hands warms them (c) rain falls to the ground (d) a thrown ball comes down
  5. 5.💪 A cart is pulled to the right with 25 N and to the left with 25 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  6. 6.Which of these is caused by muscular force? (a) a thrown ball comes down (b) a magnet picks up pins (c) shoes grip the floor (d) squeezing a lemon
  7. 7.Which of these is caused by muscular force? (a) lifting a school bag (b) rain falls to the ground (c) brakes stop a bicycle (d) a thrown ball comes down
  8. 8.True or false: hitting a cricket ball is a pull. (a) False (b) True
  9. 9.Which of these is caused by friction? (a) squeezing a lemon (b) shoes grip the floor (c) pedalling a cycle (d) rain falls to the ground
  10. 10.💪 In a tug of war, one team pulls left with 75 N and the other pulls right with 50 N. What is the size of the net force, in newtons?
  11. 11.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) pedalling a cycle (c) squeezing a lemon (d) a fridge magnet sticks
  12. 12.💪 A cart is pulled to the right with 70 N and to the left with 85 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  13. 13.💪 Which force is at work: pedalling a cycle? (a) magnetic force (b) muscular force (c) friction (d) gravity
  14. 14.💪 A force is a … (a) unit of time (b) type of sound (c) push or a pull (d) kind of colour
  15. 15.💪 Which force is at work: brakes stop a bicycle? (a) muscular force (b) gravity (c) magnetic force (d) friction
  16. 16.💪 A cart is pulled to the right with 75 N and to the left with 65 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
  17. 17.Which of these is caused by muscular force? (a) a rolling ball slows (b) brakes stop a bicycle (c) a magnet picks up pins (d) pedalling a cycle
  18. 18.True or false: pushing a trolley is a pull. (a) True (b) False
  19. 19.💪 Which force pulls everything towards the Earth? (a) wind (b) gravity (c) magnetism (d) friction
  20. 20.Which of these is caused by gravity? (a) shoes grip the floor (b) an apple falls down (c) a compass needle turns (d) brakes stop a bicycle
  21. 21.True or false: pushing a swing is a push. (a) True (b) False
  22. 22.💪 A box weighs 510 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  23. 23.Which of these is caused by gravity? (a) squeezing a lemon (b) brakes stop a bicycle (c) a fridge magnet sticks (d) rain falls to the ground
  24. 24.True or false: a tug of war is a pull. (a) False (b) True
  25. 25.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) gravity (c) magnetic force (d) friction
  26. 26.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
  27. 27.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) gravity (c) magnetic force (d) friction
  28. 28.💪 Which force is at work: an apple falls down? (a) muscular force (b) gravity (c) magnetic force (d) friction
  29. 29.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  30. 30.True or false: kicking a football is a pull. (a) True (b) False
  31. 31.💪 Which force is at work: rubbing hands warms them? (a) friction (b) muscular force (c) gravity (d) magnetic force
  32. 32.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  33. 33.💪 Two children push a box to the right, one with 45 N and the other with 30 N. What is the net (total) force on the box, in newtons?
  34. 34.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
  35. 35.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) balanced (c) doubled (d) gravity
  36. 36.💪 A box weighs 450 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  37. 37.💪 Which force is at work: a magnet picks up pins? (a) magnetic force (b) gravity (c) muscular force (d) friction
  38. 38.💪 A cart is pulled to the right with 90 N and to the left with 80 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
  39. 39.💪 Which force is at work: lifting a school bag? (a) muscular force (b) magnetic force (c) friction (d) gravity
  40. 40.💪 A box weighs 350 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?

Answer key

  1. True
  2. change its colour
  3. a push
  4. a compass needle turns
  5. no net force
  6. squeezing a lemon
  7. lifting a school bag
  8. False
  9. shoes grip the floor
  10. 25
  11. a fridge magnet sticks
  12. to the left
  13. muscular force
  14. push or a pull
  15. friction
  16. to the right
  17. pedalling a cycle
  18. False
  19. gravity
  20. an apple falls down
  21. True
  22. 51
  23. rain falls to the ground
  24. True
  25. magnetic force
  26. a pull
  27. friction
  28. gravity
  29. a push
  30. False
  31. friction
  32. a pull
  33. 75
  34. a pull
  35. balanced
  36. 45
  37. magnetic force
  38. to the right
  39. muscular force
  40. 35

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