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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 263 · 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 force is at work: rubbing hands warms them? (a) friction (b) magnetic force (c) gravity (d) muscular force
  2. 2.💪 Which can a force NOT do? (a) change its shape (b) stop it moving (c) change its colour (d) start it moving
  3. 3.💪 Which force is at work: squeezing a lemon? (a) gravity (b) magnetic force (c) muscular force (d) friction
  4. 4.💪 Which force pulls everything towards the Earth? (a) wind (b) friction (c) magnetism (d) gravity
  5. 5.Which of these is caused by friction? (a) pedalling a cycle (b) lifting a school bag (c) a rolling ball slows (d) a thrown ball comes down
  6. 6.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
  7. 7.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
  8. 8.💪 A cart is pulled to the right with 95 N and to the left with 90 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  9. 9.💪 Which force is at work: rain falls to the ground? (a) friction (b) gravity (c) muscular force (d) magnetic force
  10. 10.True or false: opening a drawer is a push. (a) True (b) False
  11. 11.Which of these is caused by muscular force? (a) a magnet picks up pins (b) rubbing hands warms them (c) pedalling a cycle (d) rain falls to the ground
  12. 12.True or false: hitting a cricket ball is a pull. (a) False (b) True
  13. 13.💪 A box weighs 590 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  14. 14.💪 A box weighs 540 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  15. 15.💪 A bag has a mass of 23 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  16. 16.True or false: pulling a cart is a pull. (a) True (b) False
  17. 17.💪 Two children push a box to the right, one with 50 N and the other with 65 N. What is the net (total) force on the box, in newtons?
  18. 18.True or false: hitting a cricket ball is a push. (a) True (b) False
  19. 19.💪 Two children push a box to the right, one with 10 N and the other with 90 N. What is the net (total) force on the box, in newtons?
  20. 20.💪 Two children push a box to the right, one with 50 N and the other with 45 N. What is the net (total) force on the box, in newtons?
  21. 21.True or false: drawing up a well bucket is a pull. (a) True (b) False
  22. 22.💪 Which force is at work: brakes stop a bicycle? (a) muscular force (b) friction (c) magnetic force (d) gravity
  23. 23.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  24. 24.Which of these is caused by friction? (a) rubbing hands warms them (b) a river flows downhill (c) a magnet picks up pins (d) squeezing a lemon
  25. 25.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
  26. 26.💪 Which force is at work: lifting a school bag? (a) gravity (b) magnetic force (c) friction (d) muscular force
  27. 27.Which of these is caused by magnetic force? (a) pedalling a cycle (b) shoes grip the floor (c) an apple falls down (d) a fridge magnet sticks
  28. 28.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) balanced (c) doubled (d) gravity
  29. 29.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) gravity (c) muscular force (d) friction
  30. 30.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
  31. 31.💪 Two children push a box to the right, one with 5 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  32. 32.💪 A force is a … (a) kind of colour (b) push or a pull (c) type of sound (d) unit of time
  33. 33.True or false: kicking a football is a push. (a) False (b) True
  34. 34.💪 A cart is pulled to the right with 80 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
  35. 35.Which of these is caused by gravity? (a) rubbing hands warms them (b) shoes grip the floor (c) a river flows downhill (d) a magnet picks up pins
  36. 36.💪 A cart is pulled to the right with 85 N and to the left with 95 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
  37. 37.True or false: pushing a trolley is a pull. (a) True (b) False
  38. 38.True or false: pushing a swing is a pull. (a) False (b) True
  39. 39.Which of these is caused by friction? (a) a fridge magnet sticks (b) squeezing a lemon (c) brakes stop a bicycle (d) a river flows downhill
  40. 40.Which of these is caused by friction? (a) shoes grip the floor (b) squeezing a lemon (c) a thrown ball comes down (d) a compass needle turns

Answer key

  1. friction
  2. change its colour
  3. muscular force
  4. gravity
  5. a rolling ball slows
  6. a pull
  7. 40
  8. to the right
  9. gravity
  10. False
  11. pedalling a cycle
  12. False
  13. 59
  14. 54
  15. 230
  16. True
  17. 115
  18. True
  19. 100
  20. 95
  21. True
  22. friction
  23. a pull
  24. rubbing hands warms them
  25. a pull
  26. muscular force
  27. a fridge magnet sticks
  28. balanced
  29. gravity
  30. a pull
  31. 20
  32. push or a pull
  33. True
  34. to the right
  35. a river flows downhill
  36. to the left
  37. False
  38. False
  39. brakes stop a bicycle
  40. shoes grip the floor

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