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Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 548 · 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: a thrown ball comes down? (a) gravity (b) friction (c) magnetic force (d) muscular force
  2. 2.💪 Which force is at work: pedalling a cycle? (a) magnetic force (b) friction (c) muscular force (d) gravity
  3. 3.Which of these is caused by muscular force? (a) shoes grip the floor (b) squeezing a lemon (c) a magnet picks up pins (d) brakes stop a bicycle
  4. 4.Which of these is caused by friction? (a) a magnet picks up pins (b) a fridge magnet sticks (c) a thrown ball comes down (d) shoes grip the floor
  5. 5.True or false: pushing a swing is a push. (a) False (b) True
  6. 6.💪 A box weighs 390 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  7. 7.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
  8. 8.💪 Two children push a box to the right, one with 75 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  9. 9.💪 A cart is pulled to the right with 80 N and to the left with 75 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
  10. 10.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
  11. 11.💪 Two children push a box to the right, one with 20 N and the other with 15 N. What is the net (total) force on the box, in newtons?
  12. 12.Which of these is caused by gravity? (a) lifting a school bag (b) an apple falls down (c) brakes stop a bicycle (d) rubbing hands warms them
  13. 13.True or false: a tug of war is a pull. (a) False (b) True
  14. 14.💪 Two children push a box to the right, one with 45 N and the other with 25 N. What is the net (total) force on the box, in newtons?
  15. 15.💪 A box weighs 190 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  16. 16.Which of these is caused by muscular force? (a) a magnet picks up pins (b) pedalling a cycle (c) a rolling ball slows (d) a thrown ball comes down
  17. 17.💪 A force is a … (a) unit of time (b) push or a pull (c) type of sound (d) kind of colour
  18. 18.Which of these is caused by magnetic force? (a) pedalling a cycle (b) lifting a school bag (c) a magnet picks up pins (d) shoes grip the floor
  19. 19.Which of these is caused by gravity? (a) a fridge magnet sticks (b) rain falls to the ground (c) lifting a school bag (d) shoes grip the floor
  20. 20.💪 Which force pulls everything towards the Earth? (a) friction (b) wind (c) gravity (d) magnetism
  21. 21.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
  22. 22.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
  23. 23.Which of these is caused by friction? (a) a compass needle turns (b) a river flows downhill (c) rubbing hands warms them (d) an apple falls down
  24. 24.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
  25. 25.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
  26. 26.💪 Which can a force NOT do? (a) start it moving (b) change its colour (c) change its shape (d) stop it moving
  27. 27.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) unbalanced (c) gravity (d) balanced
  28. 28.True or false: hitting a cricket ball is a push. (a) False (b) True
  29. 29.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) friction (c) gravity (d) muscular force
  30. 30.💪 Which force is at work: brakes stop a bicycle? (a) muscular force (b) friction (c) gravity (d) magnetic force
  31. 31.💪 A bag has a mass of 38 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  32. 32.💪 Which force is at work: lifting a school bag? (a) friction (b) gravity (c) muscular force (d) magnetic force
  33. 33.💪 A box weighs 120 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  34. 34.💪 Which force is at work: a rolling ball slows? (a) magnetic force (b) muscular force (c) friction (d) gravity
  35. 35.Which of these is caused by muscular force? (a) lifting a school bag (b) shoes grip the floor (c) a river flows downhill (d) a fridge magnet sticks
  36. 36.💪 In a tug of war, one team pulls right with 95 N and the other pulls left with 50 N. What is the size of the net force, in newtons?
  37. 37.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
  38. 38.True or false: kicking a football is a push. (a) False (b) True
  39. 39.True or false: pulling a cart is a push. (a) True (b) False
  40. 40.💪 Which force is at work: shoes grip the floor? (a) gravity (b) muscular force (c) friction (d) magnetic force

Answer key

  1. gravity
  2. muscular force
  3. squeezing a lemon
  4. shoes grip the floor
  5. True
  6. 39
  7. a pull
  8. 100
  9. to the right
  10. a push
  11. 35
  12. an apple falls down
  13. True
  14. 70
  15. 19
  16. pedalling a cycle
  17. push or a pull
  18. a magnet picks up pins
  19. rain falls to the ground
  20. gravity
  21. 20
  22. a push
  23. rubbing hands warms them
  24. a pull
  25. a push
  26. change its colour
  27. balanced
  28. True
  29. gravity
  30. friction
  31. 380
  32. muscular force
  33. 12
  34. friction
  35. lifting a school bag
  36. 45
  37. a pull
  38. True
  39. False
  40. friction

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