Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 427 · 40 questions

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.

1. 1.Which of these is caused by friction? (a) lifting a school bag (b) an apple falls down (c) squeezing a lemon (d) rubbing hands warms them
2. 2.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
3. 3.Which of these is caused by magnetic force? (a) rain falls to the ground (b) squeezing a lemon (c) a thrown ball comes down (d) a compass needle turns
4. 4.Which of these is caused by muscular force? (a) a rolling ball slows (b) a thrown ball comes down (c) pedalling a cycle (d) an apple falls down
5. 5.💪 A cart is pulled to the right with 65 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
6. 6.💪 In a tug of war, one team pulls left with 45 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
7. 7.💪 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) to the right (b) no net force (c) to the left
8. 8.Which of these is caused by muscular force? (a) a thrown ball comes down (b) squeezing a lemon (c) a river flows downhill (d) shoes grip the floor
9. 9.💪 In which unit do we measure force? (a) second (s) (b) metre (m) (c) newton (N) (d) litre (L)
10. 10.Which of these is caused by magnetic force? (a) a rolling ball slows (b) rain falls to the ground (c) a river flows downhill (d) a magnet picks up pins
11. 11.💪 A force is a … (a) kind of colour (b) type of sound (c) push or a pull (d) unit of time
12. 12.True or false: pressing a doorbell is a push. (a) True (b) False
13. 13.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) unbalanced (c) balanced (d) doubled
14. 14.💪 Which force pulls everything towards the Earth? (a) friction (b) wind (c) magnetism (d) gravity
15. 15.💪 In a tug of war, one team pulls left with 85 N and the other pulls right with 70 N. What is the size of the net force, in newtons?
16. 16.💪 A box weighs 440 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
17. 17.💪 In a tug of war, one team pulls right with 30 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
18. 18.💪 In a tug of war, one team pulls left with 20 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
19. 19.💪 A bag has a mass of 45 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
20. 20.💪 Which force is at work: an apple falls down? (a) gravity (b) magnetic force (c) friction (d) muscular force
21. 21.True or false: hitting a cricket ball is a push. (a) True (b) False
22. 22.💪 In a tug of war, one team pulls left with 40 N and the other pulls right with 30 N. What is the size of the net force, in newtons?
23. 23.💪 Which can a force NOT do? (a) change its colour (b) stop it moving (c) start it moving (d) change its shape
24. 24.True or false: closing a drawer is a push. (a) False (b) True
25. 25.💪 Which force is at work: lifting a school bag? (a) muscular force (b) magnetic force (c) friction (d) gravity
26. 26.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) magnetic force (c) friction (d) gravity
27. 27.💪 Which force is at work: a magnet picks up pins? (a) magnetic force (b) friction (c) gravity (d) muscular force
28. 28.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) friction (c) gravity (d) muscular force
29. 29.💪 A bag has a mass of 38 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
30. 30.💪 A bag has a mass of 18 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
31. 31.True or false: pulling a cart is a push. (a) True (b) False
32. 32.💪 Which force is at work: a river flows downhill? (a) friction (b) magnetic force (c) gravity (d) muscular force
33. 33.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
34. 34.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
35. 35.Which of these is caused by gravity? (a) brakes stop a bicycle (b) squeezing a lemon (c) a fridge magnet sticks (d) a thrown ball comes down
36. 36.True or false: plucking a mango is a push. (a) False (b) True
37. 37.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
38. 38.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) a river flows downhill (c) a fridge magnet sticks (d) a rolling ball slows
39. 39.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
40. 40.True or false: pressing a doorbell is a pull. (a) False (b) True

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