Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 141 · 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 gravity? (a) brakes stop a bicycle (b) squeezing a lemon (c) an apple falls down (d) lifting a school bag
2. 2.💪 Which force pulls everything towards the Earth? (a) magnetism (b) wind (c) friction (d) gravity
3. 3.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
4. 4.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
5. 5.💪 A cart is pulled to the right with 80 N and to the left with 95 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
6. 6.💪 In a tug of war, one team pulls left with 50 N and the other pulls right with 30 N. What is the size of the net force, in newtons?
7. 7.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
8. 8.💪 Which force is at work: squeezing a lemon? (a) gravity (b) friction (c) magnetic force (d) muscular force
9. 9.💪 Two children push a box to the right, one with 40 N and the other with 90 N. What is the net (total) force on the box, in newtons?
10. 10.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) balanced (c) gravity (d) doubled
11. 11.💪 Two children push a box to the right, one with 70 N and the other with 15 N. What is the net (total) force on the box, in newtons?
12. 12.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
13. 13.💪 Which force is at work: a rolling ball slows? (a) gravity (b) muscular force (c) magnetic force (d) friction
14. 14.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
15. 15.True or false: opening a drawer is a pull. (a) True (b) False
16. 16.💪 A box weighs 210 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
17. 17.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
18. 18.💪 A box weighs 570 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
19. 19.💪 A bag has a mass of 10 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
20. 20.True or false: pulling up your socks is a push. (a) True (b) False
21. 21.Which of these is caused by muscular force? (a) an apple falls down (b) a thrown ball comes down (c) rain falls to the ground (d) lifting a school bag
22. 22.True or false: pulling up your socks is a pull. (a) False (b) True
23. 23.💪 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?
24. 24.💪 Which force is at work: a fridge magnet sticks? (a) gravity (b) muscular force (c) magnetic force (d) friction
25. 25.True or false: closing a drawer is a pull. (a) False (b) True
26. 26.True or false: a tug of war is a push. (a) True (b) False
27. 27.True or false: pushing a swing is a push. (a) True (b) False
28. 28.Which of these is caused by friction? (a) a rolling ball slows (b) a magnet picks up pins (c) a compass needle turns (d) a river flows downhill
29. 29.💪 A box weighs 60 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
30. 30.True or false: kicking a football is a push. (a) True (b) False
31. 31.💪 Which force is at work: a compass needle turns? (a) muscular force (b) gravity (c) magnetic force (d) friction
32. 32.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
33. 33.True or false: hitting a cricket ball is a pull. (a) False (b) True
34. 34.💪 Which force is at work: rain falls to the ground? (a) friction (b) muscular force (c) gravity (d) magnetic force
35. 35.💪 In which unit do we measure force? (a) newton (N) (b) second (s) (c) metre (m) (d) litre (L)
36. 36.💪 Which force is at work: an apple falls down? (a) muscular force (b) magnetic force (c) gravity (d) friction
37. 37.💪 A bag has a mass of 8 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
38. 38.💪 A box weighs 20 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
39. 39.💪 In a tug of war, one team pulls right with 25 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
40. 40.💪 A bag has a mass of 18 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?

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