Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 193 · 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.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) gravity (c) unbalanced (d) doubled
2. 2.Which of these is caused by friction? (a) an apple falls down (b) a compass needle turns (c) a rolling ball slows (d) a river flows downhill
3. 3.True or false: closing a drawer is a pull. (a) True (b) False
4. 4.💪 Which force is at work: rubbing hands warms them? (a) muscular force (b) gravity (c) friction (d) magnetic force
5. 5.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) gravity (c) friction (d) magnetic force
6. 6.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
7. 7.💪 A box weighs 330 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
8. 8.Which of these is caused by gravity? (a) a compass needle turns (b) rain falls to the ground (c) shoes grip the floor (d) pedalling a cycle
9. 9.True or false: hitting a cricket ball is a pull. (a) False (b) True
10. 10.True or false: closing a drawer is a push. (a) False (b) True
11. 11.True or false: plucking a mango is a pull. (a) True (b) False
12. 12.💪 A bag has a mass of 41 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
13. 13.True or false: pressing a doorbell is a push. (a) False (b) True
14. 14.True or false: pulling a cart is a push. (a) False (b) True
15. 15.Which of these is caused by gravity? (a) lifting a school bag (b) a magnet picks up pins (c) a compass needle turns (d) a river flows downhill
16. 16.💪 In which unit do we measure force? (a) litre (L) (b) second (s) (c) newton (N) (d) metre (m)
17. 17.💪 Two children push a box to the right, one with 20 N and the other with 100 N. What is the net (total) force on the box, in newtons?
18. 18.Which of these is caused by magnetic force? (a) rubbing hands warms them (b) rain falls to the ground (c) a river flows downhill (d) a magnet picks up pins
19. 19.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) a rolling ball slows (c) lifting a school bag (d) a magnet picks up pins
20. 20.True or false: hitting a cricket ball is a push. (a) True (b) False
21. 21.Which of these is caused by muscular force? (a) a thrown ball comes down (b) an apple falls down (c) pedalling a cycle (d) a magnet picks up pins
22. 22.True or false: plucking a mango is a push. (a) True (b) False
23. 23.💪 A cart is pulled to the right with 65 N and to the left with 50 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
24. 24.💪 Which force is at work: a river flows downhill? (a) friction (b) muscular force (c) gravity (d) magnetic force
25. 25.💪 Which force pulls everything towards the Earth? (a) wind (b) friction (c) magnetism (d) gravity
26. 26.💪 Which force is at work: an apple falls down? (a) friction (b) muscular force (c) gravity (d) magnetic force
27. 27.💪 In a tug of war, one team pulls right with 10 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
28. 28.💪 A bag has a mass of 30 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
29. 29.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) magnetic force (c) friction (d) muscular force
30. 30.True or false: opening a drawer is a pull. (a) True (b) False
31. 31.True or false: pulling up your socks is a pull. (a) True (b) False
32. 32.💪 In a tug of war, one team pulls right with 40 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
33. 33.💪 A bag has a mass of 37 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
34. 34.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
35. 35.💪 A bag has a mass of 54 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
36. 36.💪 In a tug of war, one team pulls left with 100 N and the other pulls right with 40 N. What is the size of the net force, in newtons?
37. 37.💪 A cart is pulled to the right with 25 N and to the left with 20 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
38. 38.💪 A bag has a mass of 39 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
39. 39.💪 Which force is at work: rain falls to the ground? (a) friction (b) gravity (c) magnetic force (d) muscular force
40. 40.True or false: pushing a trolley is a pull. (a) False (b) True

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