Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 296 · 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.💪 A bag has a mass of 4 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
2. 2.True or false: opening a drawer is a pull. (a) True (b) False
3. 3.💪 Which force pulls everything towards the Earth? (a) friction (b) gravity (c) wind (d) magnetism
4. 4.💪 A bag has a mass of 40 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
5. 5.💪 Two children push a box to the right, one with 35 N and the other with 80 N. What is the net (total) force on the box, in newtons?
6. 6.Which of these is caused by muscular force? (a) pedalling a cycle (b) a compass needle turns (c) a rolling ball slows (d) a river flows downhill
7. 7.True or false: opening a drawer is a push. (a) True (b) False
8. 8.💪 In a tug of war, one team pulls right with 70 N and the other pulls left with 30 N. What is the size of the net force, in newtons?
9. 9.💪 Two children push a box to the right, one with 25 N and the other with 10 N. What is the net (total) force on the box, in newtons?
10. 10.True or false: pushing a swing is a push. (a) True (b) False
11. 11.💪 In which unit do we measure force? (a) second (s) (b) metre (m) (c) litre (L) (d) newton (N)
12. 12.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
13. 13.True or false: drawing up a well bucket is a push. (a) True (b) False
14. 14.💪 Which can a force NOT do? (a) start it moving (b) stop it moving (c) change its shape (d) change its colour
15. 15.💪 A force is a … (a) push or a pull (b) kind of colour (c) unit of time (d) type of sound
16. 16.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
17. 17.💪 A bag has a mass of 14 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
18. 18.True or false: plucking a mango is a pull. (a) False (b) True
19. 19.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
20. 20.💪 Which force is at work: squeezing a lemon? (a) friction (b) magnetic force (c) gravity (d) muscular force
21. 21.💪 Which force is at work: rubbing hands warms them? (a) friction (b) magnetic force (c) muscular force (d) gravity
22. 22.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) friction (c) muscular force (d) gravity
23. 23.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
24. 24.💪 Which force is at work: an apple falls down? (a) gravity (b) muscular force (c) magnetic force (d) friction
25. 25.💪 A box weighs 190 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
26. 26.True or false: pushing a trolley is a pull. (a) False (b) True
27. 27.Which of these is caused by muscular force? (a) a thrown ball comes down (b) an apple falls down (c) squeezing a lemon (d) a magnet picks up pins
28. 28.Which of these is caused by muscular force? (a) a thrown ball comes down (b) a compass needle turns (c) lifting a school bag (d) a rolling ball slows
29. 29.💪 In a tug of war, one team pulls left with 85 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
30. 30.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
31. 31.True or false: drawing up a well bucket is a pull. (a) True (b) False
32. 32.💪 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) to the left (b) to the right (c) no net force
33. 33.💪 In a tug of war, one team pulls left with 45 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
34. 34.💪 In a tug of war, one team pulls left with 20 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
35. 35.💪 A bag has a mass of 8 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
36. 36.💪 Two children push a box to the right, one with 65 N and the other with 95 N. What is the net (total) force on the box, in newtons?
37. 37.💪 Which force is at work: shoes grip the floor? (a) friction (b) gravity (c) magnetic force (d) muscular force
38. 38.True or false: pressing a doorbell is a push. (a) True (b) False
39. 39.True or false: hitting a cricket ball is a pull. (a) True (b) False
40. 40.💪 A cart is pulled to the right with 55 N and to the left with 60 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force

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