Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 544 · 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 box weighs 240 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
2. 2.True or false: pulling up your socks is a push. (a) False (b) True
3. 3.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) muscular force (c) magnetic force (d) friction
4. 4.💪 In a tug of war, one team pulls right with 90 N and the other pulls left with 55 N. What is the size of the net force, in newtons?
5. 5.💪 In a tug of war, one team pulls left with 10 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
6. 6.True or false: hitting a cricket ball is a pull. (a) True (b) False
7. 7.💪 Two children push a box to the right, one with 10 N and the other with 15 N. What is the net (total) force on the box, in newtons?
8. 8.💪 Two children push a box to the right, one with 55 N and the other with 65 N. What is the net (total) force on the box, in newtons?
9. 9.True or false: pushing a trolley is a pull. (a) True (b) False
10. 10.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
11. 11.💪 Which force pulls everything towards the Earth? (a) friction (b) gravity (c) wind (d) magnetism
12. 12.True or false: kicking a football is a pull. (a) False (b) True
13. 13.💪 A box weighs 130 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
14. 14.💪 A bag has a mass of 54 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
15. 15.💪 Two children push a box to the right, one with 10 N and the other with 55 N. What is the net (total) force on the box, in newtons?
16. 16.💪 A box weighs 50 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
17. 17.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
18. 18.True or false: closing a drawer is a pull. (a) True (b) False
19. 19.Which of these is caused by gravity? (a) an apple falls down (b) a magnet picks up pins (c) a compass needle turns (d) shoes grip the floor
20. 20.💪 A bag has a mass of 27 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
21. 21.💪 Which force is at work: rubbing hands warms them? (a) magnetic force (b) muscular force (c) friction (d) gravity
22. 22.💪 Which force is at work: squeezing a lemon? (a) gravity (b) friction (c) muscular force (d) magnetic force
23. 23.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
24. 24.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
25. 25.💪 A force is a … (a) kind of colour (b) type of sound (c) push or a pull (d) unit of time
26. 26.Which of these is caused by muscular force? (a) a compass needle turns (b) pedalling a cycle (c) a rolling ball slows (d) a fridge magnet sticks
27. 27.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) magnetic force (c) muscular force (d) gravity
28. 28.💪 In a tug of war, one team pulls left with 80 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
29. 29.💪 Which can a force NOT do? (a) stop it moving (b) change its colour (c) start it moving (d) change its shape
30. 30.💪 A box weighs 110 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
31. 31.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
32. 32.💪 Two children push a box to the right, one with 95 N and the other with 5 N. What is the net (total) force on the box, in newtons?
33. 33.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
34. 34.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
35. 35.💪 In which unit do we measure force? (a) metre (m) (b) litre (L) (c) newton (N) (d) second (s)
36. 36.True or false: pressing a doorbell is a pull. (a) False (b) True
37. 37.True or false: hitting a cricket ball is a push. (a) True (b) False
38. 38.💪 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?
39. 39.💪 Which force is at work: a river flows downhill? (a) muscular force (b) magnetic force (c) gravity (d) friction
40. 40.💪 Two children push a box to the right, one with 35 N and the other with 85 N. What is the net (total) force on the box, in newtons?

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