Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 632 · 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.💪 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?
2. 2.Which of these is caused by magnetic force? (a) a river flows downhill (b) a rolling ball slows (c) a magnet picks up pins (d) a thrown ball comes down
3. 3.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) gravity (c) friction (d) muscular force
4. 4.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) muscular force (c) friction (d) magnetic force
5. 5.💪 Two children push a box to the right, one with 30 N and the other with 70 N. What is the net (total) force on the box, in newtons?
6. 6.True or false: a tug of war is a pull. (a) True (b) False
7. 7.💪 Which force is at work: a river flows downhill? (a) muscular force (b) gravity (c) friction (d) magnetic force
8. 8.True or false: pulling a cart is a pull. (a) False (b) True
9. 9.💪 Which force is at work: brakes stop a bicycle? (a) muscular force (b) magnetic force (c) friction (d) gravity
10. 10.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
11. 11.💪 Which force pulls everything towards the Earth? (a) gravity (b) magnetism (c) friction (d) wind
12. 12.💪 Which can a force NOT do? (a) start it moving (b) change its shape (c) stop it moving (d) change its colour
13. 13.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 30 N. What is the size of the net force, in newtons?
14. 14.💪 A box weighs 70 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
15. 15.💪 Which force is at work: an apple falls down? (a) magnetic force (b) friction (c) gravity (d) muscular force
16. 16.💪 A box weighs 520 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
17. 17.💪 Two children push a box to the right, one with 60 N and the other with 5 N. What is the net (total) force on the box, in newtons?
18. 18.💪 A bag has a mass of 43 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
19. 19.💪 In which unit do we measure force? (a) metre (m) (b) second (s) (c) litre (L) (d) newton (N)
20. 20.Which of these is caused by muscular force? (a) a river flows downhill (b) a thrown ball comes down (c) a rolling ball slows (d) squeezing a lemon
21. 21.💪 Two children push a box to the right, one with 25 N and the other with 75 N. What is the net (total) force on the box, in newtons?
22. 22.💪 Two children push a box to the right, one with 15 N and the other with 95 N. What is the net (total) force on the box, in newtons?
23. 23.💪 In a tug of war, one team pulls left with 40 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
24. 24.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
25. 25.💪 Which force is at work: a magnet picks up pins? (a) friction (b) magnetic force (c) gravity (d) muscular force
26. 26.💪 Two children push a box to the right, one with 100 N and the other with 30 N. What is the net (total) force on the box, in newtons?
27. 27.💪 A cart is pulled to the right with 30 N and to the left with 25 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
28. 28.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) gravity (c) magnetic force (d) friction
29. 29.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
30. 30.💪 A force is a … (a) type of sound (b) push or a pull (c) kind of colour (d) unit of time
31. 31.💪 A box weighs 250 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
32. 32.💪 A cart is pulled to the right with 55 N and to the left with 70 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
33. 33.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
34. 34.💪 Two children push a box to the right, one with 85 N and the other with 60 N. What is the net (total) force on the box, in newtons?
35. 35.Which of these is caused by magnetic force? (a) an apple falls down (b) rain falls to the ground (c) a compass needle turns (d) pedalling a cycle
36. 36.💪 A cart is pulled to the right with 60 N and to the left with 55 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
37. 37.💪 Two children push a box to the right, one with 85 N and the other with 40 N. What is the net (total) force on the box, in newtons?
38. 38.💪 Two children push a box to the right, one with 70 N and the other with 100 N. What is the net (total) force on the box, in newtons?
39. 39.💪 Two children push a box to the right, one with 85 N and the other with 70 N. What is the net (total) force on the box, in newtons?
40. 40.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push

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