Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 56 · 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.True or false: drawing up a well bucket is a push. (a) False (b) True
2. 2.💪 Two children push a box to the right, one with 60 N and the other with 15 N. What is the net (total) force on the box, in newtons?
3. 3.💪 Which force is at work: a magnet picks up pins? (a) muscular force (b) magnetic force (c) friction (d) gravity
4. 4.True or false: plucking a mango is a push. (a) False (b) True
5. 5.💪 Which force is at work: a compass needle turns? (a) magnetic force (b) friction (c) gravity (d) muscular force
6. 6.💪 Which can a force NOT do? (a) stop it moving (b) change its colour (c) change its shape (d) start it moving
7. 7.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
8. 8.💪 Which force is at work: brakes stop a bicycle? (a) gravity (b) magnetic force (c) friction (d) muscular force
9. 9.💪 A box weighs 510 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
10. 10.💪 Which force is at work: a river flows downhill? (a) muscular force (b) gravity (c) friction (d) magnetic force
11. 11.Which of these is caused by magnetic force? (a) squeezing a lemon (b) lifting a school bag (c) a fridge magnet sticks (d) a rolling ball slows
12. 12.💪 Two children push a box to the right, one with 60 N and the other with 90 N. What is the net (total) force on the box, in newtons?
13. 13.💪 Which force is at work: pedalling a cycle? (a) gravity (b) friction (c) muscular force (d) magnetic force
14. 14.💪 In a tug of war, one team pulls right with 80 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
15. 15.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
16. 16.💪 Which force is at work: rain falls to the ground? (a) friction (b) muscular force (c) gravity (d) magnetic force
17. 17.Which of these is caused by magnetic force? (a) pedalling a cycle (b) a rolling ball slows (c) a river flows downhill (d) a magnet picks up pins
18. 18.💪 A bag has a mass of 49 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
19. 19.💪 In a tug of war, one team pulls right with 20 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
20. 20.True or false: pushing a trolley is a pull. (a) False (b) True
21. 21.💪 Which force is at work: an apple falls down? (a) muscular force (b) magnetic force (c) friction (d) gravity
22. 22.Which of these is caused by muscular force? (a) pedalling a cycle (b) a fridge magnet sticks (c) a thrown ball comes down (d) rain falls to the ground
23. 23.💪 Two children push a box to the right, one with 45 N and the other with 100 N. What is the net (total) force on the box, in newtons?
24. 24.💪 In which unit do we measure force? (a) second (s) (b) newton (N) (c) litre (L) (d) metre (m)
25. 25.Which of these is caused by gravity? (a) a magnet picks up pins (b) rain falls to the ground (c) brakes stop a bicycle (d) rubbing hands warms them
26. 26.💪 A force is a … (a) kind of colour (b) type of sound (c) push or a pull (d) unit of time
27. 27.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) muscular force (c) friction (d) gravity
28. 28.💪 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?
29. 29.True or false: drawing up a well bucket is a pull. (a) True (b) False
30. 30.True or false: a tug of war is a push. (a) True (b) False
31. 31.💪 In a tug of war, one team pulls right with 95 N and the other pulls left with 60 N. What is the size of the net force, in newtons?
32. 32.True or false: hitting a cricket ball is a pull. (a) False (b) True
33. 33.💪 In a tug of war, one team pulls left with 90 N and the other pulls right with 55 N. What is the size of the net force, in newtons?
34. 34.💪 Two children push a box to the right, one with 100 N and the other with 35 N. What is the net (total) force on the box, in newtons?
35. 35.💪 Which force is at work: squeezing a lemon? (a) gravity (b) magnetic force (c) friction (d) muscular force
36. 36.True or false: a tug of war is a pull. (a) False (b) True
37. 37.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
38. 38.💪 In a tug of war, one team pulls right with 80 N and the other pulls left with 65 N. What is the size of the net force, in newtons?
39. 39.💪 Two children push a box to the right, one with 55 N and the other with 45 N. What is the net (total) force on the box, in newtons?
40. 40.💪 A box weighs 190 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?

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