Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 356 · 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 24 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
2. 2.💪 Which force is at work: a magnet picks up pins? (a) friction (b) gravity (c) muscular force (d) magnetic force
3. 3.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
4. 4.💪 Which can a force NOT do? (a) start it moving (b) stop it moving (c) change its colour (d) change its shape
5. 5.True or false: kicking a football is a pull. (a) False (b) True
6. 6.True or false: drawing up a well bucket is a pull. (a) True (b) False
7. 7.True or false: pressing a doorbell is a pull. (a) False (b) True
8. 8.💪 A force is a … (a) unit of time (b) push or a pull (c) kind of colour (d) type of sound
9. 9.💪 In a tug of war, one team pulls left with 85 N and the other pulls right with 30 N. What is the size of the net force, in newtons?
10. 10.💪 A cart is pulled to the right with 80 N and to the left with 90 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
11. 11.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) gravity (c) balanced (d) doubled
12. 12.Which of these is caused by gravity? (a) squeezing a lemon (b) a compass needle turns (c) pedalling a cycle (d) a river flows downhill
13. 13.💪 Two children push a box to the right, one with 75 N and the other with 35 N. What is the net (total) force on the box, in newtons?
14. 14.💪 Which force is at work: a compass needle turns? (a) muscular force (b) gravity (c) magnetic force (d) friction
15. 15.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
16. 16.💪 In a tug of war, one team pulls left with 75 N and the other pulls right with 40 N. What is the size of the net force, in newtons?
17. 17.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
18. 18.True or false: plucking a mango is a push. (a) True (b) False
19. 19.💪 Which force pulls everything towards the Earth? (a) friction (b) magnetism (c) wind (d) gravity
20. 20.💪 In a tug of war, one team pulls right with 15 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
21. 21.💪 Which force is at work: squeezing a lemon? (a) magnetic force (b) friction (c) muscular force (d) gravity
22. 22.💪 In a tug of war, one team pulls right with 100 N and the other pulls left with 75 N. What is the size of the net force, in newtons?
23. 23.Which of these is caused by friction? (a) a compass needle turns (b) a river flows downhill (c) an apple falls down (d) shoes grip the floor
24. 24.Which of these is caused by magnetic force? (a) squeezing a lemon (b) shoes grip the floor (c) a river flows downhill (d) a magnet picks up pins
25. 25.True or false: pulling up your socks is a pull. (a) False (b) True
26. 26.💪 A cart is pulled to the right with 50 N and to the left with 55 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
27. 27.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) muscular force (c) gravity (d) friction
28. 28.💪 In a tug of war, one team pulls right with 100 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
29. 29.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
30. 30.💪 Which force is at work: a rolling ball slows? (a) gravity (b) friction (c) magnetic force (d) muscular force
31. 31.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
32. 32.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
33. 33.Which of these is caused by gravity? (a) a magnet picks up pins (b) brakes stop a bicycle (c) squeezing a lemon (d) an apple falls down
34. 34.True or false: opening a drawer is a push. (a) True (b) False
35. 35.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) gravity (c) magnetic force (d) friction
36. 36.True or false: pushing a trolley is a push. (a) True (b) False
37. 37.💪 Two children push a box to the right, one with 50 N and the other with 55 N. What is the net (total) force on the box, in newtons?
38. 38.💪 A bag has a mass of 53 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
39. 39.💪 Which force is at work: an apple falls down? (a) muscular force (b) gravity (c) friction (d) magnetic force
40. 40.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull

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