Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 230 · 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 90 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
2. 2.💪 Two children push a box to the right, one with 30 N and the other with 30 N. What is the net (total) force on the box, in newtons?
3. 3.💪 Two children push a box to the right, one with 45 N and the other with 90 N. What is the net (total) force on the box, in newtons?
4. 4.True or false: pushing a trolley is a pull. (a) False (b) True
5. 5.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
6. 6.True or false: closing a drawer is a push. (a) True (b) False
7. 7.True or false: pressing a doorbell is a push. (a) False (b) True
8. 8.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
9. 9.💪 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?
10. 10.Which of these is caused by gravity? (a) brakes stop a bicycle (b) a magnet picks up pins (c) a river flows downhill (d) pedalling a cycle
11. 11.💪 In which unit do we measure force? (a) metre (m) (b) litre (L) (c) newton (N) (d) second (s)
12. 12.True or false: drawing up a well bucket is a pull. (a) False (b) True
13. 13.💪 A force is a … (a) kind of colour (b) push or a pull (c) unit of time (d) type of sound
14. 14.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
15. 15.True or false: plucking a mango is a pull. (a) True (b) False
16. 16.💪 Two children push a box to the right, one with 5 N and the other with 15 N. What is the net (total) force on the box, in newtons?
17. 17.💪 Two children push a box to the right, one with 60 N and the other with 35 N. What is the net (total) force on the box, in newtons?
18. 18.True or false: hitting a cricket ball is a pull. (a) False (b) True
19. 19.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) gravity (c) magnetic force (d) friction
20. 20.💪 Which force is at work: lifting a school bag? (a) friction (b) gravity (c) magnetic force (d) muscular force
21. 21.💪 A bag has a mass of 57 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
22. 22.Which of these is caused by muscular force? (a) a compass needle turns (b) a rolling ball slows (c) pedalling a cycle (d) an apple falls down
23. 23.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
24. 24.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) friction (c) muscular force (d) magnetic force
25. 25.💪 A cart is pulled to the right with 25 N and to the left with 25 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
26. 26.💪 Which force is at work: brakes stop a bicycle? (a) magnetic force (b) gravity (c) muscular force (d) friction
27. 27.💪 A bag has a mass of 45 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
28. 28.💪 Which force pulls everything towards the Earth? (a) wind (b) friction (c) gravity (d) magnetism
29. 29.💪 A bag has a mass of 1 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
30. 30.Which of these is caused by magnetic force? (a) a compass needle turns (b) pedalling a cycle (c) a thrown ball comes down (d) a river flows downhill
31. 31.💪 A box weighs 580 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
32. 32.True or false: closing a drawer is a pull. (a) True (b) False
33. 33.💪 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?
34. 34.True or false: pulling a cart is a pull. (a) True (b) False
35. 35.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
36. 36.💪 A cart is pulled to the right with 35 N and to the left with 20 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
37. 37.💪 A cart is pulled to the right with 40 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
38. 38.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
39. 39.💪 Which can a force NOT do? (a) change its shape (b) start it moving (c) change its colour (d) stop it moving
40. 40.True or false: pulling a cart is a push. (a) False (b) True

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