Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 262 · 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 70 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
2. 2.💪 Which can a force NOT do? (a) start it moving (b) stop it moving (c) change its colour (d) change its shape
3. 3.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) unbalanced (c) balanced (d) doubled
4. 4.💪 In which unit do we measure force? (a) metre (m) (b) second (s) (c) litre (L) (d) newton (N)
5. 5.💪 In a tug of war, one team pulls left with 20 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
6. 6.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
7. 7.💪 A force is a … (a) push or a pull (b) kind of colour (c) type of sound (d) unit of time
8. 8.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
9. 9.💪 A bag has a mass of 60 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
10. 10.True or false: opening a drawer is a pull. (a) False (b) True
11. 11.💪 Two children push a box to the right, one with 100 N and the other with 65 N. What is the net (total) force on the box, in newtons?
12. 12.💪 A box weighs 40 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
13. 13.True or false: hitting a cricket ball is a push. (a) True (b) False
14. 14.💪 A box weighs 330 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
15. 15.💪 A cart is pulled to the right with 60 N and to the left with 65 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
16. 16.💪 Which force is at work: brakes stop a bicycle? (a) magnetic force (b) muscular force (c) friction (d) gravity
17. 17.💪 A box weighs 210 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
18. 18.💪 A cart is pulled to the right with 65 N and to the left with 75 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
19. 19.💪 Which force is at work: squeezing a lemon? (a) friction (b) muscular force (c) magnetic force (d) gravity
20. 20.Which of these is caused by muscular force? (a) an apple falls down (b) a rolling ball slows (c) lifting a school bag (d) rain falls to the ground
21. 21.Which of these is caused by gravity? (a) pedalling a cycle (b) a compass needle turns (c) rubbing hands warms them (d) a thrown ball comes down
22. 22.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
23. 23.Which of these is caused by gravity? (a) lifting a school bag (b) rain falls to the ground (c) a compass needle turns (d) squeezing a lemon
24. 24.💪 Which force is at work: an apple falls down? (a) magnetic force (b) gravity (c) friction (d) muscular force
25. 25.💪 Which force is at work: a fridge magnet sticks? (a) magnetic force (b) gravity (c) friction (d) muscular force
26. 26.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
27. 27.True or false: drawing up a well bucket is a push. (a) False (b) True
28. 28.💪 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?
29. 29.💪 A bag has a mass of 18 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
30. 30.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
31. 31.Which of these is caused by muscular force? (a) rubbing hands warms them (b) shoes grip the floor (c) brakes stop a bicycle (d) pedalling a cycle
32. 32.Which of these is caused by friction? (a) a magnet picks up pins (b) an apple falls down (c) rain falls to the ground (d) a rolling ball slows
33. 33.Which of these is caused by magnetic force? (a) a rolling ball slows (b) a river flows downhill (c) pedalling a cycle (d) a compass needle turns
34. 34.True or false: pressing a doorbell is a pull. (a) False (b) True
35. 35.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
36. 36.💪 In a tug of war, one team pulls left with 55 N and the other pulls right with 50 N. What is the size of the net force, in newtons?
37. 37.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
38. 38.True or false: pulling up your socks is a push. (a) True (b) False
39. 39.True or false: pushing a trolley is a push. (a) True (b) False
40. 40.True or false: kicking a football is a push. (a) True (b) False

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