Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 37 · 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: pressing a doorbell is a pull. (a) True (b) False
2. 2.True or false: pushing a swing is a pull. (a) True (b) False
3. 3.💪 A bag has a mass of 10 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
4. 4.💪 A box weighs 350 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
5. 5.💪 Which force is at work: a river flows downhill? (a) friction (b) gravity (c) muscular force (d) magnetic force
6. 6.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
7. 7.💪 A bag has a mass of 49 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
8. 8.Which of these is caused by muscular force? (a) lifting a school bag (b) an apple falls down (c) a thrown ball comes down (d) a compass needle turns
9. 9.💪 In a tug of war, one team pulls right with 60 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
10. 10.Which of these is caused by magnetic force? (a) pedalling a cycle (b) rubbing hands warms them (c) a compass needle turns (d) a river flows downhill
11. 11.💪 Two children push a box to the right, one with 15 N and the other with 80 N. What is the net (total) force on the box, in newtons?
12. 12.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
13. 13.True or false: opening a drawer is a pull. (a) False (b) True
14. 14.Which of these is caused by muscular force? (a) rain falls to the ground (b) pedalling a cycle (c) rubbing hands warms them (d) a compass needle turns
15. 15.Which of these is caused by friction? (a) an apple falls down (b) a rolling ball slows (c) a compass needle turns (d) lifting a school bag
16. 16.True or false: opening a drawer is a push. (a) False (b) True
17. 17.True or false: a tug of war is a pull. (a) False (b) True
18. 18.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
19. 19.💪 Which force is at work: shoes grip the floor? (a) gravity (b) friction (c) magnetic force (d) muscular force
20. 20.💪 In a tug of war, one team pulls right with 75 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
21. 21.💪 A force is a … (a) kind of colour (b) type of sound (c) unit of time (d) push or a pull
22. 22.💪 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) no net force (b) to the left (c) to the right
23. 23.💪 Which force is at work: an apple falls down? (a) muscular force (b) magnetic force (c) friction (d) gravity
24. 24.💪 In a tug of war, one team pulls left with 100 N and the other pulls right with 40 N. What is the size of the net force, in newtons?
25. 25.True or false: pushing a trolley is a push. (a) False (b) True
26. 26.💪 Which force is at work: rain falls to the ground? (a) friction (b) muscular force (c) gravity (d) magnetic force
27. 27.💪 A cart is pulled to the right with 45 N and to the left with 35 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
28. 28.💪 In which unit do we measure force? (a) second (s) (b) litre (L) (c) newton (N) (d) metre (m)
29. 29.💪 Which force is at work: brakes stop a bicycle? (a) muscular force (b) gravity (c) magnetic force (d) friction
30. 30.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) doubled (c) balanced (d) gravity
31. 31.💪 Which force pulls everything towards the Earth? (a) friction (b) gravity (c) magnetism (d) wind
32. 32.💪 In a tug of war, one team pulls right with 25 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
33. 33.💪 A cart is pulled to the right with 35 N and to the left with 35 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
34. 34.💪 A box weighs 510 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
35. 35.True or false: pushing a trolley is a pull. (a) False (b) True
36. 36.💪 Which force is at work: a compass needle turns? (a) muscular force (b) gravity (c) magnetic force (d) friction
37. 37.💪 In a tug of war, one team pulls right with 90 N and the other pulls left with 80 N. What is the size of the net force, in newtons?
38. 38.💪 Two children push a box to the right, one with 30 N and the other with 35 N. What is the net (total) force on the box, in newtons?
39. 39.💪 In a tug of war, one team pulls left with 100 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
40. 40.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push

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