Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 774 · 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.Which of these is caused by friction? (a) squeezing a lemon (b) pedalling a cycle (c) shoes grip the floor (d) a thrown ball comes down
2. 2.💪 A bag has a mass of 38 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
3. 3.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
4. 4.💪 A cart is pulled to the right with 50 N and to the left with 50 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
5. 5.💪 Which force is at work: pedalling a cycle? (a) muscular force (b) gravity (c) magnetic force (d) friction
6. 6.Which of these is caused by gravity? (a) shoes grip the floor (b) a river flows downhill (c) squeezing a lemon (d) a magnet picks up pins
7. 7.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) friction (c) gravity (d) muscular force
8. 8.True or false: plucking a mango is a push. (a) False (b) True
9. 9.True or false: pulling up your socks is a push. (a) False (b) True
10. 10.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) magnetic force (c) gravity (d) friction
11. 11.Which of these is caused by gravity? (a) squeezing a lemon (b) shoes grip the floor (c) a rolling ball slows (d) an apple falls down
12. 12.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) unbalanced (c) gravity (d) doubled
13. 13.💪 A box weighs 200 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
14. 14.💪 In a tug of war, one team pulls right with 40 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
15. 15.True or false: drawing up a well bucket is a pull. (a) True (b) False
16. 16.💪 Which force is at work: lifting a school bag? (a) gravity (b) friction (c) magnetic force (d) muscular force
17. 17.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
18. 18.💪 A cart is pulled to the right with 20 N and to the left with 20 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
19. 19.True or false: opening a drawer is a pull. (a) True (b) False
20. 20.💪 A bag has a mass of 26 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
21. 21.💪 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?
22. 22.💪 A cart is pulled to the right with 75 N and to the left with 90 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
23. 23.💪 A box weighs 30 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
24. 24.💪 Which force is at work: rubbing hands warms them? (a) magnetic force (b) friction (c) muscular force (d) gravity
25. 25.💪 A bag has a mass of 53 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
26. 26.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
27. 27.💪 Two children push a box to the right, one with 35 N and the other with 60 N. What is the net (total) force on the box, in newtons?
28. 28.💪 In a tug of war, one team pulls right with 85 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
29. 29.True or false: a tug of war is a pull. (a) False (b) True
30. 30.💪 A cart is pulled to the right with 55 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
31. 31.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
32. 32.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
33. 33.True or false: pushing a trolley is a push. (a) True (b) False
34. 34.True or false: closing a drawer is a pull. (a) False (b) True
35. 35.💪 In which unit do we measure force? (a) metre (m) (b) second (s) (c) newton (N) (d) litre (L)
36. 36.💪 A bag has a mass of 3 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
37. 37.💪 A bag has a mass of 59 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
38. 38.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
39. 39.💪 In a tug of war, one team pulls right with 70 N and the other pulls left with 50 N. What is the size of the net force, in newtons?
40. 40.True or false: kicking a football is a pull. (a) True (b) False

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