Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 249 · 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 force is at work: brakes stop a bicycle? (a) friction (b) magnetic force (c) muscular force (d) gravity
2. 2.💪 Which can a force NOT do? (a) change its shape (b) start it moving (c) change its colour (d) stop it moving
3. 3.Which of these is caused by muscular force? (a) a compass needle turns (b) lifting a school bag (c) a magnet picks up pins (d) a river flows downhill
4. 4.True or false: pushing a trolley is a pull. (a) True (b) False
5. 5.💪 A bag has a mass of 46 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
6. 6.💪 In which unit do we measure force? (a) metre (m) (b) litre (L) (c) newton (N) (d) second (s)
7. 7.True or false: drawing up a well bucket is a push. (a) True (b) False
8. 8.💪 Which force is at work: a thrown ball comes down? (a) friction (b) muscular force (c) gravity (d) magnetic force
9. 9.💪 In a tug of war, one team pulls right with 90 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
10. 10.💪 In a tug of war, one team pulls right with 100 N and the other pulls left with 85 N. What is the size of the net force, in newtons?
11. 11.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) gravity (c) balanced (d) doubled
12. 12.💪 A bag has a mass of 45 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
13. 13.💪 Which force is at work: a compass needle turns? (a) magnetic force (b) gravity (c) friction (d) muscular force
14. 14.💪 In a tug of war, one team pulls right with 95 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
15. 15.💪 Which force is at work: shoes grip the floor? (a) gravity (b) muscular force (c) friction (d) magnetic force
16. 16.True or false: drawing up a well bucket is a pull. (a) True (b) False
17. 17.💪 Which force pulls everything towards the Earth? (a) friction (b) wind (c) magnetism (d) gravity
18. 18.Which of these is caused by muscular force? (a) squeezing a lemon (b) a compass needle turns (c) a rolling ball slows (d) rain falls to the ground
19. 19.True or false: kicking a football is a pull. (a) True (b) False
20. 20.True or false: pulling up your socks is a pull. (a) False (b) True
21. 21.True or false: closing a drawer is a pull. (a) True (b) False
22. 22.💪 A cart is pulled to the right with 40 N and to the left with 45 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
23. 23.True or false: hitting a cricket ball is a pull. (a) False (b) True
24. 24.💪 A bag has a mass of 33 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
25. 25.Which of these is caused by friction? (a) an apple falls down (b) rain falls to the ground (c) squeezing a lemon (d) a rolling ball slows
26. 26.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
27. 27.Which of these is caused by friction? (a) a fridge magnet sticks (b) a compass needle turns (c) shoes grip the floor (d) a thrown ball comes down
28. 28.💪 A box weighs 30 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
29. 29.💪 Two children push a box to the right, one with 10 N and the other with 55 N. What is the net (total) force on the box, in newtons?
30. 30.Which of these is caused by muscular force? (a) pedalling a cycle (b) rain falls to the ground (c) brakes stop a bicycle (d) a thrown ball comes down
31. 31.💪 Two children push a box to the right, one with 90 N and the other with 85 N. What is the net (total) force on the box, in newtons?
32. 32.💪 A cart is pulled to the right with 45 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
33. 33.💪 Two children push a box to the right, one with 100 N and the other with 10 N. What is the net (total) force on the box, in newtons?
34. 34.💪 A box weighs 440 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
35. 35.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
36. 36.💪 Which force is at work: rain falls to the ground? (a) gravity (b) magnetic force (c) friction (d) muscular force
37. 37.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
38. 38.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
39. 39.💪 A bag has a mass of 58 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
40. 40.True or false: pushing a trolley is a push. (a) False (b) True

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