Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 722 · 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: shoes grip the floor? (a) gravity (b) muscular force (c) magnetic force (d) friction
2. 2.💪 In a tug of war, one team pulls right with 55 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
3. 3.Which of these is caused by muscular force? (a) rain falls to the ground (b) a magnet picks up pins (c) squeezing a lemon (d) an apple falls down
4. 4.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) an apple falls down (c) a fridge magnet sticks (d) rubbing hands warms them
5. 5.💪 Which force is at work: lifting a school bag? (a) friction (b) magnetic force (c) muscular force (d) gravity
6. 6.💪 Two children push a box to the right, one with 25 N and the other with 20 N. What is the net (total) force on the box, in newtons?
7. 7.💪 Which force is at work: an apple falls down? (a) muscular force (b) magnetic force (c) gravity (d) friction
8. 8.Which of these is caused by magnetic force? (a) a magnet picks up pins (b) rain falls to the ground (c) brakes stop a bicycle (d) a river flows downhill
9. 9.True or false: pulling a cart is a push. (a) False (b) True
10. 10.💪 Which force is at work: pedalling a cycle? (a) gravity (b) friction (c) magnetic force (d) muscular force
11. 11.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
12. 12.💪 A box weighs 530 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
13. 13.True or false: pulling up your socks is a pull. (a) False (b) True
14. 14.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) muscular force (c) magnetic force (d) friction
15. 15.True or false: a tug of war is a pull. (a) True (b) False
16. 16.Which of these is caused by muscular force? (a) rain falls to the ground (b) a magnet picks up pins (c) a river flows downhill (d) lifting a school bag
17. 17.💪 Which force is at work: brakes stop a bicycle? (a) muscular force (b) gravity (c) friction (d) magnetic force
18. 18.💪 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?
19. 19.Which of these is caused by gravity? (a) rubbing hands warms them (b) lifting a school bag (c) a thrown ball comes down (d) shoes grip the floor
20. 20.💪 A cart is pulled to the right with 90 N and to the left with 75 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
21. 21.Which of these is caused by friction? (a) brakes stop a bicycle (b) rain falls to the ground (c) a river flows downhill (d) a compass needle turns
22. 22.True or false: pressing a doorbell is a push. (a) False (b) True
23. 23.💪 A box weighs 50 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
24. 24.💪 A bag has a mass of 44 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
25. 25.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) doubled (c) gravity (d) unbalanced
26. 26.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) muscular force (c) friction (d) magnetic force
27. 27.💪 In a tug of war, one team pulls right with 25 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
28. 28.True or false: opening a drawer is a push. (a) True (b) False
29. 29.💪 A bag has a mass of 36 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
30. 30.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
31. 31.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
32. 32.💪 A cart is pulled to the right with 45 N and to the left with 30 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
33. 33.Which of these is caused by gravity? (a) rain falls to the ground (b) a rolling ball slows (c) brakes stop a bicycle (d) a compass needle turns
34. 34.💪 A box weighs 420 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
35. 35.💪 In a tug of war, one team pulls right with 80 N and the other pulls left with 50 N. What is the size of the net force, in newtons?
36. 36.💪 A box weighs 550 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
37. 37.💪 In a tug of war, one team pulls right with 15 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
38. 38.💪 A bag has a mass of 4 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
39. 39.Which of these is caused by magnetic force? (a) squeezing a lemon (b) rubbing hands warms them (c) an apple falls down (d) a compass needle turns
40. 40.💪 Which can a force NOT do? (a) change its shape (b) change its colour (c) start it moving (d) stop it moving

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