Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 915 · 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 left with 40 N and the other pulls right with 30 N. What is the size of the net force, in newtons?
2. 2.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
3. 3.💪 Two children push a box to the right, one with 45 N and the other with 30 N. What is the net (total) force on the box, in newtons?
4. 4.Which of these is caused by gravity? (a) a rolling ball slows (b) lifting a school bag (c) an apple falls down (d) brakes stop a bicycle
5. 5.💪 Which force is at work: a magnet picks up pins? (a) magnetic force (b) muscular force (c) friction (d) gravity
6. 6.💪 Which force is at work: a compass needle turns? (a) magnetic force (b) muscular force (c) friction (d) gravity
7. 7.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) unbalanced (c) gravity (d) balanced
8. 8.💪 A bag has a mass of 32 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
9. 9.💪 A box weighs 460 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
10. 10.💪 A box weighs 570 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
11. 11.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
12. 12.💪 A cart is pulled to the right with 40 N and to the left with 25 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
13. 13.💪 A cart is pulled to the right with 25 N and to the left with 30 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
14. 14.💪 A bag has a mass of 36 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
15. 15.Which of these is caused by muscular force? (a) pedalling a cycle (b) a magnet picks up pins (c) a thrown ball comes down (d) rubbing hands warms them
16. 16.💪 Which can a force NOT do? (a) change its shape (b) start it moving (c) change its colour (d) stop it moving
17. 17.💪 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?
18. 18.💪 A bag has a mass of 2 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
19. 19.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
20. 20.True or false: pulling up your socks is a pull. (a) False (b) True
21. 21.True or false: pulling a cart is a push. (a) True (b) False
22. 22.💪 A bag has a mass of 29 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
23. 23.💪 A cart is pulled to the right with 65 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
24. 24.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
25. 25.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
26. 26.💪 Two children push a box to the right, one with 35 N and the other with 55 N. What is the net (total) force on the box, in newtons?
27. 27.Which of these is caused by friction? (a) brakes stop a bicycle (b) a compass needle turns (c) a magnet picks up pins (d) lifting a school bag
28. 28.💪 Two children push a box to the right, one with 60 N and the other with 90 N. What is the net (total) force on the box, in newtons?
29. 29.Which of these is caused by gravity? (a) lifting a school bag (b) a thrown ball comes down (c) shoes grip the floor (d) a magnet picks up pins
30. 30.True or false: closing a drawer is a push. (a) False (b) True
31. 31.True or false: opening a drawer is a push. (a) True (b) False
32. 32.True or false: closing a drawer is a pull. (a) False (b) True
33. 33.True or false: pressing a doorbell is a pull. (a) True (b) False
34. 34.💪 A force is a … (a) type of sound (b) unit of time (c) kind of colour (d) push or a pull
35. 35.Which of these is caused by magnetic force? (a) squeezing a lemon (b) a compass needle turns (c) rain falls to the ground (d) pedalling a cycle
36. 36.True or false: pushing a trolley is a pull. (a) False (b) True
37. 37.Which of these is caused by friction? (a) a rolling ball slows (b) an apple falls down (c) squeezing a lemon (d) a compass needle turns
38. 38.True or false: a tug of war is a push. (a) True (b) False
39. 39.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
40. 40.💪 A box weighs 510 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?

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