Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 181 · 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 which unit do we measure force? (a) litre (L) (b) metre (m) (c) second (s) (d) newton (N)
2. 2.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
3. 3.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) muscular force (c) friction (d) gravity
4. 4.💪 A box weighs 460 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
5. 5.True or false: plucking a mango is a push. (a) True (b) False
6. 6.💪 A bag has a mass of 20 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
7. 7.💪 Which force is at work: a fridge magnet sticks? (a) gravity (b) magnetic force (c) muscular force (d) friction
8. 8.💪 A bag has a mass of 16 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
9. 9.💪 A box weighs 340 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
10. 10.💪 In a tug of war, one team pulls right with 30 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
11. 11.True or false: pulling up your socks is a push. (a) True (b) False
12. 12.💪 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) to the right (b) no net force (c) to the left
13. 13.💪 In a tug of war, one team pulls left with 80 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
14. 14.💪 A bag has a mass of 4 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
15. 15.💪 A bag has a mass of 44 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
16. 16.💪 A cart is pulled to the right with 40 N and to the left with 40 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
17. 17.💪 A cart is pulled to the right with 50 N and to the left with 40 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
18. 18.💪 A force is a … (a) type of sound (b) push or a pull (c) kind of colour (d) unit of time
19. 19.💪 Two children push a box to the right, one with 20 N and the other with 55 N. What is the net (total) force on the box, in newtons?
20. 20.True or false: closing a drawer is a pull. (a) True (b) False
21. 21.💪 Two children push a box to the right, one with 15 N and the other with 90 N. What is the net (total) force on the box, in newtons?
22. 22.True or false: pushing a trolley is a pull. (a) True (b) False
23. 23.💪 Which force is at work: a thrown ball comes down? (a) friction (b) muscular force (c) magnetic force (d) gravity
24. 24.Which of these is caused by magnetic force? (a) shoes grip the floor (b) an apple falls down (c) brakes stop a bicycle (d) a fridge magnet sticks
25. 25.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) friction (c) gravity (d) muscular force
26. 26.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) gravity (c) magnetic force (d) friction
27. 27.💪 Which can a force NOT do? (a) change its shape (b) start it moving (c) change its colour (d) stop it moving
28. 28.💪 Which force is at work: an apple falls down? (a) magnetic force (b) friction (c) muscular force (d) gravity
29. 29.💪 Two children push a box to the right, one with 20 N and the other with 30 N. What is the net (total) force on the box, in newtons?
30. 30.💪 A bag has a mass of 1 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
31. 31.Which of these is caused by gravity? (a) a river flows downhill (b) a fridge magnet sticks (c) a compass needle turns (d) squeezing a lemon
32. 32.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
33. 33.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) gravity (c) doubled (d) balanced
34. 34.💪 Which force is at work: rubbing hands warms them? (a) muscular force (b) magnetic force (c) friction (d) gravity
35. 35.True or false: pressing a doorbell is a pull. (a) True (b) False
36. 36.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
37. 37.💪 Which force pulls everything towards the Earth? (a) friction (b) wind (c) magnetism (d) gravity
38. 38.True or false: pushing a swing is a push. (a) True (b) False
39. 39.💪 Which force is at work: pedalling a cycle? (a) friction (b) gravity (c) magnetic force (d) muscular force
40. 40.💪 Which force is at work: lifting a school bag? (a) muscular force (b) friction (c) gravity (d) magnetic force

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