Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 921 · 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 magnetic force? (a) squeezing a lemon (b) a compass needle turns (c) brakes stop a bicycle (d) lifting a school bag
2. 2.💪 A box weighs 20 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
3. 3.💪 In which unit do we measure force? (a) second (s) (b) litre (L) (c) metre (m) (d) newton (N)
4. 4.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) muscular force (c) friction (d) magnetic force
5. 5.💪 A bag has a mass of 1 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
6. 6.True or false: pushing a trolley is a pull. (a) True (b) False
7. 7.Which of these is caused by friction? (a) a magnet picks up pins (b) brakes stop a bicycle (c) lifting a school bag (d) a thrown ball comes down
8. 8.💪 A bag has a mass of 12 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
9. 9.💪 A cart is pulled to the right with 95 N and to the left with 95 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
10. 10.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
11. 11.💪 Which force is at work: a magnet picks up pins? (a) magnetic force (b) gravity (c) muscular force (d) friction
12. 12.💪 Which force is at work: brakes stop a bicycle? (a) muscular force (b) friction (c) magnetic force (d) gravity
13. 13.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) unbalanced (c) gravity (d) doubled
14. 14.Which of these is caused by friction? (a) rain falls to the ground (b) a compass needle turns (c) a rolling ball slows (d) a fridge magnet sticks
15. 15.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) muscular force (c) magnetic force (d) gravity
16. 16.Which of these is caused by muscular force? (a) rain falls to the ground (b) lifting a school bag (c) an apple falls down (d) a compass needle turns
17. 17.True or false: a tug of war is a pull. (a) False (b) True
18. 18.💪 A force is a … (a) unit of time (b) kind of colour (c) type of sound (d) push or a pull
19. 19.True or false: opening a drawer is a push. (a) True (b) False
20. 20.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) gravity (c) friction (d) magnetic force
21. 21.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
22. 22.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
23. 23.💪 Which force is at work: an apple falls down? (a) friction (b) muscular force (c) gravity (d) magnetic force
24. 24.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
25. 25.True or false: pressing a doorbell is a pull. (a) True (b) False
26. 26.💪 Which force pulls everything towards the Earth? (a) wind (b) gravity (c) friction (d) magnetism
27. 27.💪 A box weighs 180 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
28. 28.💪 A bag has a mass of 39 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
29. 29.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
30. 30.💪 Which force is at work: pedalling a cycle? (a) friction (b) magnetic force (c) gravity (d) muscular force
31. 31.💪 Two children push a box to the right, one with 80 N and the other with 80 N. What is the net (total) force on the box, in newtons?
32. 32.Which of these is caused by friction? (a) pedalling a cycle (b) shoes grip the floor (c) rain falls to the ground (d) a compass needle turns
33. 33.💪 A cart is pulled to the right with 80 N and to the left with 70 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
34. 34.💪 Two children push a box to the right, one with 40 N and the other with 55 N. What is the net (total) force on the box, in newtons?
35. 35.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
36. 36.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
37. 37.💪 A box weighs 210 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
38. 38.💪 Which force is at work: rain falls to the ground? (a) gravity (b) magnetic force (c) friction (d) muscular force
39. 39.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
40. 40.💪 Which can a force NOT do? (a) start it moving (b) change its shape (c) change its colour (d) stop it moving

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