Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 446 · 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: an apple falls down? (a) gravity (b) friction (c) magnetic force (d) muscular force
2. 2.💪 A bag has a mass of 49 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
3. 3.Which of these is caused by gravity? (a) a compass needle turns (b) brakes stop a bicycle (c) pedalling a cycle (d) a thrown ball comes down
4. 4.True or false: closing a drawer is a pull. (a) False (b) True
5. 5.💪 A box weighs 360 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
6. 6.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
7. 7.💪 In which unit do we measure force? (a) second (s) (b) metre (m) (c) litre (L) (d) newton (N)
8. 8.💪 In a tug of war, one team pulls right with 65 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
9. 9.True or false: a tug of war is a pull. (a) True (b) False
10. 10.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
11. 11.💪 A bag has a mass of 12 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
12. 12.Which of these is caused by friction? (a) a compass needle turns (b) a fridge magnet sticks (c) rain falls to the ground (d) brakes stop a bicycle
13. 13.💪 Which force is at work: a magnet picks up pins? (a) muscular force (b) friction (c) magnetic force (d) gravity
14. 14.💪 Which force is at work: a compass needle turns? (a) muscular force (b) friction (c) magnetic force (d) gravity
15. 15.💪 A box weighs 370 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
16. 16.💪 A box weighs 230 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
17. 17.True or false: plucking a mango is a pull. (a) True (b) False
18. 18.💪 Which force is at work: squeezing a lemon? (a) gravity (b) friction (c) muscular force (d) magnetic force
19. 19.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
20. 20.💪 Two children push a box to the right, one with 50 N and the other with 5 N. What is the net (total) force on the box, in newtons?
21. 21.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
22. 22.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) gravity (c) friction (d) magnetic force
23. 23.💪 Which force pulls everything towards the Earth? (a) friction (b) wind (c) gravity (d) magnetism
24. 24.💪 Which force is at work: brakes stop a bicycle? (a) muscular force (b) gravity (c) friction (d) magnetic force
25. 25.True or false: kicking a football is a pull. (a) False (b) True
26. 26.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
27. 27.💪 A box weighs 540 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.Which of these is caused by friction? (a) rubbing hands warms them (b) lifting a school bag (c) a river flows downhill (d) a magnet picks up pins
30. 30.True or false: opening a drawer is a pull. (a) False (b) True
31. 31.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) gravity (c) friction (d) muscular force
32. 32.Which of these is caused by magnetic force? (a) an apple falls down (b) brakes stop a bicycle (c) a compass needle turns (d) a river flows downhill
33. 33.💪 A bag has a mass of 10 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
34. 34.💪 Two children push a box to the right, one with 35 N and the other with 90 N. What is the net (total) force on the box, in newtons?
35. 35.💪 Which force is at work: lifting a school bag? (a) friction (b) magnetic force (c) gravity (d) muscular force
36. 36.Which of these is caused by muscular force? (a) a fridge magnet sticks (b) a river flows downhill (c) pedalling a cycle (d) a thrown ball comes down
37. 37.True or false: pushing a trolley is a pull. (a) True (b) False
38. 38.Which of these is caused by friction? (a) a magnet picks up pins (b) pedalling a cycle (c) a rolling ball slows (d) an apple falls down
39. 39.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) gravity (c) friction (d) magnetic force
40. 40.True or false: hitting a cricket ball is a pull. (a) False (b) True

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