Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 891 · 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.💪 A bag has a mass of 51 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
2. 2.💪 Two children push a box to the right, one with 30 N and the other with 20 N. What is the net (total) force on the box, in newtons?
3. 3.True or false: pushing a swing is a pull. (a) True (b) False
4. 4.Which of these is caused by friction? (a) lifting a school bag (b) brakes stop a bicycle (c) squeezing a lemon (d) an apple falls down
5. 5.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) friction (c) gravity (d) magnetic force
6. 6.True or false: pulling up your socks is a pull. (a) True (b) False
7. 7.💪 In a tug of war, one team pulls left with 55 N and the other pulls right with 50 N. What is the size of the net force, in newtons?
8. 8.💪 Which force is at work: rubbing hands warms them? (a) friction (b) magnetic force (c) gravity (d) muscular force
9. 9.💪 Which force is at work: brakes stop a bicycle? (a) gravity (b) magnetic force (c) friction (d) muscular force
10. 10.💪 A bag has a mass of 37 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
11. 11.True or false: kicking a football is a push. (a) True (b) False
12. 12.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
13. 13.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
14. 14.Which of these is caused by gravity? (a) a fridge magnet sticks (b) an apple falls down (c) lifting a school bag (d) rubbing hands warms them
15. 15.Which of these is caused by friction? (a) a compass needle turns (b) a rolling ball slows (c) pedalling a cycle (d) a magnet picks up pins
16. 16.💪 Which force pulls everything towards the Earth? (a) wind (b) gravity (c) magnetism (d) friction
17. 17.💪 A force is a … (a) unit of time (b) type of sound (c) push or a pull (d) kind of colour
18. 18.True or false: a tug of war is a pull. (a) True (b) False
19. 19.💪 Which force is at work: a compass needle turns? (a) magnetic force (b) gravity (c) muscular force (d) friction
20. 20.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
21. 21.Which of these is caused by magnetic force? (a) a magnet picks up pins (b) a river flows downhill (c) a thrown ball comes down (d) squeezing a lemon
22. 22.True or false: pulling up your socks is a push. (a) True (b) False
23. 23.💪 Two children push a box to the right, one with 60 N and the other with 60 N. What is the net (total) force on the box, in newtons?
24. 24.💪 A cart is pulled to the right with 45 N and to the left with 55 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
25. 25.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
26. 26.💪 Which force is at work: an apple falls down? (a) gravity (b) friction (c) muscular force (d) magnetic force
27. 27.💪 In which unit do we measure force? (a) metre (m) (b) newton (N) (c) second (s) (d) litre (L)
28. 28.Which of these is caused by magnetic force? (a) a fridge magnet sticks (b) shoes grip the floor (c) rain falls to the ground (d) lifting a school bag
29. 29.💪 A bag has a mass of 52 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
30. 30.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
31. 31.True or false: plucking a mango is a push. (a) True (b) False
32. 32.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
33. 33.💪 Two children push a box to the right, one with 5 N and the other with 90 N. What is the net (total) force on the box, in newtons?
34. 34.💪 In a tug of war, one team pulls right with 80 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
35. 35.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
36. 36.True or false: hitting a cricket ball is a pull. (a) True (b) False
37. 37.True or false: drawing up a well bucket is a push. (a) False (b) True
38. 38.True or false: pushing a swing is a push. (a) True (b) False
39. 39.💪 A bag has a mass of 36 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
40. 40.True or false: pushing a trolley is a pull. (a) True (b) False

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