Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 689 · 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.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) unbalanced (c) doubled (d) gravity
2. 2.💪 Two children push a box to the right, one with 30 N and the other with 55 N. What is the net (total) force on the box, in newtons?
3. 3.💪 Which force is at work: an apple falls down? (a) muscular force (b) gravity (c) magnetic force (d) friction
4. 4.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
5. 5.True or false: pushing a swing is a pull. (a) False (b) True
6. 6.Which of these is caused by magnetic force? (a) squeezing a lemon (b) a compass needle turns (c) a rolling ball slows (d) rubbing hands warms them
7. 7.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
8. 8.💪 Which force is at work: a magnet picks up pins? (a) muscular force (b) gravity (c) friction (d) magnetic force
9. 9.True or false: pulling up your socks is a pull. (a) True (b) False
10. 10.💪 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?
11. 11.💪 A bag has a mass of 3 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
12. 12.Which of these is caused by gravity? (a) brakes stop a bicycle (b) a river flows downhill (c) rubbing hands warms them (d) a fridge magnet sticks
13. 13.💪 A bag has a mass of 33 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
14. 14.True or false: opening a drawer is a push. (a) False (b) True
15. 15.💪 Which force is at work: a compass needle turns? (a) gravity (b) friction (c) muscular force (d) magnetic force
16. 16.💪 Which force is at work: shoes grip the floor? (a) gravity (b) magnetic force (c) muscular force (d) friction
17. 17.True or false: kicking a football is a push. (a) True (b) False
18. 18.True or false: pressing a doorbell is a push. (a) False (b) True
19. 19.True or false: hitting a cricket ball is a push. (a) True (b) False
20. 20.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
21. 21.💪 A box weighs 120 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
22. 22.True or false: a tug of war is a pull. (a) True (b) False
23. 23.💪 A bag has a mass of 39 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
24. 24.💪 A force is a … (a) push or a pull (b) unit of time (c) kind of colour (d) type of sound
25. 25.💪 A box weighs 500 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
26. 26.💪 A bag has a mass of 27 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
27. 27.💪 Two children push a box to the right, one with 90 N and the other with 55 N. What is the net (total) force on the box, in newtons?
28. 28.True or false: plucking a mango is a pull. (a) True (b) False
29. 29.💪 Which force is at work: lifting a school bag? (a) friction (b) gravity (c) muscular force (d) magnetic force
30. 30.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
31. 31.💪 Two children push a box to the right, one with 90 N and the other with 60 N. What is the net (total) force on the box, in newtons?
32. 32.💪 Which force is at work: squeezing a lemon? (a) muscular force (b) friction (c) gravity (d) magnetic force
33. 33.💪 A box weighs 510 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
34. 34.💪 Which force is at work: brakes stop a bicycle? (a) gravity (b) muscular force (c) magnetic force (d) friction
35. 35.True or false: drawing up a well bucket is a push. (a) False (b) True
36. 36.True or false: hitting a cricket ball is a pull. (a) True (b) False
37. 37.💪 In a tug of war, one team pulls left with 40 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
38. 38.Which of these is caused by friction? (a) a rolling ball slows (b) a fridge magnet sticks (c) a thrown ball comes down (d) pedalling a cycle
39. 39.💪 Which can a force NOT do? (a) stop it moving (b) start it moving (c) change its shape (d) change its colour
40. 40.💪 Two children push a box to the right, one with 95 N and the other with 45 N. What is the net (total) force on the box, in newtons?

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