Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 971 · 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 muscular force? (a) an apple falls down (b) lifting a school bag (c) rain falls to the ground (d) a compass needle turns
2. 2.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
3. 3.Which of these is caused by gravity? (a) pedalling a cycle (b) rubbing hands warms them (c) shoes grip the floor (d) an apple falls down
4. 4.True or false: pressing a doorbell is a pull. (a) False (b) True
5. 5.💪 A force is a … (a) type of sound (b) kind of colour (c) unit of time (d) push or a pull
6. 6.True or false: closing a drawer is a pull. (a) False (b) True
7. 7.💪 A bag has a mass of 44 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
8. 8.💪 Which force pulls everything towards the Earth? (a) friction (b) magnetism (c) wind (d) gravity
9. 9.Which of these is caused by muscular force? (a) a fridge magnet sticks (b) a rolling ball slows (c) a compass needle turns (d) pedalling a cycle
10. 10.💪 Which force is at work: a compass needle turns? (a) friction (b) muscular force (c) gravity (d) magnetic force
11. 11.💪 Which can a force NOT do? (a) start it moving (b) change its shape (c) stop it moving (d) change its colour
12. 12.💪 A box weighs 100 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
13. 13.💪 Two children push a box to the right, one with 15 N and the other with 95 N. What is the net (total) force on the box, in newtons?
14. 14.True or false: drawing up a well bucket is a pull. (a) False (b) True
15. 15.💪 A bag has a mass of 39 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
16. 16.💪 A box weighs 350 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
17. 17.💪 Two children push a box to the right, one with 40 N and the other with 65 N. What is the net (total) force on the box, in newtons?
18. 18.True or false: plucking a mango is a pull. (a) True (b) False
19. 19.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) friction (c) magnetic force (d) gravity
20. 20.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
21. 21.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
22. 22.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) muscular force (c) friction (d) gravity
23. 23.💪 In a tug of war, one team pulls left with 45 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
24. 24.💪 In a tug of war, one team pulls right with 60 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
25. 25.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
26. 26.💪 A box weighs 550 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
27. 27.💪 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
28. 28.💪 Which force is at work: an apple falls down? (a) friction (b) gravity (c) muscular force (d) magnetic force
29. 29.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) an apple falls down (c) a river flows downhill (d) a fridge magnet sticks
30. 30.True or false: a tug of war is a push. (a) False (b) True
31. 31.True or false: pulling up your socks is a pull. (a) False (b) True
32. 32.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) muscular force (c) gravity (d) magnetic force
33. 33.True or false: pushing a trolley is a push. (a) False (b) True
34. 34.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) muscular force (c) gravity (d) friction
35. 35.💪 Which force is at work: rubbing hands warms them? (a) friction (b) magnetic force (c) muscular force (d) gravity
36. 36.💪 In a tug of war, one team pulls right with 85 N and the other pulls left with 65 N. What is the size of the net force, in newtons?
37. 37.Which of these is caused by friction? (a) rain falls to the ground (b) a compass needle turns (c) lifting a school bag (d) rubbing hands warms them
38. 38.💪 In a tug of war, one team pulls left with 70 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
39. 39.💪 In a tug of war, one team pulls left with 40 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
40. 40.💪 A bag has a mass of 12 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?

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