Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 387 · 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 children push a box to the right, one with 100 N and the other with 5 N. What is the net (total) force on the box, in newtons?
2. 2.Which of these is caused by gravity? (a) a fridge magnet sticks (b) a rolling ball slows (c) rain falls to the ground (d) brakes stop a bicycle
3. 3.💪 In a tug of war, one team pulls right with 100 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
4. 4.Which of these is caused by muscular force? (a) lifting a school bag (b) rain falls to the ground (c) shoes grip the floor (d) a compass needle turns
5. 5.💪 A cart is pulled to the right with 20 N and to the left with 10 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
6. 6.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
7. 7.True or false: pulling up your socks is a push. (a) False (b) True
8. 8.Which of these is caused by friction? (a) pedalling a cycle (b) a thrown ball comes down (c) rain falls to the ground (d) brakes stop a bicycle
9. 9.💪 Which force is at work: a river flows downhill? (a) gravity (b) magnetic force (c) friction (d) muscular force
10. 10.💪 Which can a force NOT do? (a) change its colour (b) start it moving (c) stop it moving (d) change its shape
11. 11.💪 A bag has a mass of 1 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
12. 12.💪 In a tug of war, one team pulls left with 15 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
13. 13.💪 Which force is at work: an apple falls down? (a) friction (b) magnetic force (c) muscular force (d) gravity
14. 14.True or false: plucking a mango is a push. (a) True (b) False
15. 15.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
16. 16.True or false: pushing a swing is a push. (a) True (b) False
17. 17.True or false: a tug of war is a push. (a) False (b) True
18. 18.Which of these is caused by magnetic force? (a) a rolling ball slows (b) shoes grip the floor (c) lifting a school bag (d) a fridge magnet sticks
19. 19.💪 A box weighs 250 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
20. 20.True or false: drawing up a well bucket is a push. (a) True (b) False
21. 21.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) gravity (c) unbalanced (d) doubled
22. 22.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
23. 23.💪 A box weighs 460 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
24. 24.💪 A force is a … (a) type of sound (b) push or a pull (c) unit of time (d) kind of colour
25. 25.Which of these is caused by muscular force? (a) a rolling ball slows (b) squeezing a lemon (c) a compass needle turns (d) a thrown ball comes down
26. 26.True or false: pressing a doorbell is a pull. (a) True (b) False
27. 27.True or false: a tug of war is a pull. (a) True (b) False
28. 28.💪 A cart is pulled to the right with 80 N and to the left with 65 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
29. 29.💪 In a tug of war, one team pulls left with 20 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
30. 30.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
31. 31.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) magnetic force (c) friction (d) muscular force
32. 32.💪 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) to the left (c) no net force
33. 33.💪 Two children push a box to the right, one with 80 N and the other with 75 N. What is the net (total) force on the box, in newtons?
34. 34.💪 Which force is at work: a compass needle turns? (a) magnetic force (b) gravity (c) muscular force (d) friction
35. 35.💪 Which force pulls everything towards the Earth? (a) gravity (b) friction (c) wind (d) magnetism
36. 36.💪 A cart is pulled to the right with 25 N and to the left with 10 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
37. 37.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
38. 38.💪 A bag has a mass of 20 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
39. 39.True or false: pushing a trolley is a pull. (a) True (b) False
40. 40.💪 A cart is pulled to the right with 40 N and to the left with 35 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right

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