Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 147 · 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.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
2. 2.💪 Two children push a box to the right, one with 10 N and the other with 20 N. What is the net (total) force on the box, in newtons?
3. 3.True or false: plucking a mango is a pull. (a) True (b) False
4. 4.💪 A bag has a mass of 4 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
5. 5.💪 In which unit do we measure force? (a) litre (L) (b) newton (N) (c) second (s) (d) metre (m)
6. 6.💪 A box weighs 280 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
7. 7.True or false: closing a drawer is a push. (a) True (b) False
8. 8.True or false: pulling up your socks is a push. (a) False (b) True
9. 9.💪 Which force is at work: an apple falls down? (a) muscular force (b) magnetic force (c) gravity (d) friction
10. 10.💪 A cart is pulled to the right with 75 N and to the left with 90 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
11. 11.True or false: pushing a trolley is a pull. (a) False (b) True
12. 12.💪 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?
13. 13.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
14. 14.💪 A bag has a mass of 24 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
15. 15.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
16. 16.💪 A cart is pulled to the right with 35 N and to the left with 20 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
17. 17.💪 Two children push a box to the right, one with 10 N and the other with 100 N. What is the net (total) force on the box, in newtons?
18. 18.💪 A cart is pulled to the right with 40 N and to the left with 30 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
19. 19.💪 A bag has a mass of 51 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
20. 20.💪 A box weighs 460 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
21. 21.True or false: hitting a cricket ball is a pull. (a) True (b) False
22. 22.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) doubled (c) balanced (d) gravity
23. 23.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
24. 24.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
25. 25.💪 Which force is at work: brakes stop a bicycle? (a) gravity (b) friction (c) magnetic force (d) muscular force
26. 26.Which of these is caused by gravity? (a) squeezing a lemon (b) rubbing hands warms them (c) a rolling ball slows (d) a thrown ball comes down
27. 27.💪 In a tug of war, one team pulls left with 70 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
28. 28.💪 A cart is pulled to the right with 90 N and to the left with 75 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
29. 29.Which of these is caused by muscular force? (a) a fridge magnet sticks (b) lifting a school bag (c) rubbing hands warms them (d) an apple falls down
30. 30.Which of these is caused by magnetic force? (a) a rolling ball slows (b) a fridge magnet sticks (c) a thrown ball comes down (d) an apple falls down
31. 31.💪 A cart is pulled to the right with 65 N and to the left with 75 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
32. 32.💪 A force is a … (a) type of sound (b) kind of colour (c) push or a pull (d) unit of time
33. 33.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
34. 34.Which of these is caused by gravity? (a) lifting a school bag (b) a rolling ball slows (c) shoes grip the floor (d) a river flows downhill
35. 35.💪 A box weighs 440 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
36. 36.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) muscular force (c) friction (d) magnetic force
37. 37.💪 Which force is at work: pedalling a cycle? (a) gravity (b) magnetic force (c) muscular force (d) friction
38. 38.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
39. 39.💪 Which force is at work: a rolling ball slows? (a) magnetic force (b) muscular force (c) gravity (d) friction
40. 40.True or false: a tug of war is a push. (a) False (b) True

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