Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 222 · 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.💪 In a tug of war, one team pulls left with 25 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
2. 2.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) unbalanced (c) balanced (d) gravity
3. 3.True or false: plucking a mango is a pull. (a) False (b) True
4. 4.True or false: kicking a football is a push. (a) True (b) False
5. 5.💪 Which can a force NOT do? (a) start it moving (b) change its colour (c) stop it moving (d) change its shape
6. 6.💪 A force is a … (a) unit of time (b) type of sound (c) kind of colour (d) push or a pull
7. 7.💪 A cart is pulled to the right with 50 N and to the left with 35 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
8. 8.Which of these is caused by gravity? (a) a rolling ball slows (b) a thrown ball comes down (c) a fridge magnet sticks (d) a compass needle turns
9. 9.True or false: pressing a doorbell is a push. (a) False (b) True
10. 10.True or false: pulling a cart is a pull. (a) False (b) True
11. 11.💪 In which unit do we measure force? (a) litre (L) (b) metre (m) (c) second (s) (d) newton (N)
12. 12.True or false: pushing a swing is a pull. (a) True (b) False
13. 13.True or false: closing a drawer is a push. (a) False (b) True
14. 14.💪 In a tug of war, one team pulls left with 70 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
15. 15.True or false: a tug of war is a push. (a) False (b) True
16. 16.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) muscular force (c) friction (d) gravity
17. 17.Which of these is caused by muscular force? (a) rain falls to the ground (b) shoes grip the floor (c) an apple falls down (d) pedalling a cycle
18. 18.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
19. 19.💪 Two children push a box to the right, one with 30 N and the other with 60 N. What is the net (total) force on the box, in newtons?
20. 20.💪 Which force is at work: a thrown ball comes down? (a) friction (b) gravity (c) muscular force (d) magnetic force
21. 21.💪 In a tug of war, one team pulls right with 10 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
22. 22.💪 Which force is at work: an apple falls down? (a) friction (b) muscular force (c) magnetic force (d) gravity
23. 23.💪 Which force is at work: a rolling ball slows? (a) magnetic force (b) muscular force (c) gravity (d) friction
24. 24.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
25. 25.True or false: pulling up your socks is a push. (a) False (b) True
26. 26.💪 Two children push a box to the right, one with 5 N and the other with 35 N. What is the net (total) force on the box, in newtons?
27. 27.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
28. 28.💪 A cart is pulled to the right with 80 N and to the left with 70 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
29. 29.Which of these is caused by friction? (a) a magnet picks up pins (b) pedalling a cycle (c) a fridge magnet sticks (d) rubbing hands warms them
30. 30.💪 Which force is at work: rain falls to the ground? (a) friction (b) muscular force (c) magnetic force (d) gravity
31. 31.💪 In a tug of war, one team pulls right with 30 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
32. 32.True or false: plucking a mango is a push. (a) True (b) False
33. 33.💪 Two children push a box to the right, one with 55 N and the other with 5 N. What is the net (total) force on the box, in newtons?
34. 34.💪 Two children push a box to the right, one with 10 N and the other with 50 N. What is the net (total) force on the box, in newtons?
35. 35.True or false: pulling up your socks is a pull. (a) False (b) True
36. 36.💪 Which force is at work: a magnet picks up pins? (a) magnetic force (b) muscular force (c) friction (d) gravity
37. 37.💪 A box weighs 580 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
38. 38.💪 In a tug of war, one team pulls right with 70 N and the other pulls left with 50 N. What is the size of the net force, in newtons?
39. 39.💪 A cart is pulled to the right with 30 N and to the left with 45 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
40. 40.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull

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