Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 232 · 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 up your socks a push or a pull? (a) a push (b) a pull
2. 2.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) lifting a school bag (c) an apple falls down (d) a thrown ball comes down
3. 3.Which of these is caused by friction? (a) a river flows downhill (b) an apple falls down (c) a thrown ball comes down (d) rubbing hands warms them
4. 4.💪 In a tug of war, one team pulls right with 40 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
5. 5.True or false: a tug of war is a pull. (a) True (b) False
6. 6.Which of these is caused by gravity? (a) brakes stop a bicycle (b) lifting a school bag (c) rain falls to the ground (d) a magnet picks up pins
7. 7.💪 Two children push a box to the right, one with 40 N and the other with 70 N. What is the net (total) force on the box, in newtons?
8. 8.💪 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) to the right (c) no net force
9. 9.💪 Which force is at work: a fridge magnet sticks? (a) gravity (b) magnetic force (c) muscular force (d) friction
10. 10.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) doubled (c) unbalanced (d) balanced
11. 11.💪 Which force is at work: pedalling a cycle? (a) friction (b) gravity (c) magnetic force (d) muscular force
12. 12.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
13. 13.💪 A cart is pulled to the right with 90 N and to the left with 85 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
14. 14.💪 In a tug of war, one team pulls left with 30 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
15. 15.Which of these is caused by friction? (a) squeezing a lemon (b) brakes stop a bicycle (c) rain falls to the ground (d) an apple falls down
16. 16.💪 A bag has a mass of 60 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
17. 17.💪 Two children push a box to the right, one with 15 N and the other with 10 N. What is the net (total) force on the box, in newtons?
18. 18.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) muscular force (c) gravity (d) friction
19. 19.💪 In which unit do we measure force? (a) second (s) (b) metre (m) (c) newton (N) (d) litre (L)
20. 20.💪 A cart is pulled to the right with 25 N and to the left with 30 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
21. 21.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
22. 22.💪 Two children push a box to the right, one with 20 N and the other with 25 N. What is the net (total) force on the box, in newtons?
23. 23.True or false: pulling up your socks is a pull. (a) True (b) False
24. 24.💪 Two children push a box to the right, one with 100 N and the other with 60 N. What is the net (total) force on the box, in newtons?
25. 25.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
26. 26.Which of these is caused by friction? (a) rain falls to the ground (b) a rolling ball slows (c) a river flows downhill (d) a thrown ball comes down
27. 27.💪 Which force is at work: brakes stop a bicycle? (a) magnetic force (b) gravity (c) friction (d) muscular force
28. 28.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
29. 29.True or false: hitting a cricket ball is a pull. (a) True (b) False
30. 30.💪 In a tug of war, one team pulls right with 85 N and the other pulls left with 75 N. What is the size of the net force, in newtons?
31. 31.💪 Which can a force NOT do? (a) change its colour (b) change its shape (c) stop it moving (d) start it moving
32. 32.💪 Which force is at work: shoes grip the floor? (a) gravity (b) muscular force (c) magnetic force (d) friction
33. 33.True or false: pushing a swing is a pull. (a) False (b) True
34. 34.💪 A force is a … (a) unit of time (b) kind of colour (c) push or a pull (d) type of sound
35. 35.💪 A bag has a mass of 11 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
36. 36.True or false: pulling a cart is a push. (a) True (b) False
37. 37.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
38. 38.True or false: pulling up your socks is a push. (a) True (b) False
39. 39.💪 Which force pulls everything towards the Earth? (a) wind (b) gravity (c) magnetism (d) friction
40. 40.💪 Two children push a box to the right, one with 80 N and the other with 65 N. What is the net (total) force on the box, in newtons?

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