Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 803 · 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 20 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) balanced (b) unbalanced (c) doubled (d) gravity
3. 3.💪 Which force pulls everything towards the Earth? (a) magnetism (b) gravity (c) wind (d) friction
4. 4.💪 A force is a … (a) type of sound (b) kind of colour (c) push or a pull (d) unit of time
5. 5.💪 A bag has a mass of 31 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
6. 6.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
7. 7.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
8. 8.True or false: pushing a trolley is a push. (a) False (b) True
9. 9.💪 In which unit do we measure force? (a) metre (m) (b) litre (L) (c) second (s) (d) newton (N)
10. 10.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) muscular force (c) magnetic force (d) friction
11. 11.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
12. 12.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) shoes grip the floor (c) a thrown ball comes down (d) a fridge magnet sticks
13. 13.💪 A box weighs 110 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
14. 14.💪 In a tug of war, one team pulls right with 80 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
15. 15.True or false: pushing a swing is a push. (a) True (b) False
16. 16.💪 A cart is pulled to the right with 95 N and to the left with 90 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
17. 17.True or false: pressing a doorbell is a pull. (a) False (b) True
18. 18.💪 A cart is pulled to the right with 65 N and to the left with 50 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
19. 19.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) muscular force (c) gravity (d) friction
20. 20.Which of these is caused by magnetic force? (a) pedalling a cycle (b) brakes stop a bicycle (c) an apple falls down (d) a compass needle turns
21. 21.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
22. 22.Which of these is caused by magnetic force? (a) lifting a school bag (b) a magnet picks up pins (c) a thrown ball comes down (d) pedalling a cycle
23. 23.💪 A cart is pulled to the right with 50 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
24. 24.💪 Two children push a box to the right, one with 85 N and the other with 55 N. What is the net (total) force on the box, in newtons?
25. 25.💪 In a tug of war, one team pulls right with 90 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
26. 26.💪 Which force is at work: shoes grip the floor? (a) friction (b) magnetic force (c) muscular force (d) gravity
27. 27.💪 A cart is pulled to the right with 35 N and to the left with 30 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
28. 28.💪 A bag has a mass of 2 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
29. 29.💪 Two children push a box to the right, one with 20 N and the other with 50 N. What is the net (total) force on the box, in newtons?
30. 30.💪 A bag has a mass of 14 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
31. 31.💪 Two children push a box to the right, one with 40 N and the other with 35 N. What is the net (total) force on the box, in newtons?
32. 32.💪 Two children push a box to the right, one with 55 N and the other with 35 N. What is the net (total) force on the box, in newtons?
33. 33.💪 In a tug of war, one team pulls right with 95 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
34. 34.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
35. 35.💪 Two children push a box to the right, one with 65 N and the other with 60 N. What is the net (total) force on the box, in newtons?
36. 36.True or false: a tug of war is a push. (a) True (b) False
37. 37.Which of these is caused by friction? (a) a river flows downhill (b) a thrown ball comes down (c) shoes grip the floor (d) pedalling a cycle
38. 38.Which of these is caused by muscular force? (a) a magnet picks up pins (b) lifting a school bag (c) brakes stop a bicycle (d) shoes grip the floor
39. 39.Which of these is caused by muscular force? (a) a rolling ball slows (b) rubbing hands warms them (c) a magnet picks up pins (d) pedalling a cycle
40. 40.💪 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?

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