Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 323 · 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 40 N and the other with 55 N. What is the net (total) force on the box, in newtons?
2. 2.💪 In a tug of war, one team pulls left with 80 N and the other pulls right with 65 N. What is the size of the net force, in newtons?
3. 3.💪 Which force is at work: a rolling ball slows? (a) friction (b) muscular force (c) magnetic force (d) gravity
4. 4.💪 In a tug of war, one team pulls left with 95 N and the other pulls right with 50 N. What is the size of the net force, in newtons?
5. 5.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
6. 6.True or false: plucking a mango is a pull. (a) True (b) False
7. 7.True or false: plucking a mango is a push. (a) True (b) False
8. 8.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
9. 9.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
10. 10.💪 Two children push a box to the right, one with 50 N and the other with 20 N. What is the net (total) force on the box, in newtons?
11. 11.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
12. 12.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) gravity (c) muscular force (d) friction
13. 13.💪 A cart is pulled to the right with 60 N and to the left with 65 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
14. 14.💪 A cart is pulled to the right with 30 N and to the left with 40 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
15. 15.Which of these is caused by gravity? (a) a river flows downhill (b) pedalling a cycle (c) brakes stop a bicycle (d) a rolling ball slows
16. 16.💪 Which can a force NOT do? (a) change its colour (b) change its shape (c) stop it moving (d) start it moving
17. 17.💪 In a tug of war, one team pulls right with 15 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
18. 18.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
19. 19.True or false: pulling a cart is a pull. (a) False (b) True
20. 20.💪 In which unit do we measure force? (a) second (s) (b) metre (m) (c) litre (L) (d) newton (N)
21. 21.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) gravity (c) magnetic force (d) friction
22. 22.True or false: pushing a trolley is a push. (a) True (b) False
23. 23.Which of these is caused by muscular force? (a) a river flows downhill (b) lifting a school bag (c) an apple falls down (d) rain falls to the ground
24. 24.True or false: pushing a swing is a push. (a) True (b) False
25. 25.💪 A box weighs 60 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
26. 26.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
27. 27.💪 Which force is at work: brakes stop a bicycle? (a) gravity (b) muscular force (c) friction (d) magnetic force
28. 28.💪 In a tug of war, one team pulls right with 35 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
29. 29.💪 A box weighs 20 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
30. 30.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
31. 31.Which of these is caused by friction? (a) a magnet picks up pins (b) a rolling ball slows (c) an apple falls down (d) a river flows downhill
32. 32.True or false: pushing a trolley is a pull. (a) False (b) True
33. 33.Which of these is caused by friction? (a) shoes grip the floor (b) a magnet picks up pins (c) lifting a school bag (d) an apple falls down
34. 34.💪 Two children push a box to the right, one with 85 N and the other with 30 N. What is the net (total) force on the box, in newtons?
35. 35.💪 A force is a … (a) kind of colour (b) unit of time (c) push or a pull (d) type of sound
36. 36.💪 A bag has a mass of 56 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
37. 37.💪 A cart is pulled to the right with 45 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
38. 38.💪 Which force is at work: a fridge magnet sticks? (a) gravity (b) friction (c) magnetic force (d) muscular force
39. 39.Which of these is caused by magnetic force? (a) rain falls to the ground (b) rubbing hands warms them (c) an apple falls down (d) a magnet picks up pins
40. 40.💪 A bag has a mass of 29 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?

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