Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 782 · 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.Which of these is caused by magnetic force? (a) an apple falls down (b) lifting a school bag (c) a compass needle turns (d) a river flows downhill
2. 2.💪 A cart is pulled to the right with 95 N and to the left with 100 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
3. 3.💪 A bag has a mass of 35 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
4. 4.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
5. 5.💪 A box weighs 590 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
6. 6.💪 In which unit do we measure force? (a) newton (N) (b) metre (m) (c) second (s) (d) litre (L)
7. 7.💪 A box weighs 270 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
8. 8.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
9. 9.💪 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?
10. 10.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
11. 11.Which of these is caused by gravity? (a) rubbing hands warms them (b) a rolling ball slows (c) a river flows downhill (d) a magnet picks up pins
12. 12.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
13. 13.💪 In a tug of war, one team pulls right with 25 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
14. 14.💪 A bag has a mass of 47 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
15. 15.💪 A bag has a mass of 49 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
16. 16.💪 A bag has a mass of 16 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 50 N and the other with 55 N. What is the net (total) force on the box, in newtons?
18. 18.True or false: plucking a mango is a push. (a) True (b) False
19. 19.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
20. 20.💪 Which force is at work: a rolling ball slows? (a) gravity (b) friction (c) magnetic force (d) muscular force
21. 21.💪 Which can a force NOT do? (a) stop it moving (b) change its colour (c) start it moving (d) change its shape
22. 22.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
23. 23.💪 In a tug of war, one team pulls left with 60 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
24. 24.💪 Which force is at work: an apple falls down? (a) muscular force (b) magnetic force (c) gravity (d) friction
25. 25.True or false: plucking a mango is a pull. (a) False (b) True
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: a river flows downhill? (a) magnetic force (b) friction (c) muscular force (d) gravity
28. 28.💪 A cart is pulled to the right with 80 N and to the left with 90 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
29. 29.💪 Which force is at work: brakes stop a bicycle? (a) magnetic force (b) friction (c) muscular force (d) gravity
30. 30.💪 In a tug of war, one team pulls right with 40 N and the other pulls left with 35 N. What is the size of the net force, in newtons?
31. 31.💪 A box weighs 130 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
32. 32.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) friction (c) gravity (d) magnetic force
33. 33.💪 A bag has a mass of 17 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
34. 34.Which of these is caused by magnetic force? (a) rain falls to the ground (b) a magnet picks up pins (c) an apple falls down (d) lifting a school bag
35. 35.Which of these is caused by muscular force? (a) squeezing a lemon (b) a compass needle turns (c) a fridge magnet sticks (d) an apple falls down
36. 36.💪 In a tug of war, one team pulls right with 35 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
37. 37.Which of these is caused by friction? (a) lifting a school bag (b) a fridge magnet sticks (c) a thrown ball comes down (d) a rolling ball slows
38. 38.💪 Which force is at work: a magnet picks up pins? (a) muscular force (b) magnetic force (c) gravity (d) friction
39. 39.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
40. 40.True or false: a tug of war is a push. (a) True (b) False

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