Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 469 · 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 muscular force? (a) a river flows downhill (b) lifting a school bag (c) a thrown ball comes down (d) a compass needle turns
2. 2.💪 A cart is pulled to the right with 75 N and to the left with 70 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
3. 3.💪 A bag has a mass of 46 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
4. 4.Which of these is caused by magnetic force? (a) pedalling a cycle (b) a magnet picks up pins (c) brakes stop a bicycle (d) an apple falls down
5. 5.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
6. 6.Which of these is caused by friction? (a) brakes stop a bicycle (b) an apple falls down (c) rain falls to the ground (d) a magnet picks up pins
7. 7.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
8. 8.💪 Two children push a box to the right, one with 60 N and the other with 70 N. What is the net (total) force on the box, in newtons?
9. 9.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
10. 10.True or false: a tug of war is a push. (a) False (b) True
11. 11.💪 Which force is at work: shoes grip the floor? (a) friction (b) gravity (c) magnetic force (d) muscular force
12. 12.💪 Which force is at work: pedalling a cycle? (a) gravity (b) muscular force (c) friction (d) magnetic force
13. 13.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) doubled (c) unbalanced (d) balanced
14. 14.True or false: plucking a mango is a pull. (a) True (b) False
15. 15.Which of these is caused by friction? (a) squeezing a lemon (b) rubbing hands warms them (c) a river flows downhill (d) a fridge magnet sticks
16. 16.True or false: a tug of war is a pull. (a) True (b) False
17. 17.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) gravity (c) magnetic force (d) muscular force
18. 18.True or false: pulling a cart is a pull. (a) False (b) True
19. 19.💪 In a tug of war, one team pulls right with 75 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
20. 20.💪 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?
21. 21.💪 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?
22. 22.💪 A bag has a mass of 18 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
23. 23.💪 Which force pulls everything towards the Earth? (a) gravity (b) magnetism (c) wind (d) friction
24. 24.💪 A box weighs 200 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
25. 25.💪 A box weighs 170 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
26. 26.💪 Which force is at work: an apple falls down? (a) gravity (b) friction (c) muscular force (d) magnetic force
27. 27.True or false: closing a drawer is a pull. (a) True (b) False
28. 28.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
29. 29.💪 Which force is at work: a rolling ball slows? (a) gravity (b) muscular force (c) magnetic force (d) friction
30. 30.Which of these is caused by muscular force? (a) pedalling a cycle (b) shoes grip the floor (c) a thrown ball comes down (d) brakes stop a bicycle
31. 31.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) muscular force (c) friction (d) magnetic force
32. 32.💪 A bag has a mass of 40 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
33. 33.💪 In which unit do we measure force? (a) newton (N) (b) metre (m) (c) second (s) (d) litre (L)
34. 34.💪 A cart is pulled to the right with 75 N and to the left with 65 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
35. 35.💪 A box weighs 440 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
36. 36.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
37. 37.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) a compass needle turns (c) a river flows downhill (d) rain falls to the ground
38. 38.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) gravity (c) friction (d) magnetic force
39. 39.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
40. 40.True or false: closing a drawer is a push. (a) False (b) True

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