Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 342 · 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 a cart a push or a pull? (a) a push (b) a pull
2. 2.💪 A cart is pulled to the right with 35 N and to the left with 35 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
3. 3.💪 Which force is at work: brakes stop a bicycle? (a) gravity (b) friction (c) magnetic force (d) muscular force
4. 4.True or false: pushing a swing is a push. (a) True (b) False
5. 5.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
6. 6.Which of these is caused by friction? (a) a fridge magnet sticks (b) rubbing hands warms them (c) pedalling a cycle (d) squeezing a lemon
7. 7.True or false: opening a drawer is a push. (a) False (b) True
8. 8.💪 Two children push a box to the right, one with 30 N and the other with 20 N. What is the net (total) force on the box, in newtons?
9. 9.True or false: opening a drawer is a pull. (a) False (b) True
10. 10.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) doubled (c) gravity (d) balanced
11. 11.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
12. 12.Which of these is caused by gravity? (a) a compass needle turns (b) lifting a school bag (c) a magnet picks up pins (d) a thrown ball comes down
13. 13.💪 Which force is at work: a magnet picks up pins? (a) muscular force (b) friction (c) gravity (d) magnetic force
14. 14.💪 Which force is at work: a compass needle turns? (a) gravity (b) magnetic force (c) muscular force (d) friction
15. 15.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) friction (c) magnetic force (d) gravity
16. 16.Which of these is caused by magnetic force? (a) a thrown ball comes down (b) a magnet picks up pins (c) rubbing hands warms them (d) shoes grip the floor
17. 17.💪 Two children push a box to the right, one with 25 N and the other with 55 N. What is the net (total) force on the box, in newtons?
18. 18.💪 In which unit do we measure force? (a) second (s) (b) litre (L) (c) metre (m) (d) newton (N)
19. 19.True or false: pulling up your socks is a pull. (a) False (b) True
20. 20.True or false: a tug of war is a pull. (a) False (b) True
21. 21.💪 A box weighs 440 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
22. 22.💪 In a tug of war, one team pulls left with 15 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
23. 23.💪 Which force is at work: a river flows downhill? (a) muscular force (b) gravity (c) friction (d) magnetic force
24. 24.Which of these is caused by muscular force? (a) a rolling ball slows (b) a river flows downhill (c) lifting a school bag (d) an apple falls down
25. 25.True or false: plucking a mango is a push. (a) True (b) False
26. 26.💪 Which force pulls everything towards the Earth? (a) wind (b) friction (c) magnetism (d) gravity
27. 27.💪 A bag has a mass of 60 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
28. 28.💪 A box weighs 500 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
29. 29.💪 Two children push a box to the right, one with 70 N and the other with 40 N. What is the net (total) force on the box, in newtons?
30. 30.💪 In a tug of war, one team pulls left with 80 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
31. 31.True or false: pressing a doorbell is a push. (a) False (b) True
32. 32.💪 A force is a … (a) kind of colour (b) push or a pull (c) unit of time (d) type of sound
33. 33.💪 A bag has a mass of 3 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
34. 34.True or false: pulling up your socks is a push. (a) False (b) True
35. 35.True or false: pulling a cart is a push. (a) True (b) False
36. 36.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
37. 37.💪 A cart is pulled to the right with 20 N and to the left with 10 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
38. 38.💪 In a tug of war, one team pulls right with 75 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
39. 39.💪 Which force is at work: lifting a school bag? (a) muscular force (b) friction (c) gravity (d) magnetic force
40. 40.💪 Which force is at work: pedalling a cycle? (a) friction (b) gravity (c) muscular force (d) magnetic force

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