Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 218 · 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.True or false: opening a drawer is a pull. (a) False (b) True
2. 2.True or false: pressing a doorbell is a pull. (a) True (b) False
3. 3.True or false: pressing a doorbell is a push. (a) True (b) False
4. 4.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
5. 5.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) muscular force (c) gravity (d) friction
6. 6.True or false: kicking a football is a push. (a) True (b) False
7. 7.💪 A cart is pulled to the right with 65 N and to the left with 60 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
8. 8.💪 In a tug of war, one team pulls left with 90 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
9. 9.True or false: closing a drawer is a push. (a) True (b) False
10. 10.💪 Which force is at work: a rolling ball slows? (a) magnetic force (b) friction (c) gravity (d) muscular force
11. 11.💪 Two children push a box to the right, one with 65 N and the other with 100 N. What is the net (total) force on the box, in newtons?
12. 12.💪 Two children push a box to the right, one with 10 N and the other with 35 N. What is the net (total) force on the box, in newtons?
13. 13.💪 Which force pulls everything towards the Earth? (a) magnetism (b) wind (c) friction (d) gravity
14. 14.💪 A force is a … (a) type of sound (b) kind of colour (c) push or a pull (d) unit of time
15. 15.💪 A box weighs 70 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
16. 16.💪 Which force is at work: rain falls to the ground? (a) gravity (b) friction (c) muscular force (d) magnetic force
17. 17.💪 Which force is at work: squeezing a lemon? (a) friction (b) gravity (c) magnetic force (d) muscular force
18. 18.💪 A cart is pulled to the right with 25 N and to the left with 20 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
19. 19.True or false: a tug of war is a pull. (a) False (b) True
20. 20.💪 A box weighs 160 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
21. 21.💪 In a tug of war, one team pulls left with 70 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
22. 22.💪 In a tug of war, one team pulls left with 50 N and the other pulls right with 35 N. What is the size of the net force, in newtons?
23. 23.💪 A bag has a mass of 20 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
24. 24.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
25. 25.💪 Which force is at work: a compass needle turns? (a) gravity (b) friction (c) muscular force (d) magnetic force
26. 26.💪 Which force is at work: a river flows downhill? (a) gravity (b) friction (c) muscular force (d) magnetic force
27. 27.Which of these is caused by friction? (a) brakes stop a bicycle (b) lifting a school bag (c) a magnet picks up pins (d) a compass needle turns
28. 28.Which of these is caused by magnetic force? (a) a fridge magnet sticks (b) a rolling ball slows (c) rubbing hands warms them (d) brakes stop a bicycle
29. 29.💪 A cart is pulled to the right with 60 N and to the left with 70 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
30. 30.💪 In a tug of war, one team pulls left with 100 N and the other pulls right with 30 N. What is the size of the net force, in newtons?
31. 31.Which of these is caused by muscular force? (a) an apple falls down (b) lifting a school bag (c) a magnet picks up pins (d) a fridge magnet sticks
32. 32.💪 A bag has a mass of 14 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
33. 33.True or false: pulling up your socks is a push. (a) False (b) True
34. 34.True or false: a tug of war is a push. (a) True (b) False
35. 35.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) doubled (c) balanced (d) unbalanced
36. 36.💪 Two children push a box to the right, one with 20 N and the other with 60 N. What is the net (total) force on the box, in newtons?
37. 37.Which of these is caused by gravity? (a) pedalling a cycle (b) rain falls to the ground (c) a fridge magnet sticks (d) lifting a school bag
38. 38.True or false: closing a drawer is a pull. (a) False (b) True
39. 39.💪 Which force is at work: rubbing hands warms them? (a) muscular force (b) gravity (c) magnetic force (d) friction
40. 40.Which of these is caused by friction? (a) an apple falls down (b) a river flows downhill (c) shoes grip the floor (d) a magnet picks up pins

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