Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 932 · 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 friction? (a) an apple falls down (b) brakes stop a bicycle (c) rain falls to the ground (d) a thrown ball comes down
2. 2.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) a river flows downhill (c) a magnet picks up pins (d) lifting a school bag
3. 3.Which of these is caused by muscular force? (a) a compass needle turns (b) a fridge magnet sticks (c) lifting a school bag (d) brakes stop a bicycle
4. 4.True or false: hitting a cricket ball is a push. (a) True (b) False
5. 5.Which of these is caused by muscular force? (a) shoes grip the floor (b) pedalling a cycle (c) an apple falls down (d) a thrown ball comes down
6. 6.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
7. 7.💪 In a tug of war, one team pulls left with 95 N and the other pulls right with 80 N. What is the size of the net force, in newtons?
8. 8.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) balanced (c) unbalanced (d) gravity
9. 9.True or false: opening a drawer is a push. (a) False (b) True
10. 10.💪 Which force is at work: an apple falls down? (a) gravity (b) muscular force (c) friction (d) magnetic force
11. 11.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
12. 12.💪 Which force is at work: a rolling ball slows? (a) gravity (b) muscular force (c) magnetic force (d) friction
13. 13.💪 Two children push a box to the right, one with 45 N and the other with 50 N. What is the net (total) force on the box, in newtons?
14. 14.Which of these is caused by gravity? (a) a magnet picks up pins (b) a compass needle turns (c) a thrown ball comes down (d) pedalling a cycle
15. 15.True or false: a tug of war is a pull. (a) False (b) True
16. 16.💪 Which force pulls everything towards the Earth? (a) friction (b) magnetism (c) gravity (d) wind
17. 17.💪 Two children push a box to the right, one with 80 N and the other with 40 N. What is the net (total) force on the box, in newtons?
18. 18.Which of these is caused by gravity? (a) pedalling a cycle (b) a magnet picks up pins (c) an apple falls down (d) a rolling ball slows
19. 19.Which of these is caused by magnetic force? (a) rain falls to the ground (b) shoes grip the floor (c) pedalling a cycle (d) a compass needle turns
20. 20.💪 A cart is pulled to the right with 80 N and to the left with 85 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
21. 21.💪 Two children push a box to the right, one with 20 N and the other with 100 N. What is the net (total) force on the box, in newtons?
22. 22.💪 Which force is at work: rain falls to the ground? (a) friction (b) muscular force (c) gravity (d) magnetic force
23. 23.True or false: drawing up a well bucket is a pull. (a) False (b) True
24. 24.💪 A box weighs 370 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
25. 25.💪 A box weighs 20 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
26. 26.💪 A bag has a mass of 11 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
27. 27.True or false: closing a drawer is a pull. (a) False (b) True
28. 28.💪 A box weighs 450 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
29. 29.💪 A bag has a mass of 52 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
30. 30.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
31. 31.💪 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?
32. 32.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
33. 33.💪 In a tug of war, one team pulls right with 95 N and the other pulls left with 70 N. What is the size of the net force, in newtons?
34. 34.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) a fridge magnet sticks (c) a thrown ball comes down (d) shoes grip the floor
35. 35.💪 A box weighs 410 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
36. 36.💪 Two children push a box to the right, one with 60 N and the other with 30 N. What is the net (total) force on the box, in newtons?
37. 37.True or false: kicking a football is a push. (a) False (b) True
38. 38.💪 Which force is at work: a compass needle turns? (a) friction (b) gravity (c) muscular force (d) magnetic force
39. 39.💪 A force is a … (a) push or a pull (b) type of sound (c) kind of colour (d) unit of time
40. 40.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull

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