Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 694 · 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.💪 In a tug of war, one team pulls right with 70 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
2. 2.💪 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?
3. 3.💪 Which force is at work: a magnet picks up pins? (a) magnetic force (b) friction (c) gravity (d) muscular force
4. 4.💪 A box weighs 100 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
5. 5.True or false: hitting a cricket ball is a push. (a) True (b) False
6. 6.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) muscular force (c) gravity (d) friction
7. 7.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
8. 8.Which of these is caused by friction? (a) rain falls to the ground (b) a magnet picks up pins (c) a rolling ball slows (d) a river flows downhill
9. 9.Which of these is caused by muscular force? (a) rubbing hands warms them (b) rain falls to the ground (c) a river flows downhill (d) pedalling a cycle
10. 10.True or false: a tug of war is a push. (a) True (b) False
11. 11.💪 In a tug of war, one team pulls right with 80 N and the other pulls left with 65 N. What is the size of the net force, in newtons?
12. 12.Which of these is caused by gravity? (a) rain falls to the ground (b) shoes grip the floor (c) squeezing a lemon (d) lifting a school bag
13. 13.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
14. 14.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
15. 15.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) gravity (c) friction (d) muscular force
16. 16.Which of these is caused by friction? (a) squeezing a lemon (b) pedalling a cycle (c) a magnet picks up pins (d) shoes grip the floor
17. 17.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
18. 18.💪 Two children push a box to the right, one with 65 N and the other with 90 N. What is the net (total) force on the box, in newtons?
19. 19.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
20. 20.True or false: pushing a swing is a push. (a) False (b) True
21. 21.True or false: pressing a doorbell is a push. (a) True (b) False
22. 22.True or false: closing a drawer is a push. (a) False (b) True
23. 23.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
24. 24.Which of these is caused by gravity? (a) lifting a school bag (b) pedalling a cycle (c) a compass needle turns (d) a thrown ball comes down
25. 25.💪 Two children push a box to the right, one with 65 N and the other with 45 N. What is the net (total) force on the box, in newtons?
26. 26.💪 In a tug of war, one team pulls right with 25 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
27. 27.💪 In a tug of war, one team pulls right with 25 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
28. 28.💪 Which force pulls everything towards the Earth? (a) friction (b) wind (c) magnetism (d) gravity
29. 29.💪 A force is a … (a) type of sound (b) kind of colour (c) unit of time (d) push or a pull
30. 30.True or false: drawing up a well bucket is a pull. (a) False (b) True
31. 31.💪 Which force is at work: a river flows downhill? (a) friction (b) magnetic force (c) muscular force (d) gravity
32. 32.Which of these is caused by gravity? (a) squeezing a lemon (b) pedalling a cycle (c) an apple falls down (d) shoes grip the floor
33. 33.True or false: pulling a cart is a push. (a) False (b) True
34. 34.💪 Two children push a box to the right, one with 15 N and the other with 75 N. What is the net (total) force on the box, in newtons?
35. 35.💪 A box weighs 540 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
36. 36.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
37. 37.💪 Two children push a box to the right, one with 90 N and the other with 15 N. What is the net (total) force on the box, in newtons?
38. 38.💪 Which force is at work: brakes stop a bicycle? (a) friction (b) muscular force (c) gravity (d) magnetic force
39. 39.💪 Two children push a box to the right, one with 25 N and the other with 50 N. What is the net (total) force on the box, in newtons?
40. 40.Which of these is caused by magnetic force? (a) squeezing a lemon (b) a rolling ball slows (c) a magnet picks up pins (d) an apple falls down

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