Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 299 · 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 magnetic force? (a) squeezing a lemon (b) an apple falls down (c) a thrown ball comes down (d) a magnet picks up pins
2. 2.💪 Which force is at work: a river flows downhill? (a) friction (b) gravity (c) muscular force (d) magnetic force
3. 3.💪 In a tug of war, one team pulls left with 60 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
4. 4.💪 In a tug of war, one team pulls left with 70 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
5. 5.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
6. 6.💪 Which force is at work: rubbing hands warms them? (a) muscular force (b) friction (c) gravity (d) magnetic force
7. 7.True or false: opening a drawer is a push. (a) True (b) False
8. 8.💪 Which can a force NOT do? (a) change its colour (b) start it moving (c) stop it moving (d) change its shape
9. 9.💪 A cart is pulled to the right with 30 N and to the left with 25 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
10. 10.💪 Which force is at work: a thrown ball comes down? (a) friction (b) gravity (c) magnetic force (d) muscular force
11. 11.True or false: closing a drawer is a pull. (a) True (b) False
12. 12.💪 Which force is at work: shoes grip the floor? (a) friction (b) magnetic force (c) gravity (d) muscular force
13. 13.💪 A force is a … (a) type of sound (b) push or a pull (c) kind of colour (d) unit of time
14. 14.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
15. 15.💪 In which unit do we measure force? (a) newton (N) (b) litre (L) (c) metre (m) (d) second (s)
16. 16.💪 Which force is at work: a magnet picks up pins? (a) gravity (b) muscular force (c) magnetic force (d) friction
17. 17.💪 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) to the left (b) no net force (c) to the right
18. 18.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
19. 19.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
20. 20.True or false: hitting a cricket ball is a pull. (a) False (b) True
21. 21.💪 A box weighs 540 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
22. 22.💪 A box weighs 370 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
23. 23.💪 In a tug of war, one team pulls left with 95 N and the other pulls right with 55 N. What is the size of the net force, in newtons?
24. 24.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) balanced (c) unbalanced (d) doubled
25. 25.💪 A box weighs 450 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
26. 26.True or false: pulling a cart is a push. (a) False (b) True
27. 27.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
28. 28.💪 In a tug of war, one team pulls left with 25 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
29. 29.💪 In a tug of war, one team pulls right with 100 N and the other pulls left with 50 N. What is the size of the net force, in newtons?
30. 30.💪 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?
31. 31.True or false: plucking a mango is a pull. (a) False (b) True
32. 32.Which of these is caused by gravity? (a) rubbing hands warms them (b) a magnet picks up pins (c) a compass needle turns (d) a thrown ball comes down
33. 33.💪 In a tug of war, one team pulls left with 10 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
34. 34.Which of these is caused by muscular force? (a) rubbing hands warms them (b) lifting a school bag (c) a river flows downhill (d) a fridge magnet sticks
35. 35.💪 Two children push a box to the right, one with 90 N and the other with 50 N. What is the net (total) force on the box, in newtons?
36. 36.💪 A box weighs 10 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
37. 37.Which of these is caused by friction? (a) a fridge magnet sticks (b) pedalling a cycle (c) a rolling ball slows (d) lifting a school bag
38. 38.💪 Which force is at work: brakes stop a bicycle? (a) friction (b) muscular force (c) gravity (d) magnetic force
39. 39.💪 In a tug of war, one team pulls left with 50 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
40. 40.💪 Which force is at work: lifting a school bag? (a) muscular force (b) magnetic force (c) friction (d) gravity

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