Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 259 · 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) a thrown ball comes down (b) a rolling ball slows (c) rain falls to the ground (d) pedalling a cycle
2. 2.💪 Two children push a box to the right, one with 100 N and the other with 50 N. What is the net (total) force on the box, in newtons?
3. 3.True or false: pushing a swing is a push. (a) True (b) False
4. 4.💪 In which unit do we measure force? (a) second (s) (b) metre (m) (c) litre (L) (d) newton (N)
5. 5.True or false: opening a drawer is a push. (a) True (b) False
6. 6.Which of these is caused by gravity? (a) a magnet picks up pins (b) squeezing a lemon (c) rubbing hands warms them (d) an apple falls down
7. 7.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
8. 8.💪 Two children push a box to the right, one with 60 N and the other with 75 N. What is the net (total) force on the box, in newtons?
9. 9.True or false: pulling a cart is a pull. (a) False (b) True
10. 10.💪 Two children push a box to the right, one with 15 N and the other with 65 N. What is the net (total) force on the box, in newtons?
11. 11.💪 Which force is at work: brakes stop a bicycle? (a) magnetic force (b) friction (c) muscular force (d) gravity
12. 12.True or false: plucking a mango is a push. (a) True (b) False
13. 13.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
14. 14.💪 In a tug of war, one team pulls right with 50 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
15. 15.💪 A box weighs 190 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
16. 16.True or false: pressing a doorbell is a pull. (a) False (b) True
17. 17.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) muscular force (c) friction (d) gravity
18. 18.💪 Which force is at work: a compass needle turns? (a) muscular force (b) friction (c) gravity (d) magnetic force
19. 19.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) unbalanced (c) gravity (d) doubled
20. 20.Which of these is caused by magnetic force? (a) a compass needle turns (b) a river flows downhill (c) rubbing hands warms them (d) squeezing a lemon
21. 21.💪 In a tug of war, one team pulls left with 30 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
22. 22.True or false: opening a drawer is a pull. (a) True (b) False
23. 23.Which of these is caused by gravity? (a) lifting a school bag (b) squeezing a lemon (c) a thrown ball comes down (d) rubbing hands warms them
24. 24.💪 A force is a … (a) kind of colour (b) type of sound (c) unit of time (d) push or a pull
25. 25.💪 A box weighs 210 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
26. 26.💪 A bag has a mass of 39 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
27. 27.💪 Which force is at work: squeezing a lemon? (a) friction (b) magnetic force (c) muscular force (d) gravity
28. 28.True or false: pressing a doorbell is a push. (a) False (b) True
29. 29.💪 A bag has a mass of 46 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
30. 30.💪 Which can a force NOT do? (a) change its shape (b) stop it moving (c) start it moving (d) change its colour
31. 31.💪 Which force is at work: rain falls to the ground? (a) gravity (b) muscular force (c) friction (d) magnetic force
32. 32.Which of these is caused by friction? (a) shoes grip the floor (b) an apple falls down (c) a river flows downhill (d) pedalling a cycle
33. 33.Which of these is caused by magnetic force? (a) rain falls to the ground (b) an apple falls down (c) a magnet picks up pins (d) pedalling a cycle
34. 34.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
35. 35.💪 Two children push a box to the right, one with 85 N and the other with 95 N. What is the net (total) force on the box, in newtons?
36. 36.💪 Which force pulls everything towards the Earth? (a) friction (b) gravity (c) magnetism (d) wind
37. 37.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
38. 38.💪 A box weighs 300 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
39. 39.💪 A box weighs 280 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
40. 40.💪 Which force is at work: a river flows downhill? (a) gravity (b) muscular force (c) magnetic force (d) friction

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