Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 379 · 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.💪 A bag has a mass of 48 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
2. 2.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
3. 3.💪 Which force is at work: a magnet picks up pins? (a) gravity (b) muscular force (c) friction (d) magnetic force
4. 4.Which of these is caused by gravity? (a) brakes stop a bicycle (b) a compass needle turns (c) an apple falls down (d) a magnet picks up pins
5. 5.Which of these is caused by magnetic force? (a) a compass needle turns (b) pedalling a cycle (c) a rolling ball slows (d) a thrown ball comes down
6. 6.True or false: pressing a doorbell is a pull. (a) True (b) False
7. 7.💪 Two children push a box to the right, one with 10 N and the other with 70 N. What is the net (total) force on the box, in newtons?
8. 8.True or false: hitting a cricket ball is a pull. (a) False (b) True
9. 9.💪 Which can a force NOT do? (a) stop it moving (b) change its shape (c) start it moving (d) change its colour
10. 10.💪 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?
11. 11.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) balanced (c) unbalanced (d) gravity
12. 12.💪 Which force is at work: pedalling a cycle? (a) gravity (b) magnetic force (c) muscular force (d) friction
13. 13.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
14. 14.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
15. 15.💪 In a tug of war, one team pulls right with 95 N and the other pulls left with 30 N. What is the size of the net force, in newtons?
16. 16.💪 Two children push a box to the right, one with 5 N and the other with 5 N. What is the net (total) force on the box, in newtons?
17. 17.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
18. 18.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
19. 19.💪 Which force pulls everything towards the Earth? (a) friction (b) wind (c) gravity (d) magnetism
20. 20.True or false: hitting a cricket ball is a push. (a) False (b) True
21. 21.💪 Which force is at work: a river flows downhill? (a) gravity (b) magnetic force (c) muscular force (d) friction
22. 22.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) magnetic force (c) friction (d) gravity
23. 23.True or false: drawing up a well bucket is a pull. (a) False (b) True
24. 24.Which of these is caused by magnetic force? (a) a river flows downhill (b) pedalling a cycle (c) a fridge magnet sticks (d) rubbing hands warms them
25. 25.Which of these is caused by muscular force? (a) rain falls to the ground (b) brakes stop a bicycle (c) lifting a school bag (d) a compass needle turns
26. 26.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) gravity (c) friction (d) muscular force
27. 27.💪 A cart is pulled to the right with 80 N and to the left with 70 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
28. 28.💪 A force is a … (a) kind of colour (b) push or a pull (c) unit of time (d) type of sound
29. 29.💪 In which unit do we measure force? (a) metre (m) (b) second (s) (c) litre (L) (d) newton (N)
30. 30.Which of these is caused by friction? (a) a fridge magnet sticks (b) squeezing a lemon (c) brakes stop a bicycle (d) a thrown ball comes down
31. 31.True or false: a tug of war is a pull. (a) False (b) True
32. 32.💪 A box weighs 420 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
33. 33.💪 A bag has a mass of 35 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
34. 34.💪 A box weighs 470 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
35. 35.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
36. 36.True or false: pulling up your socks is a pull. (a) True (b) False
37. 37.True or false: drawing up a well bucket is a push. (a) False (b) True
38. 38.Which of these is caused by muscular force? (a) squeezing a lemon (b) rubbing hands warms them (c) an apple falls down (d) a fridge magnet sticks
39. 39.💪 Which force is at work: lifting a school bag? (a) gravity (b) muscular force (c) friction (d) magnetic force
40. 40.💪 Which force is at work: an apple falls down? (a) friction (b) gravity (c) magnetic force (d) muscular force

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