Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 738 · 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 gravity? (a) a river flows downhill (b) a rolling ball slows (c) lifting a school bag (d) rubbing hands warms them
2. 2.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) friction (c) gravity (d) magnetic force
3. 3.Which of these is caused by magnetic force? (a) a fridge magnet sticks (b) rubbing hands warms them (c) a thrown ball comes down (d) brakes stop a bicycle
4. 4.💪 Which force is at work: rain falls to the ground? (a) gravity (b) friction (c) muscular force (d) magnetic force
5. 5.💪 Two children push a box to the right, one with 70 N and the other with 20 N. What is the net (total) force on the box, in newtons?
6. 6.💪 Which force pulls everything towards the Earth? (a) magnetism (b) friction (c) wind (d) gravity
7. 7.💪 Two children push a box to the right, one with 70 N and the other with 95 N. What is the net (total) force on the box, in newtons?
8. 8.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) balanced (c) gravity (d) unbalanced
9. 9.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) rain falls to the ground (c) a magnet picks up pins (d) a rolling ball slows
10. 10.💪 In a tug of war, one team pulls right with 100 N and the other pulls left with 75 N. What is the size of the net force, in newtons?
11. 11.💪 Two children push a box to the right, one with 30 N and the other with 25 N. What is the net (total) force on the box, in newtons?
12. 12.💪 Which force is at work: brakes stop a bicycle? (a) magnetic force (b) gravity (c) muscular force (d) friction
13. 13.True or false: closing a drawer is a pull. (a) True (b) False
14. 14.💪 A bag has a mass of 15 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
15. 15.Which of these is caused by friction? (a) a thrown ball comes down (b) shoes grip the floor (c) pedalling a cycle (d) a river flows downhill
16. 16.True or false: opening a drawer is a pull. (a) True (b) False
17. 17.💪 In a tug of war, one team pulls right with 20 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
18. 18.💪 A bag has a mass of 9 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
19. 19.💪 Which can a force NOT do? (a) start it moving (b) stop it moving (c) change its colour (d) change its shape
20. 20.Which of these is caused by gravity? (a) a compass needle turns (b) a magnet picks up pins (c) an apple falls down (d) brakes stop a bicycle
21. 21.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
22. 22.True or false: drawing up a well bucket is a push. (a) True (b) False
23. 23.Which of these is caused by friction? (a) a fridge magnet sticks (b) squeezing a lemon (c) a compass needle turns (d) rubbing hands warms them
24. 24.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) friction (c) muscular force (d) gravity
25. 25.True or false: pressing a doorbell is a push. (a) True (b) False
26. 26.True or false: pushing a swing is a push. (a) False (b) True
27. 27.Which of these is caused by friction? (a) lifting a school bag (b) an apple falls down (c) a rolling ball slows (d) a magnet picks up pins
28. 28.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
29. 29.True or false: a tug of war is a pull. (a) False (b) True
30. 30.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
31. 31.💪 A force is a … (a) unit of time (b) type of sound (c) kind of colour (d) push or a pull
32. 32.💪 Which force is at work: pedalling a cycle? (a) gravity (b) muscular force (c) magnetic force (d) friction
33. 33.💪 Which force is at work: a compass needle turns? (a) gravity (b) magnetic force (c) muscular force (d) friction
34. 34.💪 A bag has a mass of 21 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
35. 35.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) magnetic force (c) gravity (d) muscular force
36. 36.💪 In which unit do we measure force? (a) metre (m) (b) litre (L) (c) second (s) (d) newton (N)
37. 37.💪 A bag has a mass of 26 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
38. 38.Which of these is caused by friction? (a) brakes stop a bicycle (b) pedalling a cycle (c) an apple falls down (d) a magnet picks up pins
39. 39.💪 Two children push a box to the right, one with 65 N and the other with 80 N. What is the net (total) force on the box, in newtons?
40. 40.💪 A box weighs 160 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?

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