Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 286 · 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 fridge magnet sticks (b) a magnet picks up pins (c) lifting a school bag (d) a rolling ball slows
2. 2.💪 A box weighs 370 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
3. 3.💪 Which force is at work: a magnet picks up pins? (a) friction (b) muscular force (c) magnetic force (d) gravity
4. 4.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
5. 5.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
6. 6.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
7. 7.💪 A box weighs 420 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
8. 8.💪 Which can a force NOT do? (a) change its shape (b) start it moving (c) change its colour (d) stop it moving
9. 9.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) muscular force (c) friction (d) gravity
10. 10.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
11. 11.💪 Two children push a box to the right, one with 60 N and the other with 10 N. What is the net (total) force on the box, in newtons?
12. 12.Which of these is caused by gravity? (a) shoes grip the floor (b) squeezing a lemon (c) a thrown ball comes down (d) a rolling ball slows
13. 13.Which of these is caused by muscular force? (a) an apple falls down (b) lifting a school bag (c) rain falls to the ground (d) a rolling ball slows
14. 14.💪 A cart is pulled to the right with 60 N and to the left with 55 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
15. 15.True or false: drawing up a well bucket is a pull. (a) False (b) True
16. 16.💪 A force is a … (a) unit of time (b) kind of colour (c) type of sound (d) push or a pull
17. 17.💪 Which force is at work: an apple falls down? (a) muscular force (b) friction (c) magnetic force (d) gravity
18. 18.True or false: pressing a doorbell is a push. (a) False (b) True
19. 19.True or false: pushing a trolley is a push. (a) False (b) True
20. 20.Which of these is caused by magnetic force? (a) a river flows downhill (b) shoes grip the floor (c) a thrown ball comes down (d) a compass needle turns
21. 21.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
22. 22.💪 A box weighs 430 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
23. 23.💪 Two children push a box to the right, one with 55 N and the other with 55 N. What is the net (total) force on the box, in newtons?
24. 24.💪 Which force pulls everything towards the Earth? (a) wind (b) magnetism (c) friction (d) gravity
25. 25.💪 In a tug of war, one team pulls right with 30 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
26. 26.💪 In which unit do we measure force? (a) metre (m) (b) newton (N) (c) second (s) (d) litre (L)
27. 27.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) friction (c) magnetic force (d) gravity
28. 28.True or false: hitting a cricket ball is a push. (a) True (b) False
29. 29.True or false: pulling up your socks is a pull. (a) True (b) False
30. 30.💪 A box weighs 460 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
31. 31.💪 Two children push a box to the right, one with 95 N and the other with 65 N. What is the net (total) force on the box, in newtons?
32. 32.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
33. 33.True or false: closing a drawer is a push. (a) True (b) False
34. 34.💪 Which force is at work: rubbing hands warms them? (a) magnetic force (b) muscular force (c) gravity (d) friction
35. 35.Which of these is caused by gravity? (a) rubbing hands warms them (b) rain falls to the ground (c) pedalling a cycle (d) brakes stop a bicycle
36. 36.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
37. 37.Which of these is caused by friction? (a) brakes stop a bicycle (b) a magnet picks up pins (c) an apple falls down (d) a compass needle turns
38. 38.💪 In a tug of war, one team pulls left with 40 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
39. 39.True or false: pushing a trolley is a pull. (a) False (b) True
40. 40.💪 A box weighs 540 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?

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