Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 47 · 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.💪 In a tug of war, one team pulls left with 15 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
2. 2.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) gravity (c) doubled (d) balanced
3. 3.True or false: pulling a cart is a pull. (a) True (b) False
4. 4.💪 Which force pulls everything towards the Earth? (a) friction (b) wind (c) gravity (d) magnetism
5. 5.💪 Which force is at work: pedalling a cycle? (a) magnetic force (b) friction (c) gravity (d) muscular force
6. 6.💪 A force is a … (a) unit of time (b) push or a pull (c) type of sound (d) kind of colour
7. 7.Which of these is caused by friction? (a) a river flows downhill (b) shoes grip the floor (c) pedalling a cycle (d) a thrown ball comes down
8. 8.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
9. 9.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
10. 10.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
11. 11.💪 Which force is at work: a rolling ball slows? (a) gravity (b) friction (c) muscular force (d) magnetic force
12. 12.True or false: pushing a trolley is a pull. (a) False (b) True
13. 13.💪 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?
14. 14.True or false: a tug of war is a push. (a) False (b) True
15. 15.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
16. 16.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
17. 17.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
18. 18.💪 A cart is pulled to the right with 25 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
19. 19.💪 In a tug of war, one team pulls left with 65 N and the other pulls right with 30 N. What is the size of the net force, in newtons?
20. 20.💪 A box weighs 450 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
21. 21.💪 In which unit do we measure force? (a) litre (L) (b) second (s) (c) newton (N) (d) metre (m)
22. 22.💪 Which force is at work: a river flows downhill? (a) friction (b) magnetic force (c) muscular force (d) gravity
23. 23.Which of these is caused by muscular force? (a) shoes grip the floor (b) rubbing hands warms them (c) a river flows downhill (d) pedalling a cycle
24. 24.True or false: kicking a football is a push. (a) False (b) True
25. 25.💪 Which force is at work: rain falls to the ground? (a) friction (b) magnetic force (c) gravity (d) muscular force
26. 26.💪 Which can a force NOT do? (a) start it moving (b) stop it moving (c) change its shape (d) change its colour
27. 27.💪 Which force is at work: an apple falls down? (a) muscular force (b) magnetic force (c) friction (d) gravity
28. 28.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
29. 29.💪 Two children push a box to the right, one with 15 N and the other with 10 N. What is the net (total) force on the box, in newtons?
30. 30.💪 A box weighs 580 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
31. 31.💪 In a tug of war, one team pulls left with 25 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
32. 32.💪 A box weighs 540 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
33. 33.💪 Which force is at work: lifting a school bag? (a) muscular force (b) magnetic force (c) gravity (d) friction
34. 34.True or false: pushing a swing is a pull. (a) True (b) False
35. 35.💪 A bag has a mass of 58 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
36. 36.Which of these is caused by gravity? (a) rubbing hands warms them (b) a thrown ball comes down (c) squeezing a lemon (d) brakes stop a bicycle
37. 37.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) friction (c) muscular force (d) gravity
38. 38.💪 A box weighs 190 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
39. 39.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
40. 40.True or false: hitting a cricket ball is a push. (a) False (b) True

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