Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 600 · 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 49 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
2. 2.💪 A bag has a mass of 7 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
3. 3.💪 In a tug of war, one team pulls right with 15 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
4. 4.💪 A box weighs 460 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
5. 5.💪 Two children push a box to the right, one with 100 N and the other with 5 N. What is the net (total) force on the box, in newtons?
6. 6.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) magnetic force (c) gravity (d) friction
7. 7.💪 Which force is at work: squeezing a lemon? (a) gravity (b) friction (c) muscular force (d) magnetic force
8. 8.💪 Which force is at work: a rolling ball slows? (a) gravity (b) muscular force (c) friction (d) magnetic force
9. 9.💪 A cart is pulled to the right with 60 N and to the left with 60 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
10. 10.True or false: kicking a football is a pull. (a) True (b) False
11. 11.💪 In a tug of war, one team pulls left with 25 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
12. 12.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
13. 13.True or false: pulling a cart is a push. (a) True (b) False
14. 14.💪 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?
15. 15.True or false: drawing up a well bucket is a pull. (a) False (b) True
16. 16.Which of these is caused by friction? (a) an apple falls down (b) a rolling ball slows (c) pedalling a cycle (d) a magnet picks up pins
17. 17.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
18. 18.💪 Which can a force NOT do? (a) stop it moving (b) change its colour (c) start it moving (d) change its shape
19. 19.True or false: plucking a mango is a push. (a) False (b) True
20. 20.💪 In which unit do we measure force? (a) newton (N) (b) litre (L) (c) metre (m) (d) second (s)
21. 21.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) gravity (c) doubled (d) balanced
22. 22.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
23. 23.💪 Which force is at work: lifting a school bag? (a) gravity (b) magnetic force (c) muscular force (d) friction
24. 24.💪 A cart is pulled to the right with 50 N and to the left with 45 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
25. 25.💪 Two children push a box to the right, one with 30 N and the other with 20 N. What is the net (total) force on the box, in newtons?
26. 26.💪 A bag has a mass of 59 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
27. 27.Which of these is caused by friction? (a) rubbing hands warms them (b) a thrown ball comes down (c) a river flows downhill (d) rain falls to the ground
28. 28.True or false: pulling up your socks is a pull. (a) False (b) True
29. 29.True or false: pulling a cart 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.💪 Two children push a box to the right, one with 65 N and the other with 90 N. What is the net (total) force on the box, in newtons?
32. 32.💪 A cart is pulled to the right with 25 N and to the left with 10 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
33. 33.💪 A box weighs 530 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
34. 34.💪 A force is a … (a) unit of time (b) type of sound (c) push or a pull (d) kind of colour
35. 35.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
36. 36.💪 Which force is at work: a compass needle turns? (a) gravity (b) friction (c) magnetic force (d) muscular force
37. 37.💪 A box weighs 220 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
38. 38.True or false: pushing a swing is a pull. (a) True (b) False
39. 39.💪 A box weighs 10 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
40. 40.True or false: closing a drawer is a pull. (a) True (b) False

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