Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 805 · 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 23 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
2. 2.Which of these is caused by muscular force? (a) an apple falls down (b) lifting a school bag (c) a compass needle turns (d) a magnet picks up pins
3. 3.💪 A box weighs 530 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
4. 4.💪 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?
5. 5.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) muscular force (c) friction (d) gravity
6. 6.Which of these is caused by gravity? (a) a river flows downhill (b) a compass needle turns (c) shoes grip the floor (d) squeezing a lemon
7. 7.True or false: pushing a swing is a pull. (a) True (b) False
8. 8.💪 Which force is at work: rubbing hands warms them? (a) magnetic force (b) friction (c) gravity (d) muscular force
9. 9.💪 A cart is pulled to the right with 40 N and to the left with 35 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
10. 10.💪 A box weighs 160 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
11. 11.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
12. 12.True or false: plucking a mango is a push. (a) False (b) True
13. 13.Which of these is caused by magnetic force? (a) shoes grip the floor (b) squeezing a lemon (c) an apple falls down (d) a fridge magnet sticks
14. 14.💪 Two children push a box to the right, one with 60 N and the other with 95 N. What is the net (total) force on the box, in newtons?
15. 15.💪 Which force is at work: shoes grip the floor? (a) friction (b) gravity (c) muscular force (d) magnetic force
16. 16.💪 Which force is at work: an apple falls down? (a) magnetic force (b) muscular force (c) friction (d) gravity
17. 17.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
18. 18.True or false: opening a drawer is a push. (a) True (b) False
19. 19.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
20. 20.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
21. 21.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) friction (c) magnetic force (d) gravity
22. 22.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) balanced (c) unbalanced (d) doubled
23. 23.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
24. 24.💪 Two children push a box to the right, one with 30 N and the other with 5 N. What is the net (total) force on the box, in newtons?
25. 25.True or false: pushing a trolley is a pull. (a) False (b) True
26. 26.True or false: closing a drawer is a push. (a) True (b) False
27. 27.💪 In which unit do we measure force? (a) newton (N) (b) litre (L) (c) second (s) (d) metre (m)
28. 28.💪 A bag has a mass of 51 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
29. 29.💪 Two children push a box to the right, one with 5 N and the other with 40 N. What is the net (total) force on the box, in newtons?
30. 30.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
31. 31.💪 Two children push a box to the right, one with 75 N and the other with 35 N. What is the net (total) force on the box, in newtons?
32. 32.💪 A box weighs 50 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
33. 33.💪 Which can a force NOT do? (a) change its colour (b) change its shape (c) stop it moving (d) start it moving
34. 34.True or false: kicking a football is a pull. (a) True (b) False
35. 35.💪 Two children push a box to the right, one with 70 N and the other with 60 N. What is the net (total) force on the box, in newtons?
36. 36.True or false: pushing a swing is a push. (a) True (b) False
37. 37.Which of these is caused by muscular force? (a) squeezing a lemon (b) a thrown ball comes down (c) a rolling ball slows (d) shoes grip the floor
38. 38.Which of these is caused by gravity? (a) an apple falls down (b) lifting a school bag (c) pedalling a cycle (d) shoes grip the floor
39. 39.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
40. 40.💪 A bag has a mass of 40 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?

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