Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 219 · 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.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
2. 2.💪 Which force pulls everything towards the Earth? (a) wind (b) gravity (c) magnetism (d) friction
3. 3.💪 A cart is pulled to the right with 100 N and to the left with 95 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
4. 4.💪 A box weighs 90 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
5. 5.💪 Which can a force NOT do? (a) change its colour (b) start it moving (c) change its shape (d) stop it moving
6. 6.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) magnetic force (c) gravity (d) muscular force
7. 7.💪 A box weighs 410 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
8. 8.💪 Two children push a box to the right, one with 90 N and the other with 35 N. What is the net (total) force on the box, in newtons?
9. 9.Which of these is caused by magnetic force? (a) a thrown ball comes down (b) squeezing a lemon (c) brakes stop a bicycle (d) a compass needle turns
10. 10.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
11. 11.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
12. 12.True or false: pushing a swing is a pull. (a) False (b) True
13. 13.💪 A bag has a mass of 12 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
14. 14.Which of these is caused by gravity? (a) rubbing hands warms them (b) an apple falls down (c) squeezing a lemon (d) brakes stop a bicycle
15. 15.Which of these is caused by muscular force? (a) a thrown ball comes down (b) rubbing hands warms them (c) shoes grip the floor (d) lifting a school bag
16. 16.💪 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?
17. 17.💪 Which force is at work: a compass needle turns? (a) gravity (b) muscular force (c) magnetic force (d) friction
18. 18.💪 Which force is at work: squeezing a lemon? (a) magnetic force (b) friction (c) muscular force (d) gravity
19. 19.True or false: pulling a cart is a pull. (a) True (b) False
20. 20.💪 Which force is at work: a magnet picks up pins? (a) friction (b) magnetic force (c) muscular force (d) gravity
21. 21.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) balanced (c) gravity (d) unbalanced
22. 22.True or false: opening a drawer is a push. (a) True (b) False
23. 23.💪 In which unit do we measure force? (a) second (s) (b) newton (N) (c) litre (L) (d) metre (m)
24. 24.💪 Which force is at work: a rolling ball slows? (a) friction (b) magnetic force (c) muscular force (d) gravity
25. 25.💪 A box weighs 600 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
26. 26.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
27. 27.💪 Two children push a box to the right, one with 30 N and the other with 60 N. What is the net (total) force on the box, in newtons?
28. 28.💪 In a tug of war, one team pulls right with 65 N and the other pulls left with 55 N. What is the size of the net force, in newtons?
29. 29.Which of these is caused by gravity? (a) a compass needle turns (b) a fridge magnet sticks (c) a thrown ball comes down (d) brakes stop a bicycle
30. 30.💪 Which force is at work: lifting a school bag? (a) muscular force (b) magnetic force (c) friction (d) gravity
31. 31.True or false: pressing a doorbell is a push. (a) False (b) True
32. 32.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
33. 33.💪 A bag has a mass of 20 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
34. 34.True or false: hitting a cricket ball is a push. (a) False (b) True
35. 35.Which of these is caused by magnetic force? (a) squeezing a lemon (b) a rolling ball slows (c) brakes stop a bicycle (d) a fridge magnet sticks
36. 36.💪 Two children push a box to the right, one with 20 N and the other with 55 N. What is the net (total) force on the box, in newtons?
37. 37.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
38. 38.💪 A box weighs 590 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
39. 39.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
40. 40.💪 A bag has a mass of 28 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?

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