Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 903 · 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.True or false: drawing up a well bucket is a pull. (a) True (b) False
2. 2.True or false: closing a drawer is a pull. (a) False (b) True
3. 3.💪 Which force is at work: a river flows downhill? (a) muscular force (b) magnetic force (c) friction (d) gravity
4. 4.True or false: plucking a mango is a pull. (a) False (b) True
5. 5.True or false: pulling a cart is a push. (a) False (b) True
6. 6.Which of these is caused by muscular force? (a) a fridge magnet sticks (b) a compass needle turns (c) squeezing a lemon (d) rain falls to the ground
7. 7.True or false: pressing a doorbell is a push. (a) False (b) True
8. 8.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
9. 9.💪 A box weighs 460 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
10. 10.💪 Two children push a box to the right, one with 20 N and the other with 60 N. What is the net (total) force on the box, in newtons?
11. 11.True or false: closing a drawer is a push. (a) False (b) True
12. 12.True or false: pushing a trolley is a pull. (a) False (b) True
13. 13.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
14. 14.💪 A cart is pulled to the right with 50 N and to the left with 55 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
15. 15.💪 Which force is at work: a thrown ball comes down? (a) friction (b) gravity (c) magnetic force (d) muscular force
16. 16.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) gravity (c) muscular force (d) friction
17. 17.True or false: pushing a trolley is a push. (a) True (b) False
18. 18.💪 A bag has a mass of 40 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
19. 19.💪 Two children push a box to the right, one with 5 N and the other with 95 N. What is the net (total) force on the box, in newtons?
20. 20.💪 Which can a force NOT do? (a) start it moving (b) change its colour (c) stop it moving (d) change its shape
21. 21.True or false: pulling up your socks is a push. (a) True (b) False
22. 22.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) doubled (c) unbalanced (d) gravity
23. 23.Which of these is caused by friction? (a) shoes grip the floor (b) pedalling a cycle (c) a river flows downhill (d) a fridge magnet sticks
24. 24.💪 In a tug of war, one team pulls right with 25 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
25. 25.True or false: pressing a doorbell is a pull. (a) True (b) False
26. 26.Which of these is caused by magnetic force? (a) a river flows downhill (b) rubbing hands warms them (c) a magnet picks up pins (d) an apple falls down
27. 27.True or false: a tug of war is a push. (a) True (b) False
28. 28.💪 Two children push a box to the right, one with 15 N and the other with 65 N. What is the net (total) force on the box, in newtons?
29. 29.💪 Which force is at work: a magnet picks up pins? (a) muscular force (b) gravity (c) friction (d) magnetic force
30. 30.💪 A box weighs 30 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 30 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
32. 32.💪 A box weighs 350 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
33. 33.💪 Which force is at work: rubbing hands warms them? (a) friction (b) magnetic force (c) muscular force (d) gravity
34. 34.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
35. 35.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) gravity (c) muscular force (d) magnetic force
36. 36.💪 A box weighs 510 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
37. 37.💪 Which force is at work: squeezing a lemon? (a) friction (b) gravity (c) magnetic force (d) muscular force
38. 38.Which of these is caused by friction? (a) a compass needle turns (b) a fridge magnet sticks (c) a rolling ball slows (d) pedalling a cycle
39. 39.💪 Two children push a box to the right, one with 10 N and the other with 80 N. What is the net (total) force on the box, in newtons?
40. 40.Which of these is caused by muscular force? (a) an apple falls down (b) brakes stop a bicycle (c) lifting a school bag (d) a thrown ball comes down

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