Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 439 · 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 cart is pulled to the right with 65 N and to the left with 50 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
2. 2.💪 Which force is at work: brakes stop a bicycle? (a) gravity (b) magnetic force (c) muscular force (d) friction
3. 3.True or false: a tug of war is a push. (a) False (b) True
4. 4.Which of these is caused by gravity? (a) an apple falls down (b) squeezing a lemon (c) rubbing hands warms them (d) lifting a school bag
5. 5.💪 Which force pulls everything towards the Earth? (a) magnetism (b) wind (c) gravity (d) friction
6. 6.Which of these is caused by magnetic force? (a) an apple falls down (b) shoes grip the floor (c) brakes stop a bicycle (d) a compass needle turns
7. 7.💪 Which can a force NOT do? (a) stop it moving (b) change its shape (c) start it moving (d) change its colour
8. 8.True or false: opening a drawer is a push. (a) True (b) False
9. 9.💪 A bag has a mass of 13 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
10. 10.💪 In a tug of war, one team pulls right with 30 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
11. 11.💪 In a tug of war, one team pulls right with 50 N and the other pulls left with 35 N. What is the size of the net force, in newtons?
12. 12.💪 A box weighs 50 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
13. 13.True or false: pushing a trolley is a pull. (a) False (b) True
14. 14.💪 A box weighs 500 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
15. 15.💪 In a tug of war, one team pulls left with 25 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
16. 16.Which of these is caused by gravity? (a) a magnet picks up pins (b) brakes stop a bicycle (c) rubbing hands warms them (d) rain falls to the ground
17. 17.Which of these is caused by magnetic force? (a) a fridge magnet sticks (b) a thrown ball comes down (c) shoes grip the floor (d) rain falls to the ground
18. 18.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
19. 19.True or false: closing a drawer is a pull. (a) False (b) True
20. 20.💪 A force is a … (a) unit of time (b) push or a pull (c) kind of colour (d) type of sound
21. 21.Which of these is caused by muscular force? (a) a rolling ball slows (b) shoes grip the floor (c) lifting a school bag (d) rubbing hands warms them
22. 22.💪 Which force is at work: a river flows downhill? (a) muscular force (b) gravity (c) friction (d) magnetic force
23. 23.💪 A bag has a mass of 5 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
24. 24.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
25. 25.True or false: pressing a doorbell is a push. (a) False (b) True
26. 26.💪 Two children push a box to the right, one with 90 N and the other with 15 N. What is the net (total) force on the box, in newtons?
27. 27.💪 Which force is at work: a magnet picks up pins? (a) friction (b) magnetic force (c) gravity (d) muscular force
28. 28.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) gravity (c) unbalanced (d) doubled
29. 29.💪 A bag has a mass of 46 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
30. 30.Which of these is caused by magnetic force? (a) a thrown ball comes down (b) rubbing hands warms them (c) brakes stop a bicycle (d) a magnet picks up pins
31. 31.💪 Which force is at work: a compass needle turns? (a) friction (b) gravity (c) magnetic force (d) muscular force
32. 32.True or false: plucking a mango is a push. (a) True (b) False
33. 33.💪 A bag has a mass of 23 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
34. 34.💪 Two children push a box to the right, one with 60 N and the other with 55 N. What is the net (total) force on the box, in newtons?
35. 35.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
36. 36.💪 A box weighs 190 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
37. 37.💪 Two children push a box to the right, one with 70 N and the other with 80 N. What is the net (total) force on the box, in newtons?
38. 38.True or false: pushing a swing is a pull. (a) True (b) False
39. 39.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) muscular force (c) gravity (d) friction
40. 40.Which of these is caused by gravity? (a) lifting a school bag (b) a river flows downhill (c) brakes stop a bicycle (d) a rolling ball slows

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