Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 146 · 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.Which of these is caused by friction? (a) lifting a school bag (b) a magnet picks up pins (c) a compass needle turns (d) a rolling ball slows
2. 2.💪 In a tug of war, one team pulls right with 55 N and the other pulls left with 45 N. What is the size of the net force, in newtons?
3. 3.💪 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?
4. 4.True or false: pushing a trolley is a push. (a) True (b) False
5. 5.💪 A force is a … (a) unit of time (b) kind of colour (c) type of sound (d) push or a pull
6. 6.True or false: hitting a cricket ball is a pull. (a) True (b) False
7. 7.Which of these is caused by friction? (a) rubbing hands warms them (b) a river flows downhill (c) a thrown ball comes down (d) a magnet picks up pins
8. 8.💪 Which force is at work: an apple falls down? (a) muscular force (b) gravity (c) magnetic force (d) friction
9. 9.Which of these is caused by magnetic force? (a) rain falls to the ground (b) a thrown ball comes down (c) a compass needle turns (d) brakes stop a bicycle
10. 10.💪 A bag has a mass of 55 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
11. 11.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
12. 12.Which of these is caused by muscular force? (a) rubbing hands warms them (b) an apple falls down (c) a river flows downhill (d) squeezing a lemon
13. 13.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
14. 14.Which of these is caused by gravity? (a) shoes grip the floor (b) rubbing hands warms them (c) a rolling ball slows (d) a thrown ball comes down
15. 15.💪 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?
16. 16.True or false: pushing a trolley is a pull. (a) True (b) False
17. 17.Which of these is caused by gravity? (a) pedalling a cycle (b) a river flows downhill (c) lifting a school bag (d) brakes stop a bicycle
18. 18.💪 Which force pulls everything towards the Earth? (a) magnetism (b) friction (c) gravity (d) wind
19. 19.💪 In a tug of war, one team pulls left with 30 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
20. 20.Which of these is caused by magnetic force? (a) a thrown ball comes down (b) a rolling ball slows (c) pedalling a cycle (d) a magnet picks up pins
21. 21.💪 Which force is at work: shoes grip the floor? (a) gravity (b) friction (c) muscular force (d) magnetic force
22. 22.True or false: closing a drawer is a pull. (a) True (b) False
23. 23.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) balanced (c) unbalanced (d) doubled
24. 24.💪 A cart is pulled to the right with 25 N and to the left with 25 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
25. 25.💪 A box weighs 540 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
26. 26.True or false: kicking a football is a pull. (a) True (b) False
27. 27.💪 Which force is at work: squeezing a lemon? (a) muscular force (b) magnetic force (c) friction (d) gravity
28. 28.💪 Two children push a box to the right, one with 25 N and the other with 80 N. What is the net (total) force on the box, in newtons?
29. 29.💪 Which force is at work: a compass needle turns? (a) gravity (b) friction (c) magnetic force (d) muscular force
30. 30.Which of these is caused by gravity? (a) a magnet picks up pins (b) lifting a school bag (c) an apple falls down (d) a fridge magnet sticks
31. 31.💪 Two children push a box to the right, one with 60 N and the other with 75 N. What is the net (total) force on the box, in newtons?
32. 32.Which of these is caused by magnetic force? (a) squeezing a lemon (b) a fridge magnet sticks (c) brakes stop a bicycle (d) pedalling a cycle
33. 33.💪 A box weighs 530 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
34. 34.💪 A box weighs 140 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
35. 35.💪 A cart is pulled to the right with 95 N and to the left with 105 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
36. 36.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) magnetic force (c) friction (d) gravity
37. 37.💪 Which force is at work: pedalling a cycle? (a) magnetic force (b) muscular force (c) friction (d) gravity
38. 38.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
39. 39.💪 A bag has a mass of 32 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
40. 40.💪 Two children push a box to the right, one with 25 N and the other with 10 N. What is the net (total) force on the box, in newtons?

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