Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 308 · 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.💪 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?
2. 2.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) balanced (c) unbalanced (d) doubled
3. 3.💪 Which force is at work: a river flows downhill? (a) gravity (b) magnetic force (c) muscular force (d) friction
4. 4.True or false: closing a drawer is a push. (a) True (b) False
5. 5.💪 A bag has a mass of 54 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
6. 6.💪 A bag has a mass of 59 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
7. 7.Which of these is caused by muscular force? (a) a rolling ball slows (b) an apple falls down (c) squeezing a lemon (d) a thrown ball comes down
8. 8.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) friction (c) gravity (d) magnetic force
9. 9.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
10. 10.💪 Two children push a box to the right, one with 25 N and the other with 95 N. What is the net (total) force on the box, in newtons?
11. 11.True or false: pulling a cart is a push. (a) False (b) True
12. 12.True or false: opening a drawer is a push. (a) True (b) False
13. 13.💪 A box weighs 340 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
14. 14.True or false: plucking a mango is a push. (a) False (b) True
15. 15.💪 In a tug of war, one team pulls right with 50 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
16. 16.💪 Two children push a box to the right, one with 15 N and the other with 20 N. What is the net (total) force on the box, in newtons?
17. 17.💪 Which force is at work: rubbing hands warms them? (a) friction (b) muscular force (c) magnetic force (d) gravity
18. 18.💪 Two children push a box to the right, one with 45 N and the other with 15 N. What is the net (total) force on the box, in newtons?
19. 19.Which of these is caused by gravity? (a) lifting a school bag (b) brakes stop a bicycle (c) a thrown ball comes down (d) a rolling ball slows
20. 20.True or false: pushing a trolley is a push. (a) False (b) True
21. 21.True or false: kicking a football is a pull. (a) False (b) True
22. 22.💪 Which force pulls everything towards the Earth? (a) wind (b) magnetism (c) gravity (d) friction
23. 23.Which of these is caused by magnetic force? (a) pedalling a cycle (b) a compass needle turns (c) brakes stop a bicycle (d) lifting a school bag
24. 24.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
25. 25.💪 Which force is at work: a fridge magnet sticks? (a) magnetic force (b) gravity (c) friction (d) muscular force
26. 26.💪 Which can a force NOT do? (a) change its colour (b) start it moving (c) change its shape (d) stop it moving
27. 27.Which of these is caused by muscular force? (a) a magnet picks up pins (b) brakes stop a bicycle (c) lifting a school bag (d) rain falls to the ground
28. 28.💪 Which force is at work: a rolling ball slows? (a) magnetic force (b) gravity (c) friction (d) muscular force
29. 29.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
30. 30.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
31. 31.Which of these is caused by friction? (a) rain falls to the ground (b) a compass needle turns (c) rubbing hands warms them (d) a fridge magnet sticks
32. 32.💪 A box weighs 530 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
33. 33.💪 Which force is at work: brakes stop a bicycle? (a) gravity (b) muscular force (c) friction (d) magnetic force
34. 34.💪 A box weighs 480 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
35. 35.💪 A box weighs 170 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
36. 36.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
37. 37.💪 Which force is at work: squeezing a lemon? (a) magnetic force (b) gravity (c) friction (d) muscular force
38. 38.💪 Two children push a box to the right, one with 50 N and the other with 80 N. What is the net (total) force on the box, in newtons?
39. 39.Which of these is caused by friction? (a) pedalling a cycle (b) a fridge magnet sticks (c) brakes stop a bicycle (d) a compass needle turns
40. 40.💪 Is a tug of war a push or a pull? (a) a pull (b) a push

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