Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 101 · 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: closing a drawer is a push. (a) False (b) True
2. 2.💪 A cart is pulled to the right with 50 N and to the left with 35 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
3. 3.💪 In a tug of war, one team pulls left with 15 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
4. 4.True or false: hitting a cricket ball is a push. (a) False (b) True
5. 5.Which of these is caused by gravity? (a) a magnet picks up pins (b) lifting a school bag (c) brakes stop a bicycle (d) a thrown ball comes down
6. 6.True or false: plucking a mango is a pull. (a) True (b) False
7. 7.💪 Which force is at work: lifting a school bag? (a) gravity (b) muscular force (c) friction (d) magnetic force
8. 8.True or false: pressing a doorbell is a pull. (a) False (b) True
9. 9.💪 Which force is at work: pedalling a cycle? (a) muscular force (b) friction (c) gravity (d) magnetic force
10. 10.Which of these is caused by friction? (a) a fridge magnet sticks (b) squeezing a lemon (c) rubbing hands warms them (d) a river flows downhill
11. 11.💪 Which force is at work: squeezing a lemon? (a) magnetic force (b) muscular force (c) friction (d) gravity
12. 12.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
13. 13.💪 A bag has a mass of 5 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
14. 14.💪 A box weighs 110 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 right with 65 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
16. 16.💪 A box weighs 70 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
17. 17.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
18. 18.Which of these is caused by muscular force? (a) lifting a school bag (b) an apple falls down (c) a magnet picks up pins (d) a rolling ball slows
19. 19.True or false: plucking a mango is a push. (a) True (b) False
20. 20.True or false: pushing a trolley is a push. (a) True (b) False
21. 21.💪 A force is a … (a) kind of colour (b) type of sound (c) push or a pull (d) unit of time
22. 22.💪 Which force is at work: shoes grip the floor? (a) gravity (b) magnetic force (c) friction (d) muscular force
23. 23.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) friction (c) muscular force (d) gravity
24. 24.💪 A box weighs 360 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
25. 25.💪 Which force is at work: an apple falls down? (a) muscular force (b) gravity (c) magnetic force (d) friction
26. 26.💪 A bag has a mass of 26 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
27. 27.True or false: pulling up your socks is a pull. (a) True (b) False
28. 28.💪 Which force is at work: a river flows downhill? (a) friction (b) magnetic force (c) muscular force (d) gravity
29. 29.Which of these is caused by gravity? (a) shoes grip the floor (b) pedalling a cycle (c) a river flows downhill (d) rubbing hands warms them
30. 30.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) unbalanced (c) gravity (d) doubled
31. 31.💪 Two children push a box to the right, one with 100 N and the other with 80 N. What is the net (total) force on the box, in newtons?
32. 32.True or false: kicking a football is a pull. (a) False (b) True
33. 33.💪 A bag has a mass of 8 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
34. 34.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
35. 35.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
36. 36.💪 Which can a force NOT do? (a) change its shape (b) start it moving (c) change its colour (d) stop it moving
37. 37.💪 Which force is at work: a compass needle turns? (a) muscular force (b) magnetic force (c) friction (d) gravity
38. 38.Which of these is caused by magnetic force? (a) pedalling a cycle (b) a fridge magnet sticks (c) a rolling ball slows (d) an apple falls down
39. 39.💪 A box weighs 130 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
40. 40.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) squeezing a lemon (c) a magnet picks up pins (d) a rolling ball slows

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