Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 617 · 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 force is at work: a rolling ball slows? (a) friction (b) muscular force (c) magnetic force (d) gravity
2. 2.💪 Which force is at work: an apple falls down? (a) friction (b) magnetic force (c) muscular force (d) gravity
3. 3.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
4. 4.💪 A cart is pulled to the right with 20 N and to the left with 20 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
5. 5.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
6. 6.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
7. 7.💪 Which force is at work: squeezing a lemon? (a) muscular force (b) magnetic force (c) friction (d) gravity
8. 8.💪 A force is a … (a) type of sound (b) kind of colour (c) unit of time (d) push or a pull
9. 9.True or false: opening a drawer is a push. (a) True (b) False
10. 10.💪 In a tug of war, one team pulls right with 15 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
11. 11.True or false: pressing a doorbell is a push. (a) True (b) False
12. 12.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) friction (c) gravity (d) magnetic force
13. 13.Which of these is caused by friction? (a) a thrown ball comes down (b) an apple falls down (c) a river flows downhill (d) shoes grip the floor
14. 14.💪 A cart is pulled to the right with 20 N and to the left with 15 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
15. 15.💪 Two children push a box to the right, one with 20 N and the other with 90 N. What is the net (total) force on the box, in newtons?
16. 16.True or false: a tug of war is a pull. (a) True (b) False
17. 17.💪 Two children push a box to the right, one with 15 N and the other with 25 N. What is the net (total) force on the box, in newtons?
18. 18.💪 In a tug of war, one team pulls left with 45 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
19. 19.True or false: closing a drawer is a push. (a) False (b) True
20. 20.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
21. 21.💪 Which can a force NOT do? (a) start it moving (b) stop it moving (c) change its shape (d) change its colour
22. 22.💪 Two children push a box to the right, one with 100 N and the other with 60 N. What is the net (total) force on the box, in newtons?
23. 23.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) balanced (c) gravity (d) unbalanced
24. 24.💪 A cart is pulled to the right with 35 N and to the left with 45 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
25. 25.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) gravity (c) friction (d) muscular force
26. 26.💪 Which force pulls everything towards the Earth? (a) friction (b) wind (c) gravity (d) magnetism
27. 27.True or false: kicking a football is a push. (a) True (b) False
28. 28.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
29. 29.💪 In a tug of war, one team pulls left with 100 N and the other pulls right with 75 N. What is the size of the net force, in newtons?
30. 30.💪 A cart is pulled to the right with 70 N and to the left with 80 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
31. 31.Which of these is caused by friction? (a) pedalling a cycle (b) squeezing a lemon (c) a rolling ball slows (d) a river flows downhill
32. 32.💪 A bag has a mass of 50 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
33. 33.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
34. 34.💪 Which force is at work: pedalling a cycle? (a) muscular force (b) friction (c) magnetic force (d) gravity
35. 35.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) magnetic force (c) gravity (d) friction
36. 36.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) a river flows downhill (c) lifting a school bag (d) shoes grip the floor
37. 37.True or false: pressing a doorbell is a pull. (a) True (b) False
38. 38.True or false: opening a drawer is a pull. (a) True (b) False
39. 39.Which of these is caused by gravity? (a) rubbing hands warms them (b) a rolling ball slows (c) a magnet picks up pins (d) a thrown ball comes down
40. 40.True or false: pulling a cart is a push. (a) True (b) False

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