Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 306 · 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 muscular force? (a) an apple falls down (b) a rolling ball slows (c) rubbing hands warms them (d) lifting a school bag
2. 2.💪 In which unit do we measure force? (a) second (s) (b) metre (m) (c) newton (N) (d) litre (L)
3. 3.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
4. 4.💪 A force is a … (a) type of sound (b) kind of colour (c) unit of time (d) push or a pull
5. 5.True or false: closing a drawer is a push. (a) True (b) False
6. 6.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) doubled (c) unbalanced (d) balanced
7. 7.💪 Which force is at work: an apple falls down? (a) gravity (b) friction (c) magnetic force (d) muscular force
8. 8.💪 Two children push a box to the right, one with 65 N and the other with 95 N. What is the net (total) force on the box, in newtons?
9. 9.Which of these is caused by gravity? (a) an apple falls down (b) shoes grip the floor (c) rubbing hands warms them (d) a fridge magnet sticks
10. 10.💪 In a tug of war, one team pulls right with 55 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
11. 11.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) gravity (c) magnetic force (d) friction
12. 12.True or false: a tug of war is a pull. (a) False (b) True
13. 13.Which of these is caused by friction? (a) a compass needle turns (b) a rolling ball slows (c) rain falls to the ground (d) a fridge magnet sticks
14. 14.💪 Which can a force NOT do? (a) change its shape (b) stop it moving (c) change its colour (d) start it moving
15. 15.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
16. 16.True or false: plucking a mango is a push. (a) False (b) True
17. 17.💪 A bag has a mass of 14 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
18. 18.💪 A cart is pulled to the right with 50 N and to the left with 50 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
19. 19.💪 Which force is at work: shoes grip the floor? (a) friction (b) gravity (c) magnetic force (d) muscular force
20. 20.💪 A cart is pulled to the right with 20 N and to the left with 35 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
21. 21.💪 In a tug of war, one team pulls left with 70 N and the other pulls right with 65 N. What is the size of the net force, in newtons?
22. 22.💪 Two children push a box to the right, one with 90 N and the other with 80 N. What is the net (total) force on the box, in newtons?
23. 23.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
24. 24.True or false: hitting a cricket ball is a pull. (a) True (b) False
25. 25.💪 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
26. 26.Which of these is caused by friction? (a) an apple falls down (b) shoes grip the floor (c) a fridge magnet sticks (d) squeezing a lemon
27. 27.Which of these is caused by magnetic force? (a) a river flows downhill (b) squeezing a lemon (c) a fridge magnet sticks (d) an apple falls down
28. 28.True or false: pushing a swing is a push. (a) True (b) False
29. 29.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
30. 30.💪 A bag has a mass of 36 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
31. 31.💪 Which force is at work: brakes stop a bicycle? (a) gravity (b) muscular force (c) magnetic force (d) friction
32. 32.💪 A bag has a mass of 44 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
33. 33.💪 Which force is at work: rain falls to the ground? (a) friction (b) gravity (c) magnetic force (d) muscular force
34. 34.💪 Two children push a box to the right, one with 40 N and the other with 20 N. What is the net (total) force on the box, in newtons?
35. 35.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
36. 36.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
37. 37.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
38. 38.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
39. 39.True or false: pushing a trolley is a pull. (a) False (b) True
40. 40.💪 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?

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