Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 103 · 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.💪 Two children push a box to the right, one with 100 N and the other with 35 N. What is the net (total) force on the box, in newtons?
2. 2.Which of these is caused by friction? (a) an apple falls down (b) pedalling a cycle (c) rubbing hands warms them (d) a thrown ball comes down
3. 3.💪 A box weighs 80 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
4. 4.True or false: plucking a mango is a pull. (a) False (b) True
5. 5.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
6. 6.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
7. 7.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
8. 8.💪 Which force is at work: a rolling ball slows? (a) friction (b) magnetic force (c) gravity (d) muscular force
9. 9.Which of these is caused by friction? (a) rain falls to the ground (b) an apple falls down (c) squeezing a lemon (d) brakes stop a bicycle
10. 10.💪 In a tug of war, one team pulls right with 15 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
11. 11.💪 Which force is at work: a compass needle turns? (a) friction (b) gravity (c) magnetic force (d) muscular force
12. 12.Which of these is caused by gravity? (a) brakes stop a bicycle (b) a river flows downhill (c) pedalling a cycle (d) a magnet picks up pins
13. 13.True or false: kicking a football is a push. (a) True (b) False
14. 14.💪 In which unit do we measure force? (a) second (s) (b) metre (m) (c) newton (N) (d) litre (L)
15. 15.💪 Which force is at work: lifting a school bag? (a) friction (b) magnetic force (c) gravity (d) muscular force
16. 16.💪 Which force is at work: a magnet picks up pins? (a) muscular force (b) magnetic force (c) gravity (d) friction
17. 17.True or false: opening a drawer is a push. (a) True (b) False
18. 18.💪 In a tug of war, one team pulls right with 90 N and the other pulls left with 70 N. What is the size of the net force, in newtons?
19. 19.💪 A bag has a mass of 24 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
20. 20.💪 In a tug of war, one team pulls left with 65 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
21. 21.Which of these is caused by gravity? (a) an apple falls down (b) lifting a school bag (c) shoes grip the floor (d) a rolling ball slows
22. 22.Which of these is caused by gravity? (a) rain falls to the ground (b) rubbing hands warms them (c) brakes stop a bicycle (d) a rolling ball slows
23. 23.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) unbalanced (c) balanced (d) gravity
24. 24.💪 Two children push a box to the right, one with 85 N and the other with 75 N. What is the net (total) force on the box, in newtons?
25. 25.💪 In a tug of war, one team pulls left with 40 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
26. 26.True or false: pushing a trolley is a push. (a) False (b) True
27. 27.💪 Which force is at work: an apple falls down? (a) muscular force (b) gravity (c) friction (d) magnetic force
28. 28.True or false: pulling a cart is a pull. (a) True (b) False
29. 29.💪 Two children push a box to the right, one with 80 N and the other with 80 N. What is the net (total) force on the box, in newtons?
30. 30.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
31. 31.💪 A force is a … (a) type of sound (b) kind of colour (c) unit of time (d) push or a pull
32. 32.💪 Which can a force NOT do? (a) start it moving (b) change its shape (c) change its colour (d) stop it moving
33. 33.Which of these is caused by muscular force? (a) rubbing hands warms them (b) a fridge magnet sticks (c) an apple falls down (d) lifting a school bag
34. 34.Which of these is caused by gravity? (a) a magnet picks up pins (b) brakes stop a bicycle (c) a compass needle turns (d) a thrown ball comes down
35. 35.💪 In a tug of war, one team pulls right with 10 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
36. 36.True or false: pressing a doorbell is a push. (a) False (b) True
37. 37.True or false: hitting a cricket ball is a pull. (a) True (b) False
38. 38.Which of these is caused by magnetic force? (a) a compass needle turns (b) an apple falls down (c) squeezing a lemon (d) a river flows downhill
39. 39.Which of these is caused by muscular force? (a) a rolling ball slows (b) pedalling a cycle (c) shoes grip the floor (d) rubbing hands warms them
40. 40.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) gravity (c) magnetic force (d) friction

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