Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 288 · 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 friction? (a) rubbing hands warms them (b) a compass needle turns (c) pedalling a cycle (d) lifting a school bag
2. 2.True or false: plucking a mango is a push. (a) False (b) True
3. 3.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
4. 4.True or false: a tug of war is a pull. (a) True (b) False
5. 5.💪 A cart is pulled to the right with 35 N and to the left with 25 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
6. 6.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) rubbing hands warms them (c) an apple falls down (d) a magnet picks up pins
7. 7.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
8. 8.💪 Which force is at work: shoes grip the floor? (a) gravity (b) muscular force (c) magnetic force (d) friction
9. 9.💪 Which can a force NOT do? (a) change its shape (b) stop it moving (c) change its colour (d) start it moving
10. 10.💪 A bag has a mass of 49 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
11. 11.💪 In which unit do we measure force? (a) metre (m) (b) litre (L) (c) second (s) (d) newton (N)
12. 12.💪 Two children push a box to the right, one with 15 N and the other with 80 N. What is the net (total) force on the box, in newtons?
13. 13.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
14. 14.💪 Which force is at work: rubbing hands warms them? (a) magnetic force (b) friction (c) gravity (d) muscular force
15. 15.💪 A cart is pulled to the right with 85 N and to the left with 90 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
16. 16.💪 Two children push a box to the right, one with 30 N and the other with 5 N. What is the net (total) force on the box, in newtons?
17. 17.💪 Which force is at work: a compass needle turns? (a) muscular force (b) friction (c) magnetic force (d) gravity
18. 18.True or false: kicking a football is a pull. (a) False (b) True
19. 19.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
20. 20.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) gravity (c) unbalanced (d) balanced
21. 21.True or false: pushing a swing is a pull. (a) False (b) True
22. 22.💪 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?
23. 23.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
24. 24.💪 Which force is at work: squeezing a lemon? (a) gravity (b) friction (c) muscular force (d) magnetic force
25. 25.💪 A bag has a mass of 36 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
26. 26.💪 Which force is at work: lifting a school bag? (a) muscular force (b) gravity (c) friction (d) magnetic force
27. 27.Which of these is caused by gravity? (a) a compass needle turns (b) rain falls to the ground (c) lifting a school bag (d) pedalling a cycle
28. 28.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) muscular force (c) magnetic force (d) friction
29. 29.True or false: pushing a trolley is a pull. (a) True (b) False
30. 30.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
31. 31.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
32. 32.True or false: drawing up a well bucket is a push. (a) False (b) True
33. 33.💪 A box weighs 80 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
34. 34.Which of these is caused by muscular force? (a) a compass needle turns (b) a fridge magnet sticks (c) a magnet picks up pins (d) pedalling a cycle
35. 35.Which of these is caused by friction? (a) brakes stop a bicycle (b) a river flows downhill (c) squeezing a lemon (d) rain falls to the ground
36. 36.Which of these is caused by muscular force? (a) a rolling ball slows (b) squeezing a lemon (c) a river flows downhill (d) brakes stop a bicycle
37. 37.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) muscular force (c) magnetic force (d) gravity
38. 38.True or false: pushing a trolley is a push. (a) True (b) False
39. 39.💪 Which force is at work: a magnet picks up pins? (a) muscular force (b) friction (c) magnetic force (d) gravity
40. 40.💪 Which force is at work: an apple falls down? (a) magnetic force (b) friction (c) muscular force (d) gravity

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