Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 283 · 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: brakes stop a bicycle? (a) gravity (b) friction (c) muscular force (d) magnetic force
2. 2.Which of these is caused by muscular force? (a) a thrown ball comes down (b) pedalling a cycle (c) a compass needle turns (d) a magnet picks up pins
3. 3.💪 A box weighs 120 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
4. 4.💪 Which force is at work: squeezing a lemon? (a) magnetic force (b) friction (c) gravity (d) muscular force
5. 5.Which of these is caused by magnetic force? (a) lifting a school bag (b) a fridge magnet sticks (c) rain falls to the ground (d) an apple falls down
6. 6.💪 Which force is at work: rubbing hands warms them? (a) magnetic force (b) friction (c) muscular force (d) gravity
7. 7.💪 Which force is at work: pedalling a cycle? (a) friction (b) gravity (c) magnetic force (d) muscular force
8. 8.💪 Two children push a box to the right, one with 60 N and the other with 15 N. What is the net (total) force on the box, in newtons?
9. 9.💪 Which force is at work: a compass needle turns? (a) gravity (b) friction (c) magnetic force (d) muscular force
10. 10.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) gravity (c) magnetic force (d) friction
11. 11.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
12. 12.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
13. 13.💪 Which force is at work: lifting a school bag? (a) friction (b) muscular force (c) magnetic force (d) gravity
14. 14.True or false: pulling up your socks is a push. (a) False (b) True
15. 15.Which of these is caused by magnetic force? (a) rain falls to the ground (b) a rolling ball slows (c) a magnet picks up pins (d) shoes grip the floor
16. 16.💪 Which force is at work: an apple falls down? (a) muscular force (b) magnetic force (c) gravity (d) friction
17. 17.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
18. 18.💪 A cart is pulled to the right with 45 N and to the left with 40 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
19. 19.Which of these is caused by friction? (a) a river flows downhill (b) pedalling a cycle (c) a rolling ball slows (d) rain falls to the ground
20. 20.💪 In a tug of war, one team pulls right with 20 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
21. 21.💪 A bag has a mass of 43 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
22. 22.True or false: closing a drawer is a pull. (a) False (b) True
23. 23.💪 Two children push a box to the right, one with 5 N and the other with 85 N. What is the net (total) force on the box, in newtons?
24. 24.Which of these is caused by muscular force? (a) squeezing a lemon (b) a river flows downhill (c) rain falls to the ground (d) a rolling ball slows
25. 25.Which of these is caused by gravity? (a) a compass needle turns (b) rain falls to the ground (c) brakes stop a bicycle (d) pedalling a cycle
26. 26.💪 A bag has a mass of 3 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
27. 27.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
28. 28.True or false: pushing a trolley is a push. (a) False (b) True
29. 29.True or false: kicking a football is a push. (a) False (b) True
30. 30.True or false: opening a drawer is a push. (a) True (b) False
31. 31.💪 A cart is pulled to the right with 25 N and to the left with 15 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
32. 32.True or false: pushing a swing is a pull. (a) True (b) False
33. 33.True or false: plucking a mango is a push. (a) False (b) True
34. 34.💪 Two children push a box to the right, one with 40 N and the other with 5 N. What is the net (total) force on the box, in newtons?
35. 35.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) balanced (c) unbalanced (d) gravity
36. 36.💪 A bag has a mass of 47 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
37. 37.True or false: pushing a trolley is a pull. (a) False (b) True
38. 38.💪 Which force pulls everything towards the Earth? (a) wind (b) friction (c) magnetism (d) gravity
39. 39.💪 Two children push a box to the right, one with 25 N and the other with 100 N. What is the net (total) force on the box, in newtons?
40. 40.💪 Which can a force NOT do? (a) change its shape (b) stop it moving (c) start it moving (d) change its colour

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