Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 575 · 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.💪 A bag has a mass of 40 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
2. 2.True or false: hitting a cricket ball is a push. (a) True (b) False
3. 3.💪 Which can a force NOT do? (a) stop it moving (b) change its shape (c) change its colour (d) start it moving
4. 4.True or false: a tug of war is a push. (a) False (b) True
5. 5.Which of these is caused by friction? (a) rubbing hands warms them (b) a fridge magnet sticks (c) squeezing a lemon (d) a river flows downhill
6. 6.True or false: pulling up your socks is a push. (a) True (b) False
7. 7.Which of these is caused by gravity? (a) a compass needle turns (b) rain falls to the ground (c) a fridge magnet sticks (d) shoes grip the floor
8. 8.💪 Which force is at work: rain falls to the ground? (a) gravity (b) magnetic force (c) muscular force (d) friction
9. 9.True or false: kicking a football is a pull. (a) False (b) True
10. 10.True or false: pressing a doorbell is a push. (a) False (b) True
11. 11.True or false: drawing up a well bucket is a pull. (a) False (b) True
12. 12.True or false: pressing a doorbell is a pull. (a) True (b) False
13. 13.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
14. 14.💪 In a tug of war, one team pulls right with 30 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
15. 15.True or false: closing a drawer is a pull. (a) True (b) False
16. 16.💪 Which force pulls everything towards the Earth? (a) gravity (b) friction (c) wind (d) magnetism
17. 17.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) friction (c) muscular force (d) magnetic force
18. 18.Which of these is caused by muscular force? (a) a river flows downhill (b) brakes stop a bicycle (c) pedalling a cycle (d) a rolling ball slows
19. 19.💪 In a tug of war, one team pulls right with 80 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
20. 20.💪 A bag has a mass of 22 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
21. 21.💪 Two children push a box to the right, one with 50 N and the other with 35 N. What is the net (total) force on the box, in newtons?
22. 22.💪 A box weighs 50 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
23. 23.💪 A cart is pulled to the right with 85 N and to the left with 75 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
24. 24.💪 Which force is at work: pedalling a cycle? (a) gravity (b) magnetic force (c) friction (d) muscular force
25. 25.True or false: closing a drawer is a push. (a) False (b) True
26. 26.Which of these is caused by gravity? (a) pedalling a cycle (b) a fridge magnet sticks (c) a rolling ball slows (d) an apple falls down
27. 27.True or false: pulling up your socks is a pull. (a) False (b) True
28. 28.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
29. 29.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
30. 30.Which of these is caused by muscular force? (a) rubbing hands warms them (b) brakes stop a bicycle (c) a magnet picks up pins (d) lifting a school bag
31. 31.Which of these is caused by friction? (a) a rolling ball slows (b) rain falls to the ground (c) lifting a school bag (d) a compass needle turns
32. 32.💪 Two children push a box to the right, one with 55 N and the other with 45 N. What is the net (total) force on the box, in newtons?
33. 33.Which of these is caused by gravity? (a) rubbing hands warms them (b) squeezing a lemon (c) a compass needle turns (d) a thrown ball comes down
34. 34.💪 Two children push a box to the right, one with 20 N and the other with 65 N. What is the net (total) force on the box, in newtons?
35. 35.Which of these is caused by magnetic force? (a) a thrown ball comes down (b) a magnet picks up pins (c) rain falls to the ground (d) lifting a school bag
36. 36.True or false: pulling a cart is a push. (a) False (b) True
37. 37.💪 In a tug of war, one team pulls left with 55 N and the other pulls right with 35 N. What is the size of the net force, in newtons?
38. 38.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) unbalanced (c) doubled (d) balanced
39. 39.💪 A box weighs 330 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
40. 40.True or false: plucking a mango is a pull. (a) True (b) False

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