Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 400 · 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: shoes grip the floor? (a) gravity (b) muscular force (c) friction (d) magnetic force
2. 2.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) doubled (c) gravity (d) balanced
3. 3.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
4. 4.💪 Which force is at work: brakes stop a bicycle? (a) friction (b) muscular force (c) magnetic force (d) gravity
5. 5.True or false: opening a drawer is a pull. (a) True (b) False
6. 6.💪 A cart is pulled to the right with 35 N and to the left with 30 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
7. 7.True or false: pulling a cart is a pull. (a) True (b) False
8. 8.Which of these is caused by friction? (a) brakes stop a bicycle (b) a thrown ball comes down (c) a compass needle turns (d) rain falls to the ground
9. 9.Which of these is caused by gravity? (a) brakes stop a bicycle (b) lifting a school bag (c) a river flows downhill (d) a magnet picks up pins
10. 10.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
11. 11.Which of these is caused by magnetic force? (a) pedalling a cycle (b) rain falls to the ground (c) a magnet picks up pins (d) rubbing hands warms them
12. 12.💪 Which force is at work: a rolling ball slows? (a) gravity (b) muscular force (c) magnetic force (d) friction
13. 13.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
14. 14.Which of these is caused by muscular force? (a) an apple falls down (b) rain falls to the ground (c) lifting a school bag (d) a compass needle turns
15. 15.💪 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 right (c) to the left
16. 16.💪 In a tug of war, one team pulls right with 75 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
17. 17.💪 In a tug of war, one team pulls left with 30 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
18. 18.Which of these is caused by magnetic force? (a) a fridge magnet sticks (b) squeezing a lemon (c) a thrown ball comes down (d) rain falls to the ground
19. 19.True or false: pushing a trolley is a push. (a) False (b) True
20. 20.True or false: kicking a football is a push. (a) True (b) False
21. 21.💪 Which can a force NOT do? (a) change its shape (b) change its colour (c) start it moving (d) stop it moving
22. 22.💪 Two children push a box to the right, one with 35 N and the other with 30 N. What is the net (total) force on the box, in newtons?
23. 23.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
24. 24.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
25. 25.True or false: closing a drawer is a pull. (a) False (b) True
26. 26.💪 A force is a … (a) push or a pull (b) kind of colour (c) type of sound (d) unit of time
27. 27.True or false: hitting a cricket ball is a pull. (a) False (b) True
28. 28.Which of these is caused by gravity? (a) squeezing a lemon (b) lifting a school bag (c) brakes stop a bicycle (d) rain falls to the ground
29. 29.💪 A bag has a mass of 30 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
30. 30.Which of these is caused by friction? (a) an apple falls down (b) a magnet picks up pins (c) shoes grip the floor (d) a fridge magnet sticks
31. 31.💪 Two children push a box to the right, one with 65 N and the other with 40 N. What is the net (total) force on the box, in newtons?
32. 32.💪 Two children push a box to the right, one with 80 N and the other with 65 N. What is the net (total) force on the box, in newtons?
33. 33.True or false: pulling a cart is a push. (a) False (b) True
34. 34.💪 A bag has a mass of 38 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
35. 35.Which of these is caused by friction? (a) rain falls to the ground (b) pedalling a cycle (c) a river flows downhill (d) a rolling ball slows
36. 36.💪 A box weighs 490 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
37. 37.💪 A cart is pulled to the right with 35 N and to the left with 35 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
38. 38.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
39. 39.💪 In a tug of war, one team pulls left with 90 N and the other pulls right with 50 N. What is the size of the net force, in newtons?
40. 40.True or false: a tug of war is a push. (a) True (b) False

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