Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 124 · 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 box weighs 340 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
2. 2.💪 Two children push a box to the right, one with 85 N and the other with 5 N. What is the net (total) force on the box, in newtons?
3. 3.True or false: pulling up your socks is a push. (a) False (b) True
4. 4.Which of these is caused by friction? (a) an apple falls down (b) squeezing a lemon (c) a fridge magnet sticks (d) a rolling ball slows
5. 5.True or false: pressing a doorbell is a push. (a) True (b) False
6. 6.Which of these is caused by friction? (a) shoes grip the floor (b) squeezing a lemon (c) an apple falls down (d) a thrown ball comes down
7. 7.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
8. 8.💪 In a tug of war, one team pulls left with 85 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
9. 9.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
10. 10.💪 A box weighs 290 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
11. 11.True or false: pulling up your socks is a pull. (a) False (b) True
12. 12.Which of these is caused by friction? (a) lifting a school bag (b) squeezing a lemon (c) brakes stop a bicycle (d) an apple falls down
13. 13.💪 Two children push a box to the right, one with 100 N and the other with 50 N. What is the net (total) force on the box, in newtons?
14. 14.💪 Which force is at work: rain falls to the ground? (a) friction (b) magnetic force (c) muscular force (d) gravity
15. 15.True or false: drawing up a well bucket is a pull. (a) False (b) True
16. 16.💪 Which can a force NOT do? (a) change its shape (b) change its colour (c) start it moving (d) stop it moving
17. 17.True or false: closing a drawer is a push. (a) False (b) True
18. 18.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) balanced (c) gravity (d) doubled
19. 19.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
20. 20.True or false: closing a drawer is a pull. (a) False (b) True
21. 21.💪 Which force is at work: a river flows downhill? (a) muscular force (b) gravity (c) friction (d) magnetic force
22. 22.💪 Two children push a box to the right, one with 10 N and the other with 10 N. What is the net (total) force on the box, in newtons?
23. 23.💪 A bag has a mass of 33 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
24. 24.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) muscular force (c) friction (d) gravity
25. 25.Which of these is caused by magnetic force? (a) pedalling a cycle (b) a fridge magnet sticks (c) squeezing a lemon (d) rubbing hands warms them
26. 26.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
27. 27.Which of these is caused by gravity? (a) a thrown ball comes down (b) rubbing hands warms them (c) pedalling a cycle (d) squeezing a lemon
28. 28.💪 A box weighs 330 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
29. 29.💪 A box weighs 220 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
30. 30.💪 In a tug of war, one team pulls left with 25 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
31. 31.Which of these is caused by magnetic force? (a) pedalling a cycle (b) a rolling ball slows (c) shoes grip the floor (d) a magnet picks up pins
32. 32.Which of these is caused by gravity? (a) a fridge magnet sticks (b) shoes grip the floor (c) a rolling ball slows (d) an apple falls down
33. 33.💪 Which force is at work: a rolling ball slows? (a) friction (b) magnetic force (c) gravity (d) muscular force
34. 34.💪 Two children push a box to the right, one with 25 N and the other with 35 N. What is the net (total) force on the box, in newtons?
35. 35.💪 Which force is at work: a compass needle turns? (a) gravity (b) magnetic force (c) muscular force (d) friction
36. 36.Which of these is caused by muscular force? (a) a magnet picks up pins (b) lifting a school bag (c) a fridge magnet sticks (d) a compass needle turns
37. 37.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
38. 38.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
39. 39.Which of these is caused by muscular force? (a) a thrown ball comes down (b) a rolling ball slows (c) shoes grip the floor (d) squeezing a lemon
40. 40.💪 A box weighs 140 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?

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