Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 615 · 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 250 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
2. 2.💪 In a tug of war, one team pulls right with 95 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
3. 3.Which of these is caused by friction? (a) a fridge magnet sticks (b) a rolling ball slows (c) a magnet picks up pins (d) pedalling a cycle
4. 4.💪 In a tug of war, one team pulls left with 65 N and the other pulls right with 45 N. What is the size of the net force, in newtons?
5. 5.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
6. 6.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) friction (c) magnetic force (d) gravity
7. 7.True or false: closing a drawer is a pull. (a) True (b) False
8. 8.Which of these is caused by gravity? (a) pedalling a cycle (b) rubbing hands warms them (c) a thrown ball comes down (d) lifting a school bag
9. 9.Which of these is caused by gravity? (a) shoes grip the floor (b) rain falls to the ground (c) a fridge magnet sticks (d) brakes stop a bicycle
10. 10.True or false: hitting a cricket ball is a pull. (a) False (b) True
11. 11.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) gravity (c) doubled (d) unbalanced
12. 12.💪 In which unit do we measure force? (a) metre (m) (b) second (s) (c) litre (L) (d) newton (N)
13. 13.💪 A box weighs 340 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
14. 14.💪 Two children push a box to the right, one with 100 N and the other with 65 N. What is the net (total) force on the box, in newtons?
15. 15.True or false: hitting a cricket ball is a push. (a) True (b) False
16. 16.💪 A box weighs 380 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
17. 17.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
18. 18.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
19. 19.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
20. 20.💪 Two children push a box to the right, one with 90 N and the other with 75 N. What is the net (total) force on the box, in newtons?
21. 21.💪 A force is a … (a) push or a pull (b) unit of time (c) type of sound (d) kind of colour
22. 22.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
23. 23.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
24. 24.💪 A box weighs 150 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
25. 25.Which of these is caused by gravity? (a) squeezing a lemon (b) shoes grip the floor (c) a rolling ball slows (d) an apple falls down
26. 26.💪 Which force pulls everything towards the Earth? (a) friction (b) magnetism (c) gravity (d) wind
27. 27.True or false: opening a drawer is a pull. (a) False (b) True
28. 28.💪 A bag has a mass of 29 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
29. 29.💪 A bag has a mass of 6 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
30. 30.💪 A box weighs 70 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
31. 31.💪 Which force is at work: lifting a school bag? (a) gravity (b) friction (c) magnetic force (d) muscular force
32. 32.True or false: pulling a cart is a pull. (a) False (b) True
33. 33.💪 Which can a force NOT do? (a) start it moving (b) change its shape (c) stop it moving (d) change its colour
34. 34.💪 A bag has a mass of 50 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
35. 35.True or false: pressing a doorbell is a pull. (a) True (b) False
36. 36.💪 Which force is at work: an apple falls down? (a) friction (b) magnetic force (c) muscular force (d) gravity
37. 37.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 30 N. What is the size of the net force, in newtons?
38. 38.💪 Two children push a box to the right, one with 90 N and the other with 5 N. What is the net (total) force on the box, in newtons?
39. 39.True or false: pressing a doorbell is a push. (a) False (b) True
40. 40.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) muscular force (c) gravity (d) friction

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