Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 957 · 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.True or false: plucking a mango is a push. (a) False (b) True
2. 2.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) magnetic force (c) muscular force (d) friction
3. 3.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) lifting a school bag (c) a thrown ball comes down (d) shoes grip the floor
4. 4.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
5. 5.True or false: pulling a cart is a pull. (a) False (b) True
6. 6.💪 A bag has a mass of 30 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
7. 7.💪 Which force pulls everything towards the Earth? (a) friction (b) magnetism (c) wind (d) gravity
8. 8.💪 In a tug of war, one team pulls left with 30 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
9. 9.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
10. 10.True or false: a tug of war is a pull. (a) False (b) True
11. 11.True or false: pushing a swing is a pull. (a) False (b) True
12. 12.💪 Two children push a box to the right, one with 15 N and the other with 40 N. What is the net (total) force on the box, in newtons?
13. 13.Which of these is caused by gravity? (a) a river flows downhill (b) rubbing hands warms them (c) squeezing a lemon (d) lifting a school bag
14. 14.💪 A box weighs 270 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
15. 15.Which of these is caused by gravity? (a) a rolling ball slows (b) shoes grip the floor (c) brakes stop a bicycle (d) a thrown ball comes down
16. 16.💪 Which can a force NOT do? (a) change its shape (b) stop it moving (c) change its colour (d) start it moving
17. 17.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
18. 18.💪 A bag has a mass of 49 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
19. 19.💪 Which force is at work: rubbing hands warms them? (a) magnetic force (b) muscular force (c) gravity (d) friction
20. 20.💪 In a tug of war, one team pulls right with 55 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
21. 21.True or false: pressing a doorbell is a pull. (a) True (b) False
22. 22.Which of these is caused by gravity? (a) an apple falls down (b) a fridge magnet sticks (c) brakes stop a bicycle (d) rubbing hands warms them
23. 23.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
24. 24.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
25. 25.💪 A bag has a mass of 27 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
26. 26.💪 Two children push a box to the right, one with 20 N and the other with 40 N. What is the net (total) force on the box, in newtons?
27. 27.True or false: closing a drawer is a pull. (a) False (b) True
28. 28.💪 A box weighs 280 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
29. 29.💪 Which force is at work: squeezing a lemon? (a) friction (b) muscular force (c) magnetic force (d) gravity
30. 30.💪 In which unit do we measure force? (a) litre (L) (b) second (s) (c) newton (N) (d) metre (m)
31. 31.💪 Which force is at work: an apple falls down? (a) friction (b) muscular force (c) magnetic force (d) gravity
32. 32.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) doubled (c) balanced (d) gravity
33. 33.💪 Two children push a box to the right, one with 45 N and the other with 20 N. What is the net (total) force on the box, in newtons?
34. 34.💪 Two children push a box to the right, one with 50 N and the other with 20 N. What is the net (total) force on the box, in newtons?
35. 35.💪 A box weighs 250 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
36. 36.True or false: pressing a doorbell is a push. (a) True (b) False
37. 37.💪 A cart is pulled to the right with 60 N and to the left with 65 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
38. 38.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
39. 39.💪 Which force is at work: a rolling ball slows? (a) gravity (b) magnetic force (c) friction (d) muscular force
40. 40.💪 Which force is at work: a river flows downhill? (a) gravity (b) muscular force (c) friction (d) magnetic force

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