Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 838 · 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: a rolling ball slows? (a) muscular force (b) gravity (c) magnetic force (d) friction
2. 2.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) shoes grip the floor (c) a compass needle turns (d) squeezing a lemon
3. 3.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) doubled (c) unbalanced (d) balanced
4. 4.💪 A box weighs 150 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
5. 5.💪 Two children push a box to the right, one with 60 N and the other with 50 N. What is the net (total) force on the box, in newtons?
6. 6.💪 In which unit do we measure force? (a) newton (N) (b) litre (L) (c) metre (m) (d) second (s)
7. 7.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
8. 8.💪 Which force pulls everything towards the Earth? (a) friction (b) gravity (c) wind (d) magnetism
9. 9.Which of these is caused by friction? (a) rubbing hands warms them (b) an apple falls down (c) squeezing a lemon (d) a compass needle turns
10. 10.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
11. 11.💪 Two children push a box to the right, one with 35 N and the other with 50 N. What is the net (total) force on the box, in newtons?
12. 12.True or false: pressing a doorbell is a pull. (a) False (b) True
13. 13.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) gravity (c) friction (d) muscular force
14. 14.💪 Which force is at work: an apple falls down? (a) gravity (b) muscular force (c) friction (d) magnetic force
15. 15.Which of these is caused by magnetic force? (a) a magnet picks up pins (b) rubbing hands warms them (c) brakes stop a bicycle (d) shoes grip the floor
16. 16.💪 A bag has a mass of 14 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
17. 17.True or false: closing a drawer is a push. (a) False (b) True
18. 18.💪 A box weighs 330 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
19. 19.💪 A cart is pulled to the right with 25 N and to the left with 30 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
20. 20.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
21. 21.💪 In a tug of war, one team pulls right with 20 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
22. 22.True or false: pushing a trolley is a push. (a) False (b) True
23. 23.Which of these is caused by gravity? (a) rain falls to the ground (b) pedalling a cycle (c) a rolling ball slows (d) a compass needle turns
24. 24.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
25. 25.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
26. 26.Which of these is caused by muscular force? (a) shoes grip the floor (b) a thrown ball comes down (c) rain falls to the ground (d) lifting a school bag
27. 27.💪 A box weighs 210 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
28. 28.💪 A box weighs 80 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
29. 29.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
30. 30.Which of these is caused by gravity? (a) pedalling a cycle (b) a rolling ball slows (c) a fridge magnet sticks (d) an apple falls down
31. 31.💪 In a tug of war, one team pulls right with 90 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
32. 32.💪 A box weighs 400 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
33. 33.💪 Two children push a box to the right, one with 65 N and the other with 25 N. What is the net (total) force on the box, in newtons?
34. 34.True or false: hitting a cricket ball is a push. (a) True (b) False
35. 35.True or false: kicking a football is a push. (a) True (b) False
36. 36.💪 In a tug of war, one team pulls right with 35 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
37. 37.True or false: pulling up your socks is a pull. (a) False (b) True
38. 38.💪 In a tug of war, one team pulls right with 70 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
39. 39.💪 A cart is pulled to the right with 40 N and to the left with 30 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
40. 40.Which of these is caused by friction? (a) a thrown ball comes down (b) rain falls to the ground (c) pedalling a cycle (d) shoes grip the floor

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