Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 693 · 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 force is a … (a) unit of time (b) kind of colour (c) push or a pull (d) type of sound
2. 2.💪 Which force is at work: an apple falls down? (a) muscular force (b) magnetic force (c) friction (d) gravity
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) muscular force (b) magnetic force (c) friction (d) gravity
5. 5.True or false: pulling up your socks is a push. (a) True (b) False
6. 6.True or false: plucking a mango is a pull. (a) False (b) True
7. 7.💪 A box weighs 510 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
8. 8.True or false: pushing a trolley is a pull. (a) False (b) True
9. 9.💪 A cart is pulled to the right with 85 N and to the left with 85 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
10. 10.💪 In a tug of war, one team pulls left with 100 N and the other pulls right with 30 N. What is the size of the net force, in newtons?
11. 11.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
12. 12.💪 A box weighs 20 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
13. 13.💪 A bag has a mass of 30 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
14. 14.💪 A bag has a mass of 32 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
15. 15.Which of these is caused by friction? (a) pedalling a cycle (b) a compass needle turns (c) a fridge magnet sticks (d) a rolling ball slows
16. 16.Which of these is caused by gravity? (a) lifting a school bag (b) an apple falls down (c) shoes grip the floor (d) rubbing hands warms them
17. 17.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
18. 18.Which of these is caused by muscular force? (a) a fridge magnet sticks (b) shoes grip the floor (c) lifting a school bag (d) rain falls to the ground
19. 19.Which of these is caused by muscular force? (a) squeezing a lemon (b) brakes stop a bicycle (c) a rolling ball slows (d) shoes grip the floor
20. 20.💪 A cart is pulled to the right with 50 N and to the left with 65 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
21. 21.💪 Which force is at work: a magnet picks up pins? (a) muscular force (b) magnetic force (c) gravity (d) friction
22. 22.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) doubled (c) gravity (d) balanced
23. 23.💪 Which force pulls everything towards the Earth? (a) friction (b) magnetism (c) wind (d) gravity
24. 24.Which of these is caused by gravity? (a) squeezing a lemon (b) pedalling a cycle (c) shoes grip the floor (d) a thrown ball comes down
25. 25.Which of these is caused by muscular force? (a) pedalling a cycle (b) rain falls to the ground (c) brakes stop a bicycle (d) shoes grip the floor
26. 26.💪 In a tug of war, one team pulls left with 80 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
27. 27.💪 In which unit do we measure force? (a) newton (N) (b) second (s) (c) litre (L) (d) metre (m)
28. 28.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
29. 29.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
30. 30.Which of these is caused by friction? (a) lifting a school bag (b) a thrown ball comes down (c) a river flows downhill (d) shoes grip the floor
31. 31.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
32. 32.True or false: drawing up a well bucket is a pull. (a) False (b) True
33. 33.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
34. 34.💪 In a tug of war, one team pulls left with 95 N and the other pulls right with 80 N. What is the size of the net force, in newtons?
35. 35.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) friction (c) gravity (d) magnetic force
36. 36.💪 A cart is pulled to the right with 40 N and to the left with 45 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
37. 37.💪 A bag has a mass of 28 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
38. 38.💪 A bag has a mass of 15 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
39. 39.💪 Two children push a box to the right, one with 15 N and the other with 95 N. What is the net (total) force on the box, in newtons?
40. 40.💪 A bag has a mass of 22 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?

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