Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 697 · 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.💪 In which unit do we measure force? (a) litre (L) (b) second (s) (c) metre (m) (d) newton (N)
2. 2.💪 Two children push a box to the right, one with 65 N and the other with 50 N. What is the net (total) force on the box, in newtons?
3. 3.💪 Which force is at work: a compass needle turns? (a) friction (b) magnetic force (c) gravity (d) muscular force
4. 4.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) friction (c) muscular force (d) magnetic force
5. 5.Which of these is caused by magnetic force? (a) rubbing hands warms them (b) a magnet picks up pins (c) brakes stop a bicycle (d) squeezing a lemon
6. 6.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
7. 7.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
8. 8.Which of these is caused by gravity? (a) a magnet picks up pins (b) rubbing hands warms them (c) brakes stop a bicycle (d) an apple falls down
9. 9.True or false: kicking a football is a push. (a) False (b) True
10. 10.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
11. 11.💪 Which force is at work: an apple falls down? (a) muscular force (b) magnetic force (c) friction (d) gravity
12. 12.💪 A box weighs 160 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
13. 13.💪 A box weighs 550 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
14. 14.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
15. 15.💪 In a tug of war, one team pulls right with 55 N and the other pulls left with 30 N. What is the size of the net force, in newtons?
16. 16.💪 A bag has a mass of 37 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
17. 17.💪 Two children push a box to the right, one with 50 N and the other with 45 N. What is the net (total) force on the box, in newtons?
18. 18.Which of these is caused by friction? (a) squeezing a lemon (b) brakes stop a bicycle (c) a river flows downhill (d) lifting a school bag
19. 19.💪 In a tug of war, one team pulls left with 85 N and the other pulls right with 40 N. What is the size of the net force, in newtons?
20. 20.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
21. 21.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
22. 22.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) friction (c) muscular force (d) gravity
23. 23.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) rain falls to the ground (c) a thrown ball comes down (d) squeezing a lemon
24. 24.💪 A bag has a mass of 11 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
25. 25.💪 A cart is pulled to the right with 30 N and to the left with 40 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
26. 26.💪 A bag has a mass of 51 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
27. 27.Which of these is caused by magnetic force? (a) a river flows downhill (b) a thrown ball comes down (c) rain falls to the ground (d) a fridge magnet sticks
28. 28.💪 Two children push a box to the right, one with 100 N and the other with 25 N. What is the net (total) force on the box, in newtons?
29. 29.Which of these is caused by muscular force? (a) an apple falls down (b) brakes stop a bicycle (c) a thrown ball comes down (d) lifting a school bag
30. 30.True or false: pulling a cart is a push. (a) False (b) True
31. 31.💪 Which force pulls everything towards the Earth? (a) magnetism (b) friction (c) gravity (d) wind
32. 32.💪 A bag has a mass of 52 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
33. 33.True or false: plucking a mango is a pull. (a) False (b) True
34. 34.Which of these is caused by gravity? (a) a thrown ball comes down (b) brakes stop a bicycle (c) a fridge magnet sticks (d) shoes grip the floor
35. 35.💪 A cart is pulled to the right with 90 N and to the left with 85 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
36. 36.True or false: closing a drawer is a push. (a) False (b) True
37. 37.True or false: pulling up your socks is a pull. (a) True (b) False
38. 38.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
39. 39.💪 Two children push a box to the right, one with 30 N and the other with 5 N. What is the net (total) force on the box, in newtons?
40. 40.True or false: a tug of war is a pull. (a) True (b) False

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