Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 382 · 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.💪 Two children push a box to the right, one with 30 N and the other with 75 N. What is the net (total) force on the box, in newtons?
2. 2.💪 Two children push a box to the right, one with 20 N and the other with 15 N. What is the net (total) force on the box, in newtons?
3. 3.💪 Two children push a box to the right, one with 75 N and the other with 55 N. What is the net (total) force on the box, in newtons?
4. 4.Which of these is caused by magnetic force? (a) pedalling a cycle (b) lifting a school bag (c) rubbing hands warms them (d) a compass needle turns
5. 5.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
6. 6.💪 A cart is pulled to the right with 45 N and to the left with 50 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
7. 7.💪 Which force is at work: shoes grip the floor? (a) friction (b) magnetic force (c) muscular force (d) gravity
8. 8.True or false: closing a drawer is a pull. (a) True (b) False
9. 9.💪 Which can a force NOT do? (a) stop it moving (b) start it moving (c) change its shape (d) change its colour
10. 10.Which of these is caused by muscular force? (a) a fridge magnet sticks (b) a rolling ball slows (c) lifting a school bag (d) shoes grip the floor
11. 11.💪 Two children push a box to the right, one with 70 N and the other with 60 N. What is the net (total) force on the box, in newtons?
12. 12.💪 Which force is at work: an apple falls down? (a) friction (b) magnetic force (c) muscular force (d) gravity
13. 13.💪 Which force is at work: a magnet picks up pins? (a) muscular force (b) friction (c) magnetic force (d) gravity
14. 14.💪 In which unit do we measure force? (a) newton (N) (b) second (s) (c) litre (L) (d) metre (m)
15. 15.True or false: pushing a trolley is a pull. (a) False (b) True
16. 16.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) magnetic force (c) friction (d) muscular force
17. 17.Which of these is caused by magnetic force? (a) a fridge magnet sticks (b) brakes stop a bicycle (c) a thrown ball comes down (d) shoes grip the floor
18. 18.💪 In a tug of war, one team pulls left with 15 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
19. 19.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) gravity (c) doubled (d) unbalanced
20. 20.💪 A cart is pulled to the right with 100 N and to the left with 115 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
21. 21.Which of these is caused by friction? (a) a thrown ball comes down (b) lifting a school bag (c) a fridge magnet sticks (d) rubbing hands warms them
22. 22.💪 A force is a … (a) type of sound (b) push or a pull (c) kind of colour (d) unit of time
23. 23.💪 In a tug of war, one team pulls right with 65 N and the other pulls left with 55 N. What is the size of the net force, in newtons?
24. 24.True or false: kicking a football is a push. (a) False (b) True
25. 25.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
26. 26.Which of these is caused by friction? (a) an apple falls down (b) a thrown ball comes down (c) a rolling ball slows (d) pedalling a cycle
27. 27.💪 Two children push a box to the right, one with 10 N and the other with 40 N. What is the net (total) force on the box, in newtons?
28. 28.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
29. 29.Which of these is caused by muscular force? (a) shoes grip the floor (b) a river flows downhill (c) rain falls to the ground (d) squeezing a lemon
30. 30.Which of these is caused by magnetic force? (a) squeezing a lemon (b) shoes grip the floor (c) a rolling ball slows (d) a magnet picks up pins
31. 31.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
32. 32.💪 In a tug of war, one team pulls right with 90 N and the other pulls left with 50 N. What is the size of the net force, in newtons?
33. 33.True or false: closing a drawer is a push. (a) True (b) False
34. 34.💪 A box weighs 190 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
35. 35.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
36. 36.💪 A bag has a mass of 24 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
37. 37.True or false: pressing a doorbell is a pull. (a) False (b) True
38. 38.True or false: plucking a mango is a push. (a) True (b) False
39. 39.💪 Which force is at work: rain falls to the ground? (a) gravity (b) friction (c) magnetic force (d) muscular force
40. 40.💪 A bag has a mass of 3 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?

Free engineering lessons, practice and worksheets at talentjr.in/engineering-for-kids