Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 454 · 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: a tug of war is a push. (a) True (b) False
2. 2.True or false: closing a drawer is a push. (a) False (b) True
3. 3.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) muscular force (c) magnetic force (d) gravity
4. 4.💪 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?
5. 5.True or false: plucking a mango is a pull. (a) False (b) True
6. 6.💪 Which force is at work: pedalling a cycle? (a) friction (b) magnetic force (c) muscular force (d) gravity
7. 7.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) magnetic force (c) friction (d) gravity
8. 8.True or false: opening a drawer is a pull. (a) True (b) False
9. 9.💪 A bag has a mass of 55 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
10. 10.💪 Which force is at work: an apple falls down? (a) friction (b) muscular force (c) magnetic force (d) gravity
11. 11.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
12. 12.💪 A bag has a mass of 43 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
13. 13.💪 A cart is pulled to the right with 35 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
14. 14.True or false: pushing a swing is a push. (a) True (b) False
15. 15.Which of these is caused by gravity? (a) brakes stop a bicycle (b) pedalling a cycle (c) a compass needle turns (d) a river flows downhill
16. 16.Which of these is caused by magnetic force? (a) a compass needle turns (b) a rolling ball slows (c) shoes grip the floor (d) rain falls to the ground
17. 17.💪 Which force is at work: brakes stop a bicycle? (a) friction (b) gravity (c) magnetic force (d) muscular force
18. 18.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) muscular force (c) gravity (d) friction
19. 19.Which of these is caused by friction? (a) a fridge magnet sticks (b) a river flows downhill (c) rain falls to the ground (d) rubbing hands warms them
20. 20.True or false: pressing a doorbell is a push. (a) False (b) True
21. 21.True or false: kicking a football is a push. (a) False (b) True
22. 22.💪 In a tug of war, one team pulls right with 75 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
23. 23.💪 A bag has a mass of 13 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
24. 24.💪 Two children push a box to the right, one with 100 N and the other with 30 N. What is the net (total) force on the box, in newtons?
25. 25.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
26. 26.💪 A box weighs 230 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
27. 27.💪 A bag has a mass of 32 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
28. 28.💪 A cart is pulled to the right with 90 N and to the left with 90 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
29. 29.💪 In which unit do we measure force? (a) newton (N) (b) metre (m) (c) second (s) (d) litre (L)
30. 30.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
31. 31.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) doubled (c) gravity (d) unbalanced
32. 32.Which of these is caused by gravity? (a) an apple falls down (b) lifting a school bag (c) a rolling ball slows (d) squeezing a lemon
33. 33.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
34. 34.True or false: pulling up your socks is a push. (a) True (b) False
35. 35.💪 A bag has a mass of 18 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
36. 36.True or false: pushing a trolley is a push. (a) True (b) False
37. 37.💪 A box weighs 130 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
38. 38.True or false: pushing a swing is a pull. (a) False (b) True
39. 39.💪 A cart is pulled to the right with 75 N and to the left with 80 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
40. 40.💪 Which can a force NOT do? (a) change its shape (b) start it moving (c) stop it moving (d) change its colour

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