Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 655 · 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 90 N and the other with 45 N. What is the net (total) force on the box, in newtons?
2. 2.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) doubled (c) balanced (d) unbalanced
3. 3.💪 Which force pulls everything towards the Earth? (a) friction (b) gravity (c) wind (d) magnetism
4. 4.💪 A force is a … (a) type of sound (b) kind of colour (c) unit of time (d) push or a pull
5. 5.True or false: pressing a doorbell is a pull. (a) True (b) False
6. 6.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
7. 7.💪 Which force is at work: pedalling a cycle? (a) magnetic force (b) friction (c) muscular force (d) gravity
8. 8.💪 In a tug of war, one team pulls right with 30 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
9. 9.💪 A cart is pulled to the right with 30 N and to the left with 20 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
10. 10.Which of these is caused by magnetic force? (a) rain falls to the ground (b) a rolling ball slows (c) a fridge magnet sticks (d) a river flows downhill
11. 11.💪 Which force is at work: brakes stop a bicycle? (a) friction (b) gravity (c) muscular force (d) magnetic force
12. 12.💪 In a tug of war, one team pulls right with 65 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
13. 13.💪 Which force is at work: squeezing a lemon? (a) gravity (b) magnetic force (c) friction (d) muscular force
14. 14.💪 Two children push a box to the right, one with 75 N and the other with 60 N. What is the net (total) force on the box, in newtons?
15. 15.Which of these is caused by muscular force? (a) lifting a school bag (b) a magnet picks up pins (c) a thrown ball comes down (d) a rolling ball slows
16. 16.💪 Which can a force NOT do? (a) change its colour (b) stop it moving (c) start it moving (d) change its shape
17. 17.💪 Which force is at work: a compass needle turns? (a) gravity (b) muscular force (c) friction (d) magnetic force
18. 18.Which of these is caused by magnetic force? (a) an apple falls down (b) rubbing hands warms them (c) a compass needle turns (d) pedalling a cycle
19. 19.Which of these is caused by friction? (a) a thrown ball comes down (b) a fridge magnet sticks (c) an apple falls down (d) rubbing hands warms them
20. 20.💪 In which unit do we measure force? (a) metre (m) (b) second (s) (c) litre (L) (d) newton (N)
21. 21.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
22. 22.True or false: hitting a cricket ball is a push. (a) True (b) False
23. 23.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
24. 24.💪 A bag has a mass of 34 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
25. 25.True or false: pressing a doorbell is a push. (a) False (b) True
26. 26.💪 In a tug of war, one team pulls left with 40 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
27. 27.💪 In a tug of war, one team pulls right with 95 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
28. 28.💪 In a tug of war, one team pulls left with 60 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
29. 29.💪 In a tug of war, one team pulls right with 70 N and the other pulls left with 45 N. What is the size of the net force, in newtons?
30. 30.True or false: closing a drawer is a push. (a) True (b) False
31. 31.💪 A box weighs 320 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
32. 32.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
33. 33.Which of these is caused by muscular force? (a) a rolling ball slows (b) pedalling a cycle (c) shoes grip the floor (d) a fridge magnet sticks
34. 34.💪 A box weighs 360 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
35. 35.💪 A cart is pulled to the right with 25 N and to the left with 15 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
36. 36.💪 Two children push a box to the right, one with 50 N and the other with 10 N. What is the net (total) force on the box, in newtons?
37. 37.Which of these is caused by muscular force? (a) a compass needle turns (b) a river flows downhill (c) a rolling ball slows (d) squeezing a lemon
38. 38.💪 In a tug of war, one team pulls left with 100 N and the other pulls right with 45 N. What is the size of the net force, in newtons?
39. 39.💪 In a tug of war, one team pulls right with 75 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
40. 40.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push

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