Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 931 · 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.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) magnetic force (c) gravity (d) friction
2. 2.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
3. 3.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
4. 4.💪 In a tug of war, one team pulls right with 90 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
5. 5.True or false: pulling a cart is a pull. (a) False (b) True
6. 6.💪 In which unit do we measure force? (a) newton (N) (b) litre (L) (c) second (s) (d) metre (m)
7. 7.True or false: closing a drawer is a pull. (a) True (b) False
8. 8.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) muscular force (c) magnetic force (d) friction
9. 9.Which of these is caused by magnetic force? (a) rubbing hands warms them (b) a magnet picks up pins (c) rain falls to the ground (d) pedalling a cycle
10. 10.Which of these is caused by muscular force? (a) lifting a school bag (b) a thrown ball comes down (c) a river flows downhill (d) a rolling ball slows
11. 11.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
12. 12.💪 A bag has a mass of 13 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
13. 13.💪 A force is a … (a) type of sound (b) unit of time (c) push or a pull (d) kind of colour
14. 14.💪 Which force is at work: pedalling a cycle? (a) gravity (b) magnetic force (c) friction (d) muscular force
15. 15.💪 Two children push a box to the right, one with 80 N and the other with 40 N. What is the net (total) force on the box, in newtons?
16. 16.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
17. 17.💪 Two children push a box to the right, one with 75 N and the other with 70 N. What is the net (total) force on the box, in newtons?
18. 18.💪 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) to the right (c) no net force
19. 19.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) unbalanced (c) doubled (d) gravity
20. 20.💪 Two children push a box to the right, one with 35 N and the other with 100 N. What is the net (total) force on the box, in newtons?
21. 21.Which of these is caused by magnetic force? (a) an apple falls down (b) rubbing hands warms them (c) a compass needle turns (d) lifting a school bag
22. 22.True or false: kicking a football is a push. (a) True (b) False
23. 23.💪 In a tug of war, one team pulls right with 95 N and the other pulls left with 45 N. What is the size of the net force, in newtons?
24. 24.Which of these is caused by gravity? (a) a fridge magnet sticks (b) a compass needle turns (c) an apple falls down (d) a magnet picks up pins
25. 25.Which of these is caused by friction? (a) squeezing a lemon (b) rain falls to the ground (c) shoes grip the floor (d) a fridge magnet sticks
26. 26.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
27. 27.💪 Which force is at work: an apple falls down? (a) friction (b) muscular force (c) gravity (d) magnetic force
28. 28.True or false: drawing up a well bucket is a push. (a) True (b) False
29. 29.True or false: opening a drawer is a push. (a) True (b) False
30. 30.True or false: pushing a trolley is a pull. (a) False (b) True
31. 31.💪 A bag has a mass of 11 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
32. 32.💪 In a tug of war, one team pulls right with 15 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
33. 33.💪 In a tug of war, one team pulls left with 40 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
34. 34.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
35. 35.💪 Which force pulls everything towards the Earth? (a) magnetism (b) wind (c) friction (d) gravity
36. 36.True or false: pushing a trolley is a push. (a) True (b) False
37. 37.💪 A bag has a mass of 23 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
38. 38.💪 A box weighs 450 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
39. 39.💪 A box weighs 120 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
40. 40.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) gravity (c) magnetic force (d) friction

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