Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 768 · 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 of these is caused by gravity? (a) rubbing hands warms them (b) squeezing a lemon (c) a magnet picks up pins (d) rain falls to the ground
2. 2.💪 Two children push a box to the right, one with 95 N and the other with 80 N. What is the net (total) force on the box, in newtons?
3. 3.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
4. 4.💪 In a tug of war, one team pulls left with 85 N and the other pulls right with 60 N. What is the size of the net force, in newtons?
5. 5.💪 A box weighs 560 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
6. 6.💪 A box weighs 510 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
7. 7.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) muscular force (c) friction (d) gravity
8. 8.💪 Which force is at work: a magnet picks up pins? (a) gravity (b) magnetic force (c) muscular force (d) friction
9. 9.💪 A force is a … (a) push or a pull (b) kind of colour (c) type of sound (d) unit of time
10. 10.💪 Two children push a box to the right, one with 75 N and the other with 75 N. What is the net (total) force on the box, in newtons?
11. 11.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
12. 12.Which of these is caused by friction? (a) a magnet picks up pins (b) brakes stop a bicycle (c) rain falls to the ground (d) pedalling a cycle
13. 13.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
14. 14.💪 A cart is pulled to the right with 30 N and to the left with 45 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
15. 15.True or false: pressing a doorbell is a pull. (a) False (b) True
16. 16.💪 Which force pulls everything towards the Earth? (a) wind (b) gravity (c) friction (d) magnetism
17. 17.Which of these is caused by magnetic force? (a) rain falls to the ground (b) an apple falls down (c) a compass needle turns (d) squeezing a lemon
18. 18.💪 Which force is at work: a fridge magnet sticks? (a) magnetic force (b) friction (c) gravity (d) muscular force
19. 19.💪 Which can a force NOT do? (a) stop it moving (b) change its colour (c) start it moving (d) change its shape
20. 20.💪 Two children push a box to the right, one with 25 N and the other with 65 N. What is the net (total) force on the box, in newtons?
21. 21.True or false: drawing up a well bucket is a push. (a) True (b) False
22. 22.💪 In which unit do we measure force? (a) second (s) (b) metre (m) (c) litre (L) (d) newton (N)
23. 23.💪 In a tug of war, one team pulls right with 35 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
24. 24.Which of these is caused by muscular force? (a) a thrown ball comes down (b) a compass needle turns (c) rain falls to the ground (d) lifting a school bag
25. 25.💪 A cart is pulled to the right with 20 N and to the left with 15 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
26. 26.Which of these is caused by friction? (a) a thrown ball comes down (b) pedalling a cycle (c) a rolling ball slows (d) a river flows downhill
27. 27.💪 A box weighs 140 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
28. 28.💪 Two children push a box to the right, one with 25 N and the other with 90 N. What is the net (total) force on the box, in newtons?
29. 29.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) balanced (c) gravity (d) doubled
30. 30.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) gravity (c) friction (d) muscular force
31. 31.True or false: pulling a cart is a pull. (a) True (b) False
32. 32.Which of these is caused by friction? (a) pedalling a cycle (b) rain falls to the ground (c) rubbing hands warms them (d) lifting a school bag
33. 33.💪 Which force is at work: squeezing a lemon? (a) gravity (b) muscular force (c) friction (d) magnetic force
34. 34.True or false: pushing a swing is a pull. (a) False (b) True
35. 35.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
36. 36.Which of these is caused by muscular force? (a) a compass needle turns (b) an apple falls down (c) a thrown ball comes down (d) pedalling a cycle
37. 37.💪 A bag has a mass of 21 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
38. 38.💪 In a tug of war, one team pulls left with 45 N and the other pulls right with 40 N. What is the size of the net force, in newtons?
39. 39.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) an apple falls down (c) rain falls to the ground (d) a fridge magnet sticks
40. 40.True or false: pulling a cart is a push. (a) False (b) True

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