Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 431 · 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.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
2. 2.💪 Two children push a box to the right, one with 45 N and the other with 45 N. What is the net (total) force on the box, in newtons?
3. 3.💪 In a tug of war, one team pulls right with 50 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
4. 4.💪 In a tug of war, one team pulls left with 30 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
5. 5.💪 Which force is at work: lifting a school bag? (a) friction (b) muscular force (c) magnetic force (d) gravity
6. 6.True or false: plucking a mango is a push. (a) True (b) False
7. 7.💪 Which can a force NOT do? (a) start it moving (b) change its shape (c) change its colour (d) stop it moving
8. 8.💪 Which force is at work: a compass needle turns? (a) gravity (b) muscular force (c) friction (d) magnetic force
9. 9.💪 Which force is at work: squeezing a lemon? (a) magnetic force (b) muscular force (c) friction (d) gravity
10. 10.True or false: pressing a doorbell is a pull. (a) False (b) True
11. 11.💪 A cart is pulled to the right with 70 N and to the left with 55 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
12. 12.💪 A cart is pulled to the right with 35 N and to the left with 40 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
13. 13.💪 Two children push a box to the right, one with 5 N and the other with 20 N. What is the net (total) force on the box, in newtons?
14. 14.💪 Which force is at work: pedalling a cycle? (a) friction (b) magnetic force (c) muscular force (d) gravity
15. 15.💪 Two children push a box to the right, one with 80 N and the other with 45 N. What is the net (total) force on the box, in newtons?
16. 16.💪 A box weighs 290 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
17. 17.True or false: pushing a trolley is a push. (a) True (b) False
18. 18.Which of these is caused by gravity? (a) an apple falls down (b) a fridge magnet sticks (c) pedalling a cycle (d) a compass needle turns
19. 19.True or false: pressing a doorbell is a push. (a) False (b) True
20. 20.True or false: pulling up your socks is a pull. (a) False (b) True
21. 21.💪 In which unit do we measure force? (a) second (s) (b) litre (L) (c) metre (m) (d) newton (N)
22. 22.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
23. 23.Which of these is caused by magnetic force? (a) rain falls to the ground (b) brakes stop a bicycle (c) a river flows downhill (d) a magnet picks up pins
24. 24.💪 Which force is at work: a river flows downhill? (a) muscular force (b) gravity (c) friction (d) magnetic force
25. 25.💪 A box weighs 370 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
26. 26.💪 Two children push a box to the right, one with 45 N and the other with 65 N. What is the net (total) force on the box, in newtons?
27. 27.True or false: pulling a cart is a pull. (a) True (b) False
28. 28.💪 Which force is at work: brakes stop a bicycle? (a) friction (b) gravity (c) magnetic force (d) muscular force
29. 29.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) gravity (c) doubled (d) balanced
30. 30.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
31. 31.Which of these is caused by friction? (a) a fridge magnet sticks (b) rubbing hands warms them (c) lifting a school bag (d) a river flows downhill
32. 32.💪 In a tug of war, one team pulls left with 75 N and the other pulls right with 30 N. What is the size of the net force, in newtons?
33. 33.💪 A bag has a mass of 45 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
34. 34.True or false: kicking a football is a pull. (a) True (b) False
35. 35.💪 A bag has a mass of 50 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
36. 36.💪 Which force pulls everything towards the Earth? (a) gravity (b) friction (c) wind (d) magnetism
37. 37.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
38. 38.💪 Two children push a box to the right, one with 85 N and the other with 15 N. What is the net (total) force on the box, in newtons?
39. 39.Which of these is caused by muscular force? (a) an apple falls down (b) a thrown ball comes down (c) pedalling a cycle (d) a river flows downhill
40. 40.💪 A box weighs 160 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?

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