Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 522 · 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 pulling a cart a push or a pull? (a) a pull (b) a push
2. 2.💪 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 left (b) to the right (c) no net force
3. 3.True or false: closing a drawer is a pull. (a) True (b) False
4. 4.💪 In a tug of war, one team pulls right with 100 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
5. 5.💪 A cart is pulled to the right with 50 N and to the left with 40 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
6. 6.💪 Two children push a box to the right, one with 45 N and the other with 10 N. What is the net (total) force on the box, in newtons?
7. 7.True or false: plucking a mango is a pull. (a) True (b) False
8. 8.💪 A box weighs 560 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
9. 9.True or false: pulling a cart is a push. (a) True (b) False
10. 10.💪 A cart is pulled to the right with 75 N and to the left with 60 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
11. 11.Which of these is caused by gravity? (a) rubbing hands warms them (b) squeezing a lemon (c) a river flows downhill (d) a rolling ball slows
12. 12.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
13. 13.True or false: pressing a doorbell is a push. (a) False (b) True
14. 14.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) unbalanced (c) doubled (d) balanced
15. 15.💪 A bag has a mass of 42 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
16. 16.💪 A force is a … (a) type of sound (b) unit of time (c) kind of colour (d) push or a pull
17. 17.💪 A cart is pulled to the right with 20 N and to the left with 5 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
18. 18.Which of these is caused by gravity? (a) shoes grip the floor (b) an apple falls down (c) squeezing a lemon (d) a magnet picks up pins
19. 19.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
20. 20.Which of these is caused by friction? (a) a thrown ball comes down (b) a river flows downhill (c) an apple falls down (d) brakes stop a bicycle
21. 21.💪 A cart is pulled to the right with 35 N and to the left with 45 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
22. 22.💪 Two children push a box to the right, one with 5 N and the other with 60 N. What is the net (total) force on the box, in newtons?
23. 23.💪 In which unit do we measure force? (a) newton (N) (b) second (s) (c) metre (m) (d) litre (L)
24. 24.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
25. 25.True or false: pressing a doorbell is a pull. (a) False (b) True
26. 26.💪 Which force pulls everything towards the Earth? (a) wind (b) gravity (c) friction (d) magnetism
27. 27.💪 Which force is at work: a river flows downhill? (a) gravity (b) magnetic force (c) muscular force (d) friction
28. 28.True or false: pushing a swing is a pull. (a) True (b) False
29. 29.💪 Which force is at work: a compass needle turns? (a) magnetic force (b) friction (c) muscular force (d) gravity
30. 30.Which of these is caused by friction? (a) a river flows downhill (b) squeezing a lemon (c) pedalling a cycle (d) shoes grip the floor
31. 31.💪 Which can a force NOT do? (a) change its shape (b) change its colour (c) start it moving (d) stop it moving
32. 32.💪 Which force is at work: brakes stop a bicycle? (a) muscular force (b) friction (c) gravity (d) magnetic force
33. 33.💪 Which force is at work: lifting a school bag? (a) gravity (b) muscular force (c) friction (d) magnetic force
34. 34.True or false: pushing a trolley is a push. (a) True (b) False
35. 35.💪 A bag has a mass of 39 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
36. 36.💪 Which force is at work: pedalling a cycle? (a) friction (b) gravity (c) magnetic force (d) muscular force
37. 37.💪 In a tug of war, one team pulls right with 75 N and the other pulls left with 70 N. What is the size of the net force, in newtons?
38. 38.Which of these is caused by muscular force? (a) a rolling ball slows (b) rubbing hands warms them (c) a fridge magnet sticks (d) squeezing a lemon
39. 39.💪 In a tug of war, one team pulls right with 75 N and the other pulls left with 60 N. What is the size of the net force, in newtons?
40. 40.💪 In a tug of war, one team pulls right with 40 N and the other pulls left with 5 N. What is the size of the net force, in newtons?

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