Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 191 · 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 20 N and the other with 75 N. What is the net (total) force on the box, in newtons?
2. 2.Which of these is caused by friction? (a) a fridge magnet sticks (b) an apple falls down (c) a rolling ball slows (d) a river flows downhill
3. 3.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) balanced (c) gravity (d) doubled
4. 4.💪 A cart is pulled to the right with 45 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
5. 5.True or false: plucking a mango is a push. (a) False (b) True
6. 6.💪 In which unit do we measure force? (a) litre (L) (b) metre (m) (c) newton (N) (d) second (s)
7. 7.💪 A box weighs 420 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
8. 8.True or false: pulling up your socks is a push. (a) True (b) False
9. 9.💪 A bag has a mass of 34 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
10. 10.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
11. 11.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
12. 12.True or false: opening a drawer is a pull. (a) True (b) False
13. 13.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
14. 14.💪 Which force is at work: pedalling a cycle? (a) magnetic force (b) friction (c) muscular force (d) gravity
15. 15.True or false: pushing a swing is a push. (a) True (b) False
16. 16.True or false: drawing up a well bucket is a push. (a) False (b) True
17. 17.Which of these is caused by friction? (a) pedalling a cycle (b) a thrown ball comes down (c) squeezing a lemon (d) rubbing hands warms them
18. 18.Which of these is caused by friction? (a) a compass needle turns (b) a magnet picks up pins (c) an apple falls down (d) shoes grip the floor
19. 19.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
20. 20.💪 In a tug of war, one team pulls left with 75 N and the other pulls right with 50 N. What is the size of the net force, in newtons?
21. 21.True or false: pushing a swing is a pull. (a) True (b) False
22. 22.True or false: kicking a football is a pull. (a) False (b) True
23. 23.Which of these is caused by magnetic force? (a) a thrown ball comes down (b) a rolling ball slows (c) squeezing a lemon (d) a magnet picks up pins
24. 24.💪 Which can a force NOT do? (a) change its shape (b) start it moving (c) change its colour (d) stop it moving
25. 25.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
26. 26.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
27. 27.💪 A bag has a mass of 19 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
28. 28.True or false: plucking a mango is a pull. (a) False (b) True
29. 29.True or false: pushing a trolley is a pull. (a) True (b) False
30. 30.💪 A bag has a mass of 13 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
31. 31.💪 Which force is at work: a compass needle turns? (a) muscular force (b) friction (c) gravity (d) magnetic force
32. 32.True or false: kicking a football is a push. (a) True (b) False
33. 33.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
34. 34.💪 Which force is at work: a rolling ball slows? (a) friction (b) magnetic force (c) muscular force (d) gravity
35. 35.💪 A box weighs 10 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
36. 36.💪 Which force is at work: a fridge magnet sticks? (a) magnetic force (b) gravity (c) muscular force (d) friction
37. 37.💪 A force is a … (a) push or a pull (b) kind of colour (c) type of sound (d) unit of time
38. 38.Which of these is caused by magnetic force? (a) a rolling ball slows (b) brakes stop a bicycle (c) shoes grip the floor (d) a compass needle turns
39. 39.💪 Two children push a box to the right, one with 5 N and the other with 75 N. What is the net (total) force on the box, in newtons?
40. 40.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) friction (c) muscular force (d) gravity

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