Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 599 · 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 muscular force? (a) a river flows downhill (b) pedalling a cycle (c) a compass needle turns (d) brakes stop a bicycle
2. 2.💪 A box weighs 590 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
3. 3.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
4. 4.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
5. 5.True or false: pulling a cart is a pull. (a) False (b) True
6. 6.True or false: plucking a mango is a pull. (a) False (b) True
7. 7.True or false: pushing a swing is a pull. (a) False (b) True
8. 8.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
9. 9.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
10. 10.💪 Which force is at work: lifting a school bag? (a) gravity (b) friction (c) muscular force (d) magnetic force
11. 11.True or false: pushing a trolley is a pull. (a) True (b) False
12. 12.Which of these is caused by muscular force? (a) lifting a school bag (b) a thrown ball comes down (c) a magnet picks up pins (d) rubbing hands warms them
13. 13.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) gravity (c) doubled (d) unbalanced
14. 14.True or false: pressing a doorbell is a pull. (a) True (b) False
15. 15.💪 A force is a … (a) unit of time (b) kind of colour (c) push or a pull (d) type of sound
16. 16.💪 A bag has a mass of 34 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
17. 17.Which of these is caused by friction? (a) a river flows downhill (b) a compass needle turns (c) shoes grip the floor (d) a fridge magnet sticks
18. 18.Which of these is caused by friction? (a) brakes stop a bicycle (b) rain falls to the ground (c) a thrown ball comes down (d) a river flows downhill
19. 19.Which of these is caused by gravity? (a) brakes stop a bicycle (b) rain falls to the ground (c) pedalling a cycle (d) shoes grip the floor
20. 20.💪 In a tug of war, one team pulls right with 70 N and the other pulls left with 60 N. What is the size of the net force, in newtons?
21. 21.💪 Two children push a box to the right, one with 15 N and the other with 85 N. What is the net (total) force on the box, in newtons?
22. 22.💪 Which force is at work: a river flows downhill? (a) muscular force (b) friction (c) magnetic force (d) gravity
23. 23.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) magnetic force (c) muscular force (d) friction
24. 24.True or false: hitting a cricket ball is a pull. (a) True (b) False
25. 25.💪 A cart is pulled to the right with 90 N and to the left with 75 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
26. 26.💪 Two children push a box to the right, one with 25 N and the other with 25 N. What is the net (total) force on the box, in newtons?
27. 27.💪 Which force is at work: rain falls to the ground? (a) friction (b) gravity (c) muscular force (d) magnetic force
28. 28.💪 Which force is at work: a fridge magnet sticks? (a) magnetic force (b) friction (c) muscular force (d) gravity
29. 29.💪 A bag has a mass of 46 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
30. 30.True or false: a tug of war is a pull. (a) True (b) False
31. 31.True or false: a tug of war is a push. (a) False (b) True
32. 32.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
33. 33.Which of these is caused by gravity? (a) squeezing a lemon (b) a river flows downhill (c) lifting a school bag (d) a compass needle turns
34. 34.💪 Which can a force NOT do? (a) change its colour (b) change its shape (c) stop it moving (d) start it moving
35. 35.💪 In which unit do we measure force? (a) second (s) (b) metre (m) (c) litre (L) (d) newton (N)
36. 36.💪 Which force is at work: a rolling ball slows? (a) friction (b) muscular force (c) magnetic force (d) gravity
37. 37.💪 A cart is pulled to the right with 40 N and to the left with 50 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
38. 38.💪 Two children push a box to the right, one with 35 N and the other with 85 N. What is the net (total) force on the box, in newtons?
39. 39.💪 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
40. 40.💪 Which force is at work: a compass needle turns? (a) muscular force (b) magnetic force (c) friction (d) gravity

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