Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 224 · 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 hitting a cricket ball a push or a pull? (a) a push (b) a pull
2. 2.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) muscular force (c) friction (d) gravity
3. 3.💪 Two children push a box to the right, one with 40 N and the other with 85 N. What is the net (total) force on the box, in newtons?
4. 4.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
5. 5.True or false: drawing up a well bucket is a push. (a) True (b) False
6. 6.Which of these is caused by gravity? (a) squeezing a lemon (b) a river flows downhill (c) pedalling a cycle (d) brakes stop a bicycle
7. 7.💪 Which force is at work: a compass needle turns? (a) gravity (b) friction (c) magnetic force (d) muscular force
8. 8.💪 Which force is at work: brakes stop a bicycle? (a) magnetic force (b) muscular force (c) gravity (d) friction
9. 9.True or false: pushing a swing is a pull. (a) False (b) True
10. 10.💪 A force is a … (a) kind of colour (b) type of sound (c) unit of time (d) push or a pull
11. 11.True or false: closing a drawer is a pull. (a) False (b) True
12. 12.True or false: pressing a doorbell is a pull. (a) True (b) False
13. 13.True or false: pressing a doorbell is a push. (a) False (b) True
14. 14.True or false: plucking a mango is a pull. (a) False (b) True
15. 15.💪 In a tug of war, one team pulls right with 20 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
16. 16.💪 A cart is pulled to the right with 75 N and to the left with 85 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
17. 17.💪 In a tug of war, one team pulls left with 90 N and the other pulls right with 35 N. What is the size of the net force, in newtons?
18. 18.💪 In a tug of war, one team pulls right with 10 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
19. 19.💪 In which unit do we measure force? (a) second (s) (b) metre (m) (c) litre (L) (d) newton (N)
20. 20.Which of these is caused by gravity? (a) rain falls to the ground (b) a fridge magnet sticks (c) squeezing a lemon (d) rubbing hands warms them
21. 21.True or false: pushing a trolley is a pull. (a) True (b) False
22. 22.💪 Two children push a box to the right, one with 80 N and the other with 30 N. What is the net (total) force on the box, in newtons?
23. 23.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
24. 24.💪 A bag has a mass of 22 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
25. 25.Which of these is caused by gravity? (a) rubbing hands warms them (b) an apple falls down (c) lifting a school bag (d) shoes grip the floor
26. 26.💪 Which can a force NOT do? (a) change its colour (b) start it moving (c) stop it moving (d) change its shape
27. 27.💪 Which force is at work: squeezing a lemon? (a) muscular force (b) friction (c) magnetic force (d) gravity
28. 28.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) unbalanced (c) gravity (d) doubled
29. 29.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) gravity (c) friction (d) magnetic force
30. 30.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) a fridge magnet sticks (c) rain falls to the ground (d) lifting a school bag
31. 31.True or false: pushing a trolley is a push. (a) False (b) True
32. 32.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
33. 33.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
34. 34.💪 Which force is at work: a fridge magnet sticks? (a) magnetic force (b) friction (c) muscular force (d) gravity
35. 35.💪 A box weighs 260 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
36. 36.💪 A box weighs 40 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
37. 37.💪 In a tug of war, one team pulls left with 30 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
38. 38.True or false: a tug of war is a pull. (a) True (b) False
39. 39.💪 Which force is at work: a magnet picks up pins? (a) friction (b) gravity (c) muscular force (d) magnetic force
40. 40.💪 A cart is pulled to the right with 25 N and to the left with 15 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right

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