Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 354 · 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.💪 A force is a … (a) push or a pull (b) type of sound (c) unit of time (d) kind of colour
2. 2.💪 A bag has a mass of 39 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
3. 3.True or false: plucking a mango is a push. (a) False (b) True
4. 4.💪 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?
5. 5.True or false: drawing up a well bucket is a pull. (a) True (b) False
6. 6.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
7. 7.Which of these is caused by gravity? (a) rubbing hands warms them (b) a magnet picks up pins (c) a fridge magnet sticks (d) a thrown ball comes down
8. 8.💪 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
9. 9.True or false: kicking a football is a pull. (a) False (b) True
10. 10.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
11. 11.True or false: hitting a cricket ball is a push. (a) False (b) True
12. 12.💪 A cart is pulled to the right with 90 N and to the left with 85 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
13. 13.Which of these is caused by muscular force? (a) rain falls to the ground (b) a compass needle turns (c) a river flows downhill (d) lifting a school bag
14. 14.💪 Which force is at work: rain falls to the ground? (a) gravity (b) magnetic force (c) muscular force (d) friction
15. 15.Which of these is caused by friction? (a) brakes stop a bicycle (b) an apple falls down (c) pedalling a cycle (d) a compass needle turns
16. 16.Which of these is caused by friction? (a) shoes grip the floor (b) pedalling a cycle (c) rain falls to the ground (d) a fridge magnet sticks
17. 17.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
18. 18.💪 Two children push a box to the right, one with 100 N and the other with 10 N. What is the net (total) force on the box, in newtons?
19. 19.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
20. 20.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
21. 21.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
22. 22.💪 In a tug of war, one team pulls right with 55 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
23. 23.💪 In a tug of war, one team pulls right with 15 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
24. 24.💪 In a tug of war, one team pulls right with 80 N and the other pulls left with 45 N. What is the size of the net force, in newtons?
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) to the right (b) no net force (c) to the left
26. 26.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) doubled (c) gravity (d) unbalanced
27. 27.Which of these is caused by gravity? (a) rubbing hands warms them (b) shoes grip the floor (c) an apple falls down (d) a compass needle turns
28. 28.Which of these is caused by magnetic force? (a) a compass needle turns (b) an apple falls down (c) a river flows downhill (d) lifting a school bag
29. 29.Which of these is caused by gravity? (a) rubbing hands warms them (b) brakes stop a bicycle (c) a rolling ball slows (d) rain falls to the ground
30. 30.💪 Two children push a box to the right, one with 5 N and the other with 95 N. What is the net (total) force on the box, in newtons?
31. 31.Which of these is caused by friction? (a) pedalling a cycle (b) squeezing a lemon (c) a thrown ball comes down (d) rubbing hands warms them
32. 32.💪 Which can a force NOT do? (a) start it moving (b) stop it moving (c) change its shape (d) change its colour
33. 33.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
34. 34.💪 In a tug of war, one team pulls left with 65 N and the other pulls right with 30 N. What is the size of the net force, in newtons?
35. 35.True or false: pressing a doorbell is a pull. (a) True (b) False
36. 36.💪 A cart is pulled to the right with 20 N and to the left with 35 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
37. 37.💪 Which force is at work: squeezing a lemon? (a) gravity (b) friction (c) muscular force (d) magnetic force
38. 38.True or false: plucking a mango is a pull. (a) False (b) True
39. 39.💪 Which force is at work: a compass needle turns? (a) friction (b) gravity (c) magnetic force (d) muscular force
40. 40.💪 Two children push a box to the right, one with 35 N and the other with 65 N. What is the net (total) force on the box, in newtons?

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