Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 284 · 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.💪 In a tug of war, one team pulls right with 30 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
2. 2.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
3. 3.💪 Which can a force NOT do? (a) stop it moving (b) change its colour (c) change its shape (d) start it moving
4. 4.True or false: pulling a cart is a pull. (a) True (b) False
5. 5.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) balanced (c) unbalanced (d) doubled
6. 6.💪 A cart is pulled to the right with 45 N and to the left with 50 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
7. 7.True or false: kicking a football is a push. (a) False (b) True
8. 8.Which of these is caused by gravity? (a) a river flows downhill (b) brakes stop a bicycle (c) pedalling a cycle (d) rubbing hands warms them
9. 9.💪 A force is a … (a) unit of time (b) type of sound (c) push or a pull (d) kind of colour
10. 10.💪 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?
11. 11.💪 Two children push a box to the right, one with 10 N and the other with 95 N. What is the net (total) force on the box, in newtons?
12. 12.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
13. 13.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
14. 14.Which of these is caused by friction? (a) a thrown ball comes down (b) an apple falls down (c) rubbing hands warms them (d) squeezing a lemon
15. 15.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
16. 16.Which of these is caused by muscular force? (a) a compass needle turns (b) brakes stop a bicycle (c) rubbing hands warms them (d) squeezing a lemon
17. 17.Which of these is caused by magnetic force? (a) a river flows downhill (b) a compass needle turns (c) pedalling a cycle (d) a thrown ball comes down
18. 18.Which of these is caused by gravity? (a) rubbing hands warms them (b) pedalling a cycle (c) a rolling ball slows (d) rain falls to the ground
19. 19.💪 A cart is pulled to the right with 85 N and to the left with 80 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
20. 20.💪 A box weighs 150 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
21. 21.Which of these is caused by gravity? (a) squeezing a lemon (b) a fridge magnet sticks (c) rubbing hands warms them (d) an apple falls down
22. 22.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
23. 23.💪 In a tug of war, one team pulls left with 60 N and the other pulls right with 50 N. What is the size of the net force, in newtons?
24. 24.True or false: hitting a cricket ball is a push. (a) False (b) True
25. 25.💪 In a tug of war, one team pulls left with 25 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
26. 26.True or false: closing a drawer is a push. (a) False (b) True
27. 27.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) a rolling ball slows (c) pedalling a cycle (d) a magnet picks up pins
28. 28.💪 Two children push a box to the right, one with 40 N and the other with 10 N. What is the net (total) force on the box, in newtons?
29. 29.💪 Two children push a box to the right, one with 95 N and the other with 5 N. What is the net (total) force on the box, in newtons?
30. 30.Which of these is caused by gravity? (a) shoes grip the floor (b) a compass needle turns (c) a rolling ball slows (d) a thrown ball comes down
31. 31.💪 Which force is at work: a magnet picks up pins? (a) magnetic force (b) gravity (c) muscular force (d) friction
32. 32.💪 In a tug of war, one team pulls right with 50 N and the other pulls left with 45 N. What is the size of the net force, in newtons?
33. 33.💪 Which force pulls everything towards the Earth? (a) wind (b) friction (c) gravity (d) magnetism
34. 34.💪 A bag has a mass of 45 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
35. 35.💪 A bag has a mass of 55 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
36. 36.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
37. 37.True or false: drawing up a well bucket is a push. (a) True (b) False
38. 38.💪 In a tug of war, one team pulls right with 50 N and the other pulls left with 35 N. What is the size of the net force, in newtons?
39. 39.💪 Two children push a box to the right, one with 20 N and the other with 65 N. What is the net (total) force on the box, in newtons?
40. 40.💪 A cart is pulled to the right with 50 N and to the left with 65 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right

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