Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 811 · 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 bag has a mass of 52 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
2. 2.💪 In a tug of war, one team pulls right with 50 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
3. 3.💪 A bag has a mass of 19 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
4. 4.True or false: pushing a swing is a pull. (a) True (b) False
5. 5.True or false: opening a drawer is a push. (a) False (b) True
6. 6.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
7. 7.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) doubled (c) balanced (d) gravity
8. 8.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
9. 9.💪 A bag has a mass of 48 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
10. 10.💪 A cart is pulled to the right with 65 N and to the left with 70 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
11. 11.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) magnetic force (c) muscular force (d) friction
12. 12.True or false: drawing up a well bucket is a pull. (a) False (b) True
13. 13.Which of these is caused by magnetic force? (a) rubbing hands warms them (b) a river flows downhill (c) a magnet picks up pins (d) lifting a school bag
14. 14.💪 Two children push a box to the right, one with 25 N and the other with 20 N. What is the net (total) force on the box, in newtons?
15. 15.💪 Two children push a box to the right, one with 100 N and the other with 70 N. What is the net (total) force on the box, in newtons?
16. 16.💪 In a tug of war, one team pulls left with 10 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
17. 17.Which of these is caused by friction? (a) lifting a school bag (b) a thrown ball comes down (c) a rolling ball slows (d) a magnet picks up pins
18. 18.True or false: pulling a cart is a pull. (a) False (b) True
19. 19.💪 A bag has a mass of 14 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
20. 20.True or false: closing a drawer is a pull. (a) True (b) False
21. 21.True or false: pulling a cart is a push. (a) True (b) False
22. 22.True or false: closing a drawer is a push. (a) True (b) False
23. 23.💪 In a tug of war, one team pulls right with 90 N and the other pulls left with 45 N. What is the size of the net force, in newtons?
24. 24.💪 A force is a … (a) kind of colour (b) unit of time (c) push or a pull (d) type of sound
25. 25.💪 A cart is pulled to the right with 25 N and to the left with 35 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
26. 26.True or false: kicking a football is a pull. (a) True (b) False
27. 27.Which of these is caused by friction? (a) rain falls to the ground (b) lifting a school bag (c) a thrown ball comes down (d) brakes stop a bicycle
28. 28.Which of these is caused by gravity? (a) brakes stop a bicycle (b) shoes grip the floor (c) rubbing hands warms them (d) an apple falls down
29. 29.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
30. 30.💪 Two children push a box to the right, one with 30 N and the other with 45 N. What is the net (total) force on the box, in newtons?
31. 31.Which of these is caused by magnetic force? (a) a rolling ball slows (b) rubbing hands warms them (c) a fridge magnet sticks (d) squeezing a lemon
32. 32.💪 Two children push a box to the right, one with 15 N and the other with 55 N. What is the net (total) force on the box, in newtons?
33. 33.Which of these is caused by gravity? (a) rain falls to the ground (b) brakes stop a bicycle (c) a fridge magnet sticks (d) squeezing a lemon
34. 34.💪 A box weighs 490 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
35. 35.True or false: pulling up your socks is a pull. (a) True (b) False
36. 36.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
37. 37.💪 A cart is pulled to the right with 20 N and to the left with 30 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
38. 38.True or false: hitting a cricket ball is a push. (a) False (b) True
39. 39.💪 Two children push a box to the right, one with 30 N and the other with 65 N. What is the net (total) force on the box, in newtons?
40. 40.💪 Which can a force NOT do? (a) change its shape (b) start it moving (c) stop it moving (d) change its colour

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