Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 72 · 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 box weighs 430 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
2. 2.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
3. 3.💪 Two children push a box to the right, one with 70 N and the other with 25 N. What is the net (total) force on the box, in newtons?
4. 4.💪 In a tug of war, one team pulls left with 70 N and the other pulls right with 40 N. What is the size of the net force, in newtons?
5. 5.💪 A cart is pulled to the right with 20 N and to the left with 25 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
6. 6.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
7. 7.💪 Which can a force NOT do? (a) stop it moving (b) change its shape (c) change its colour (d) start it moving
8. 8.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
9. 9.💪 A bag has a mass of 50 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
10. 10.💪 Which force is at work: rubbing hands warms them? (a) magnetic force (b) muscular force (c) friction (d) gravity
11. 11.Which of these is caused by friction? (a) a magnet picks up pins (b) an apple falls down (c) rain falls to the ground (d) shoes grip the floor
12. 12.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
13. 13.💪 Which force is at work: lifting a school bag? (a) gravity (b) muscular force (c) friction (d) magnetic force
14. 14.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
15. 15.💪 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?
16. 16.True or false: pulling a cart is a pull. (a) False (b) True
17. 17.💪 A bag has a mass of 47 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
18. 18.💪 A cart is pulled to the right with 75 N and to the left with 65 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
19. 19.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) gravity (c) doubled (d) unbalanced
20. 20.💪 A bag has a mass of 36 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
21. 21.💪 Two children push a box to the right, one with 90 N and the other with 80 N. What is the net (total) force on the box, in newtons?
22. 22.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
23. 23.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) gravity (c) magnetic force (d) friction
24. 24.💪 Which force is at work: a compass needle turns? (a) muscular force (b) magnetic force (c) gravity (d) friction
25. 25.True or false: drawing up a well bucket is a push. (a) True (b) False
26. 26.💪 A force is a … (a) kind of colour (b) unit of time (c) push or a pull (d) type of sound
27. 27.💪 A cart is pulled to the right with 75 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
28. 28.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) friction (c) muscular force (d) gravity
29. 29.💪 In which unit do we measure force? (a) newton (N) (b) metre (m) (c) second (s) (d) litre (L)
30. 30.True or false: pulling a cart is a push. (a) True (b) False
31. 31.True or false: closing a drawer is a pull. (a) True (b) False
32. 32.True or false: closing a drawer is a push. (a) True (b) False
33. 33.💪 Two children push a box to the right, one with 15 N and the other with 90 N. What is the net (total) force on the box, in newtons?
34. 34.💪 Two children push a box to the right, one with 45 N and the other with 65 N. What is the net (total) force on the box, in newtons?
35. 35.Which of these is caused by magnetic force? (a) a rolling ball slows (b) an apple falls down (c) squeezing a lemon (d) a magnet picks up pins
36. 36.💪 Two children push a box to the right, one with 10 N and the other with 5 N. What is the net (total) force on the box, in newtons?
37. 37.💪 A bag has a mass of 52 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
38. 38.💪 In a tug of war, one team pulls left with 15 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
39. 39.Which of these is caused by magnetic force? (a) a fridge magnet sticks (b) a thrown ball comes down (c) brakes stop a bicycle (d) lifting a school bag
40. 40.True or false: pushing a swing is a push. (a) True (b) False

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