Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 421 · 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 50 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
2. 2.💪 Two children push a box to the right, one with 60 N and the other with 25 N. What is the net (total) force on the box, in newtons?
3. 3.💪 Which can a force NOT do? (a) change its colour (b) stop it moving (c) start it moving (d) change its shape
4. 4.💪 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?
5. 5.True or false: opening a drawer is a pull. (a) False (b) True
6. 6.Which of these is caused by muscular force? (a) an apple falls down (b) rain falls to the ground (c) a rolling ball slows (d) pedalling a cycle
7. 7.💪 A bag has a mass of 10 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
8. 8.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
9. 9.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
10. 10.💪 A box weighs 510 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
11. 11.💪 Which force is at work: a river flows downhill? (a) friction (b) magnetic force (c) muscular force (d) gravity
12. 12.💪 In a tug of war, one team pulls right with 40 N and the other pulls left with 35 N. What is the size of the net force, in newtons?
13. 13.💪 A force is a … (a) type of sound (b) kind of colour (c) push or a pull (d) unit of time
14. 14.💪 In which unit do we measure force? (a) newton (N) (b) second (s) (c) metre (m) (d) litre (L)
15. 15.💪 A cart is pulled to the right with 60 N and to the left with 50 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
16. 16.True or false: pushing a trolley is a pull. (a) True (b) False
17. 17.💪 A box weighs 80 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
18. 18.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
19. 19.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) an apple falls down (c) a thrown ball comes down (d) a compass needle turns
20. 20.Which of these is caused by magnetic force? (a) a fridge magnet sticks (b) an apple falls down (c) rubbing hands warms them (d) a thrown ball comes down
21. 21.💪 Two children push a box to the right, one with 50 N and the other with 95 N. What is the net (total) force on the box, in newtons?
22. 22.💪 A cart is pulled to the right with 70 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
23. 23.True or false: pressing a doorbell is a push. (a) False (b) True
24. 24.💪 Which force pulls everything towards the Earth? (a) gravity (b) friction (c) magnetism (d) wind
25. 25.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
26. 26.💪 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?
27. 27.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) magnetic force (c) gravity (d) friction
28. 28.True or false: kicking a football is a push. (a) True (b) False
29. 29.💪 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 right (c) to the left
30. 30.💪 In a tug of war, one team pulls left with 85 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
31. 31.True or false: pulling a cart is a pull. (a) True (b) False
32. 32.💪 In a tug of war, one team pulls left with 65 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
33. 33.💪 Two children push a box to the right, one with 35 N and the other with 35 N. What is the net (total) force on the box, in newtons?
34. 34.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
35. 35.💪 A bag has a mass of 52 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
36. 36.Which of these is caused by gravity? (a) squeezing a lemon (b) lifting a school bag (c) a magnet picks up pins (d) rain falls to the ground
37. 37.💪 A bag has a mass of 20 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
38. 38.Which of these is caused by gravity? (a) a compass needle turns (b) a thrown ball comes down (c) pedalling a cycle (d) shoes grip the floor
39. 39.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) gravity (c) friction (d) magnetic force
40. 40.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push

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