Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 465 · 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.Which of these is caused by gravity? (a) brakes stop a bicycle (b) rubbing hands warms them (c) a thrown ball comes down (d) a magnet picks up pins
2. 2.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
3. 3.True or false: pulling up your socks is a pull. (a) False (b) True
4. 4.💪 In which unit do we measure force? (a) litre (L) (b) second (s) (c) metre (m) (d) newton (N)
5. 5.💪 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?
6. 6.True or false: a tug of war is a pull. (a) False (b) True
7. 7.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
8. 8.True or false: plucking a mango is a push. (a) True (b) False
9. 9.💪 A bag has a mass of 7 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
10. 10.💪 In a tug of war, one team pulls right with 85 N and the other pulls left with 55 N. What is the size of the net force, in newtons?
11. 11.Which of these is caused by muscular force? (a) rubbing hands warms them (b) rain falls to the ground (c) pedalling a cycle (d) brakes stop a bicycle
12. 12.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
13. 13.💪 Which force is at work: brakes stop a bicycle? (a) friction (b) muscular force (c) magnetic force (d) gravity
14. 14.True or false: pulling a cart is a push. (a) False (b) True
15. 15.💪 Which force is at work: shoes grip the floor? (a) friction (b) muscular force (c) gravity (d) magnetic force
16. 16.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
17. 17.💪 A bag has a mass of 34 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
18. 18.True or false: kicking a football is a pull. (a) False (b) True
19. 19.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
20. 20.💪 Two children push a box to the right, one with 25 N and the other with 45 N. What is the net (total) force on the box, in newtons?
21. 21.💪 A force is a … (a) unit of time (b) type of sound (c) push or a pull (d) kind of colour
22. 22.True or false: hitting a cricket ball is a pull. (a) False (b) True
23. 23.💪 Which force pulls everything towards the Earth? (a) wind (b) friction (c) magnetism (d) gravity
24. 24.True or false: drawing up a well bucket is a push. (a) False (b) True
25. 25.💪 Which force is at work: a river flows downhill? (a) friction (b) gravity (c) magnetic force (d) muscular force
26. 26.True or false: pressing a doorbell is a push. (a) False (b) True
27. 27.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) magnetic force (c) muscular force (d) friction
28. 28.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) balanced (c) unbalanced (d) gravity
29. 29.Which of these is caused by friction? (a) brakes stop a bicycle (b) a thrown ball comes down (c) rain falls to the ground (d) an apple falls down
30. 30.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
31. 31.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
32. 32.True or false: plucking a mango is a pull. (a) False (b) True
33. 33.Which of these is caused by magnetic force? (a) a compass needle turns (b) an apple falls down (c) shoes grip the floor (d) a river flows downhill
34. 34.Which of these is caused by muscular force? (a) rain falls to the ground (b) squeezing a lemon (c) a fridge magnet sticks (d) brakes stop a bicycle
35. 35.Which of these is caused by friction? (a) lifting a school bag (b) a compass needle turns (c) a river flows downhill (d) a rolling ball slows
36. 36.Which of these is caused by magnetic force? (a) a magnet picks up pins (b) lifting a school bag (c) a thrown ball comes down (d) squeezing a lemon
37. 37.💪 A bag has a mass of 33 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
38. 38.💪 A cart is pulled to the right with 100 N and to the left with 100 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
39. 39.💪 A cart is pulled to the right with 40 N and to the left with 40 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
40. 40.💪 Which force is at work: rain falls to the ground? (a) friction (b) muscular force (c) magnetic force (d) gravity

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