Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 754 · 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 friction? (a) a fridge magnet sticks (b) lifting a school bag (c) rain falls to the ground (d) brakes stop a bicycle
2. 2.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) magnetic force (c) friction (d) gravity
3. 3.💪 A box weighs 170 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
4. 4.💪 Which force pulls everything towards the Earth? (a) wind (b) friction (c) gravity (d) magnetism
5. 5.💪 A force is a … (a) kind of colour (b) type of sound (c) unit of time (d) push or a pull
6. 6.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) friction (c) gravity (d) magnetic force
7. 7.💪 In a tug of war, one team pulls left with 50 N and the other pulls right with 30 N. What is the size of the net force, in newtons?
8. 8.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
9. 9.💪 Two children push a box to the right, one with 25 N and the other with 70 N. What is the net (total) force on the box, in newtons?
10. 10.💪 Which force is at work: squeezing a lemon? (a) muscular force (b) magnetic force (c) friction (d) gravity
11. 11.Which of these is caused by muscular force? (a) a magnet picks up pins (b) rubbing hands warms them (c) an apple falls down (d) squeezing a lemon
12. 12.💪 Which force is at work: brakes stop a bicycle? (a) friction (b) gravity (c) magnetic force (d) muscular force
13. 13.💪 Which force is at work: lifting a school bag? (a) muscular force (b) gravity (c) magnetic force (d) friction
14. 14.💪 A cart is pulled to the right with 95 N and to the left with 95 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
15. 15.Which of these is caused by magnetic force? (a) a magnet picks up pins (b) a river flows downhill (c) an apple falls down (d) rain falls to the ground
16. 16.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
17. 17.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) magnetic force (c) gravity (d) muscular force
18. 18.💪 In which unit do we measure force? (a) newton (N) (b) metre (m) (c) litre (L) (d) second (s)
19. 19.Which of these is caused by gravity? (a) brakes stop a bicycle (b) a thrown ball comes down (c) a fridge magnet sticks (d) lifting a school bag
20. 20.Which of these is caused by friction? (a) a fridge magnet sticks (b) lifting a school bag (c) shoes grip the floor (d) rain falls to the ground
21. 21.True or false: pushing a swing is a push. (a) False (b) True
22. 22.💪 In a tug of war, one team pulls right with 20 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
23. 23.💪 Two children push a box to the right, one with 55 N and the other with 50 N. What is the net (total) force on the box, in newtons?
24. 24.💪 A box weighs 360 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
25. 25.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
26. 26.💪 A box weighs 90 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
27. 27.💪 In a tug of war, one team pulls left with 90 N and the other pulls right with 75 N. What is the size of the net force, in newtons?
28. 28.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
29. 29.💪 A cart is pulled to the right with 100 N and to the left with 95 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
30. 30.Which of these is caused by friction? (a) rubbing hands warms them (b) pedalling a cycle (c) a compass needle turns (d) an apple falls down
31. 31.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
32. 32.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
33. 33.True or false: pulling up your socks is a push. (a) False (b) True
34. 34.Which of these is caused by muscular force? (a) a rolling ball slows (b) lifting a school bag (c) rubbing hands warms them (d) a compass needle turns
35. 35.Which of these is caused by magnetic force? (a) a river flows downhill (b) a fridge magnet sticks (c) lifting a school bag (d) brakes stop a bicycle
36. 36.Which of these is caused by friction? (a) a fridge magnet sticks (b) squeezing a lemon (c) a rolling ball slows (d) a thrown ball comes down
37. 37.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
38. 38.💪 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?
39. 39.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
40. 40.💪 Two children push a box to the right, one with 45 N and the other with 90 N. What is the net (total) force on the box, in newtons?

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