Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 359 · 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.True or false: pressing a doorbell is a pull. (a) False (b) True
2. 2.True or false: plucking a mango is a push. (a) True (b) False
3. 3.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
4. 4.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
5. 5.💪 Which can a force NOT do? (a) change its colour (b) stop it moving (c) start it moving (d) change its shape
6. 6.💪 A cart is pulled to the right with 85 N and to the left with 85 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
7. 7.Which of these is caused by muscular force? (a) a river flows downhill (b) lifting a school bag (c) a rolling ball slows (d) a thrown ball comes down
8. 8.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
9. 9.True or false: pushing a trolley is a pull. (a) True (b) False
10. 10.💪 A cart is pulled to the right with 70 N and to the left with 55 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
11. 11.💪 A bag has a mass of 49 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
12. 12.Which of these is caused by gravity? (a) squeezing a lemon (b) lifting a school bag (c) an apple falls down (d) a rolling ball slows
13. 13.Which of these is caused by muscular force? (a) a magnet picks up pins (b) pedalling a cycle (c) rubbing hands warms them (d) rain falls to the ground
14. 14.💪 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?
15. 15.💪 A force is a … (a) unit of time (b) type of sound (c) kind of colour (d) push or a pull
16. 16.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
17. 17.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
18. 18.💪 Two children push a box to the right, one with 60 N and the other with 65 N. What is the net (total) force on the box, in newtons?
19. 19.💪 A box weighs 90 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
20. 20.💪 A box weighs 70 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
21. 21.True or false: opening a drawer is a pull. (a) False (b) True
22. 22.💪 A bag has a mass of 13 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
23. 23.💪 A cart is pulled to the right with 95 N and to the left with 80 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
24. 24.💪 In a tug of war, one team pulls right with 65 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
25. 25.💪 In which unit do we measure force? (a) metre (m) (b) litre (L) (c) second (s) (d) newton (N)
26. 26.💪 Which force pulls everything towards the Earth? (a) friction (b) magnetism (c) gravity (d) wind
27. 27.True or false: kicking a football is a pull. (a) True (b) False
28. 28.💪 A box weighs 240 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
29. 29.💪 A box weighs 510 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
30. 30.💪 Which force is at work: lifting a school bag? (a) gravity (b) friction (c) magnetic force (d) muscular force
31. 31.💪 Two children push a box to the right, one with 5 N and the other with 100 N. What is the net (total) force on the box, in newtons?
32. 32.True or false: pushing a trolley is a push. (a) True (b) False
33. 33.Which of these is caused by gravity? (a) a magnet picks up pins (b) a rolling ball slows (c) a fridge magnet sticks (d) rain falls to the ground
34. 34.💪 Two children push a box to the right, one with 30 N and the other with 30 N. What is the net (total) force on the box, in newtons?
35. 35.Which of these is caused by friction? (a) rubbing hands warms them (b) lifting a school bag (c) a compass needle turns (d) a thrown ball comes down
36. 36.True or false: pulling a cart is a push. (a) False (b) True
37. 37.Which of these is caused by friction? (a) pedalling a cycle (b) a thrown ball comes down (c) a fridge magnet sticks (d) brakes stop a bicycle
38. 38.Which of these is caused by friction? (a) a thrown ball comes down (b) a magnet picks up pins (c) an apple falls down (d) a rolling ball slows
39. 39.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) magnetic force (c) friction (d) gravity
40. 40.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) friction (c) gravity (d) muscular force

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