Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 117 · 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 muscular force? (a) a fridge magnet sticks (b) brakes stop a bicycle (c) a river flows downhill (d) lifting a school bag
2. 2.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) muscular force (c) friction (d) magnetic force
3. 3.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
4. 4.Which of these is caused by friction? (a) rain falls to the ground (b) pedalling a cycle (c) rubbing hands warms them (d) an apple falls down
5. 5.💪 A bag has a mass of 34 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
6. 6.True or false: plucking a mango is a push. (a) False (b) True
7. 7.💪 A cart is pulled to the right with 40 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
8. 8.True or false: pushing a swing is a pull. (a) False (b) True
9. 9.💪 Which force is at work: squeezing a lemon? (a) friction (b) gravity (c) magnetic force (d) muscular force
10. 10.Which of these is caused by gravity? (a) an apple falls down (b) brakes stop a bicycle (c) a rolling ball slows (d) rubbing hands warms them
11. 11.💪 Which force pulls everything towards the Earth? (a) friction (b) wind (c) gravity (d) magnetism
12. 12.💪 Which force is at work: pedalling a cycle? (a) gravity (b) friction (c) magnetic force (d) muscular force
13. 13.💪 Which force is at work: a compass needle turns? (a) gravity (b) muscular force (c) magnetic force (d) friction
14. 14.💪 A bag has a mass of 17 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
15. 15.💪 In which unit do we measure force? (a) second (s) (b) litre (L) (c) newton (N) (d) metre (m)
16. 16.💪 Two children push a box to the right, one with 75 N and the other with 75 N. What is the net (total) force on the box, in newtons?
17. 17.True or false: pushing a trolley is a push. (a) True (b) False
18. 18.True or false: closing a drawer is a push. (a) True (b) False
19. 19.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
20. 20.True or false: plucking a mango is a pull. (a) False (b) True
21. 21.💪 In a tug of war, one team pulls right with 25 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
22. 22.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
23. 23.💪 In a tug of war, one team pulls right with 80 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
24. 24.💪 A bag has a mass of 27 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
25. 25.Which of these is caused by muscular force? (a) shoes grip the floor (b) a thrown ball comes down (c) pedalling a cycle (d) rain falls to the ground
26. 26.💪 In a tug of war, one team pulls left with 75 N and the other pulls right with 45 N. What is the size of the net force, in newtons?
27. 27.💪 A box weighs 390 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
28. 28.💪 Which force is at work: rain falls to the ground? (a) gravity (b) magnetic force (c) friction (d) muscular force
29. 29.💪 A cart is pulled to the right with 55 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
30. 30.💪 Two children push a box to the right, one with 35 N and the other with 50 N. What is the net (total) force on the box, in newtons?
31. 31.Which of these is caused by friction? (a) a compass needle turns (b) shoes grip the floor (c) a magnet picks up pins (d) an apple falls down
32. 32.Which of these is caused by friction? (a) lifting a school bag (b) a magnet picks up pins (c) a rolling ball slows (d) a thrown ball comes down
33. 33.True or false: a tug of war is a push. (a) False (b) True
34. 34.💪 Which can a force NOT do? (a) start it moving (b) stop it moving (c) change its shape (d) change its colour
35. 35.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
36. 36.True or false: pushing a trolley is a pull. (a) False (b) True
37. 37.💪 Which force is at work: brakes stop a bicycle? (a) friction (b) gravity (c) magnetic force (d) muscular force
38. 38.True or false: drawing up a well bucket is a pull. (a) False (b) True
39. 39.True or false: kicking a football is a push. (a) False (b) True
40. 40.Which of these is caused by magnetic force? (a) a magnet picks up pins (b) squeezing a lemon (c) a river flows downhill (d) an apple falls down

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