Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 719 · 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 river flows downhill (b) a thrown ball comes down (c) lifting a school bag (d) a fridge magnet sticks
2. 2.True or false: a tug of war is a push. (a) True (b) False
3. 3.Which of these is caused by gravity? (a) a fridge magnet sticks (b) squeezing a lemon (c) a magnet picks up pins (d) a river flows downhill
4. 4.💪 A bag has a mass of 17 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
5. 5.💪 Which can a force NOT do? (a) start it moving (b) change its colour (c) change its shape (d) stop it moving
6. 6.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
7. 7.💪 A box weighs 390 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
8. 8.Which of these is caused by magnetic force? (a) rain falls to the ground (b) a rolling ball slows (c) brakes stop a bicycle (d) a magnet picks up pins
9. 9.💪 A cart is pulled to the right with 90 N and to the left with 75 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
10. 10.True or false: plucking a mango is a push. (a) True (b) False
11. 11.💪 Which force is at work: rubbing hands warms them? (a) magnetic force (b) muscular force (c) gravity (d) friction
12. 12.💪 Which force is at work: squeezing a lemon? (a) gravity (b) friction (c) muscular force (d) magnetic force
13. 13.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
14. 14.💪 In a tug of war, one team pulls right with 20 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
15. 15.Which of these is caused by magnetic force? (a) squeezing a lemon (b) rain falls to the ground (c) a thrown ball comes down (d) a compass needle turns
16. 16.True or false: plucking a mango is a pull. (a) True (b) False
17. 17.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
18. 18.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
19. 19.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
20. 20.True or false: kicking a football is a push. (a) False (b) True
21. 21.💪 In a tug of war, one team pulls left with 95 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
22. 22.💪 A cart is pulled to the right with 50 N and to the left with 55 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
23. 23.Which of these is caused by gravity? (a) an apple falls down (b) brakes stop a bicycle (c) a rolling ball slows (d) a fridge magnet sticks
24. 24.💪 A box weighs 30 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
25. 25.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) friction (c) gravity (d) muscular force
26. 26.💪 In a tug of war, one team pulls left with 40 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
27. 27.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) friction (c) muscular force (d) gravity
28. 28.💪 A cart is pulled to the right with 50 N and to the left with 60 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
29. 29.Which of these is caused by friction? (a) a thrown ball comes down (b) a magnet picks up pins (c) shoes grip the floor (d) lifting a school bag
30. 30.💪 In a tug of war, one team pulls left with 65 N and the other pulls right with 50 N. What is the size of the net force, in newtons?
31. 31.True or false: drawing up a well bucket is a push. (a) True (b) False
32. 32.Which of these is caused by gravity? (a) a thrown ball comes down (b) shoes grip the floor (c) pedalling a cycle (d) a fridge magnet sticks
33. 33.💪 A box weighs 530 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
34. 34.True or false: pulling up your socks is a pull. (a) False (b) True
35. 35.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
36. 36.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
37. 37.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
38. 38.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) gravity (c) unbalanced (d) balanced
39. 39.💪 A cart is pulled to the right with 60 N and to the left with 75 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
40. 40.💪 Which force is at work: an apple falls down? (a) gravity (b) friction (c) magnetic force (d) muscular force

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