Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 762 · 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 force is at work: a river flows downhill? (a) muscular force (b) magnetic force (c) gravity (d) friction
2. 2.True or false: pulling a cart is a pull. (a) True (b) False
3. 3.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) friction (c) muscular force (d) magnetic force
4. 4.💪 Which force pulls everything towards the Earth? (a) wind (b) magnetism (c) gravity (d) friction
5. 5.Which of these is caused by gravity? (a) pedalling a cycle (b) squeezing a lemon (c) a thrown ball comes down (d) a rolling ball slows
6. 6.💪 Which force is at work: a rolling ball slows? (a) gravity (b) muscular force (c) friction (d) magnetic force
7. 7.Which of these is caused by friction? (a) a fridge magnet sticks (b) brakes stop a bicycle (c) an apple falls down (d) a thrown ball comes down
8. 8.Which of these is caused by friction? (a) squeezing a lemon (b) a magnet picks up pins (c) shoes grip the floor (d) a river flows downhill
9. 9.True or false: plucking a mango is a push. (a) False (b) True
10. 10.💪 Which force is at work: squeezing a lemon? (a) muscular force (b) magnetic force (c) gravity (d) friction
11. 11.💪 Two children push a box to the right, one with 50 N and the other with 85 N. What is the net (total) force on the box, in newtons?
12. 12.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
13. 13.💪 Which force is at work: a compass needle turns? (a) muscular force (b) magnetic force (c) gravity (d) friction
14. 14.True or false: a tug of war is a pull. (a) False (b) True
15. 15.Which of these is caused by muscular force? (a) shoes grip the floor (b) lifting a school bag (c) rubbing hands warms them (d) a compass needle turns
16. 16.💪 In which unit do we measure force? (a) metre (m) (b) newton (N) (c) litre (L) (d) second (s)
17. 17.True or false: drawing up a well bucket is a pull. (a) True (b) False
18. 18.💪 Which can a force NOT do? (a) stop it moving (b) change its colour (c) change its shape (d) start it moving
19. 19.💪 A bag has a mass of 15 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
20. 20.Which of these is caused by gravity? (a) brakes stop a bicycle (b) a river flows downhill (c) a compass needle turns (d) shoes grip the floor
21. 21.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) gravity (c) doubled (d) balanced
22. 22.💪 A box weighs 540 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
23. 23.💪 A bag has a mass of 7 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
24. 24.Which of these is caused by friction? (a) a fridge magnet sticks (b) an apple falls down (c) a rolling ball slows (d) a compass needle turns
25. 25.True or false: pushing a swing is a pull. (a) False (b) True
26. 26.True or false: pressing a doorbell is a push. (a) False (b) True
27. 27.💪 A cart is pulled to the right with 40 N and to the left with 55 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
28. 28.💪 A box weighs 90 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
29. 29.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
30. 30.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
31. 31.Which of these is caused by muscular force? (a) shoes grip the floor (b) rain falls to the ground (c) a compass needle turns (d) squeezing a lemon
32. 32.💪 In a tug of war, one team pulls right with 35 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
33. 33.💪 Two children push a box to the right, one with 100 N and the other with 75 N. What is the net (total) force on the box, in newtons?
34. 34.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
35. 35.💪 Two children push a box to the right, one with 65 N and the other with 65 N. What is the net (total) force on the box, in newtons?
36. 36.💪 In a tug of war, one team pulls left with 60 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
37. 37.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
38. 38.💪 Which force is at work: lifting a school bag? (a) muscular force (b) gravity (c) friction (d) magnetic force
39. 39.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
40. 40.💪 Is a tug of war a push or a pull? (a) a pull (b) a push

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