Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 320 · 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 push. (a) True (b) False
2. 2.💪 In a tug of war, one team pulls right with 25 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
3. 3.💪 Which force is at work: shoes grip the floor? (a) friction (b) magnetic force (c) muscular force (d) gravity
4. 4.True or false: pulling up your socks is a pull. (a) True (b) False
5. 5.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) friction (c) muscular force (d) gravity
6. 6.💪 Which force is at work: brakes stop a bicycle? (a) gravity (b) magnetic force (c) muscular force (d) friction
7. 7.Which of these is caused by muscular force? (a) pedalling a cycle (b) shoes grip the floor (c) an apple falls down (d) a thrown ball comes down
8. 8.💪 A box weighs 30 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
9. 9.Which of these is caused by muscular force? (a) squeezing a lemon (b) a thrown ball comes down (c) a compass needle turns (d) rubbing hands warms them
10. 10.Which of these is caused by magnetic force? (a) a thrown ball comes down (b) a magnet picks up pins (c) rain falls to the ground (d) squeezing a lemon
11. 11.Which of these is caused by friction? (a) rubbing hands warms them (b) rain falls to the ground (c) lifting a school bag (d) a thrown ball comes down
12. 12.💪 In a tug of war, one team pulls right with 90 N and the other pulls left with 45 N. What is the size of the net force, in newtons?
13. 13.💪 Two children push a box to the right, one with 40 N and the other with 5 N. What is the net (total) force on the box, in newtons?
14. 14.💪 A force is a … (a) push or a pull (b) unit of time (c) kind of colour (d) type of sound
15. 15.💪 Which force pulls everything towards the Earth? (a) gravity (b) wind (c) friction (d) magnetism
16. 16.💪 A cart is pulled to the right with 85 N and to the left with 70 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
17. 17.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) doubled (c) gravity (d) balanced
18. 18.True or false: pressing a doorbell is a pull. (a) True (b) False
19. 19.Which of these is caused by gravity? (a) squeezing a lemon (b) a compass needle turns (c) a river flows downhill (d) a fridge magnet sticks
20. 20.True or false: plucking a mango is a pull. (a) True (b) False
21. 21.💪 In a tug of war, one team pulls right with 20 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
22. 22.💪 A cart is pulled to the right with 20 N and to the left with 10 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
23. 23.💪 Two children push a box to the right, one with 70 N and the other with 30 N. What is the net (total) force on the box, in newtons?
24. 24.💪 Two children push a box to the right, one with 85 N and the other with 45 N. What is the net (total) force on the box, in newtons?
25. 25.True or false: drawing up a well bucket is a push. (a) False (b) True
26. 26.💪 Which force is at work: pedalling a cycle? (a) friction (b) gravity (c) magnetic force (d) muscular force
27. 27.💪 A bag has a mass of 23 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
28. 28.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
29. 29.Which of these is caused by gravity? (a) an apple falls down (b) a magnet picks up pins (c) lifting a school bag (d) a rolling ball slows
30. 30.💪 A box weighs 260 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
31. 31.💪 A box weighs 40 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
32. 32.💪 Two children push a box to the right, one with 50 N and the other with 10 N. What is the net (total) force on the box, in newtons?
33. 33.Which of these is caused by magnetic force? (a) a fridge magnet sticks (b) lifting a school bag (c) rain falls to the ground (d) a river flows downhill
34. 34.💪 A bag has a mass of 19 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
35. 35.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
36. 36.💪 Which can a force NOT do? (a) change its shape (b) start it moving (c) change its colour (d) stop it moving
37. 37.💪 Which force is at work: a compass needle turns? (a) gravity (b) magnetic force (c) muscular force (d) friction
38. 38.💪 In which unit do we measure force? (a) metre (m) (b) newton (N) (c) litre (L) (d) second (s)
39. 39.💪 Two children push a box to the right, one with 70 N and the other with 25 N. What is the net (total) force on the box, in newtons?
40. 40.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull

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