Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 300 · 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.💪 In a tug of war, one team pulls right with 65 N and the other pulls left with 50 N. What is the size of the net force, in newtons?
2. 2.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
3. 3.Which of these is caused by gravity? (a) a rolling ball slows (b) lifting a school bag (c) shoes grip the floor (d) rain falls to the ground
4. 4.💪 In a tug of war, one team pulls right with 65 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
5. 5.💪 Two children push a box to the right, one with 10 N and the other with 20 N. What is the net (total) force on the box, in newtons?
6. 6.💪 In a tug of war, one team pulls left with 100 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
7. 7.💪 Which force is at work: lifting a school bag? (a) muscular force (b) gravity (c) magnetic force (d) friction
8. 8.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
9. 9.💪 A box weighs 160 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
10. 10.💪 A cart is pulled to the right with 75 N and to the left with 60 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 28 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
12. 12.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) gravity (c) magnetic force (d) muscular force
13. 13.💪 Which force is at work: a magnet picks up pins? (a) muscular force (b) friction (c) magnetic force (d) gravity
14. 14.💪 In which unit do we measure force? (a) litre (L) (b) newton (N) (c) metre (m) (d) second (s)
15. 15.💪 In a tug of war, one team pulls right with 15 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
16. 16.True or false: pushing a trolley is a pull. (a) False (b) True
17. 17.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
18. 18.True or false: opening a drawer is a pull. (a) False (b) True
19. 19.💪 Which force is at work: pedalling a cycle? (a) friction (b) muscular force (c) gravity (d) magnetic force
20. 20.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) muscular force (c) gravity (d) friction
21. 21.💪 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?
22. 22.Which of these is caused by magnetic force? (a) a compass needle turns (b) rubbing hands warms them (c) a thrown ball comes down (d) shoes grip the floor
23. 23.Which of these is caused by friction? (a) an apple falls down (b) a rolling ball slows (c) lifting a school bag (d) pedalling a cycle
24. 24.Which of these is caused by magnetic force? (a) a river flows downhill (b) a magnet picks up pins (c) shoes grip the floor (d) an apple falls down
25. 25.💪 A force is a … (a) push or a pull (b) kind of colour (c) unit of time (d) type of sound
26. 26.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
27. 27.💪 A cart is pulled to the right with 35 N and to the left with 30 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
28. 28.True or false: drawing up a well bucket is a pull. (a) False (b) True
29. 29.💪 A box weighs 420 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
30. 30.True or false: kicking a football is a push. (a) False (b) True
31. 31.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
32. 32.💪 A cart is pulled to the right with 55 N and to the left with 40 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
33. 33.True or false: a tug of war is a push. (a) False (b) True
34. 34.💪 A bag has a mass of 3 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
35. 35.💪 Which can a force NOT do? (a) start it moving (b) stop it moving (c) change its colour (d) change its shape
36. 36.💪 A bag has a mass of 54 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
37. 37.Which of these is caused by friction? (a) a magnet picks up pins (b) pedalling a cycle (c) lifting a school bag (d) shoes grip the floor
38. 38.💪 In a tug of war, one team pulls right with 95 N and the other pulls left with 75 N. What is the size of the net force, in newtons?
39. 39.Which of these is caused by muscular force? (a) a river flows downhill (b) an apple falls down (c) brakes stop a bicycle (d) squeezing a lemon
40. 40.💪 Which force is at work: a thrown ball comes down? (a) friction (b) gravity (c) muscular force (d) magnetic force

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