Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 412 · 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 90 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
2. 2.True or false: pulling a cart is a pull. (a) True (b) False
3. 3.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) friction (c) gravity (d) magnetic force
4. 4.💪 A box weighs 380 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
5. 5.💪 Which force is at work: pedalling a cycle? (a) friction (b) gravity (c) muscular force (d) magnetic force
6. 6.True or false: closing a drawer is a push. (a) True (b) False
7. 7.Which of these is caused by friction? (a) a magnet picks up pins (b) rubbing hands warms them (c) a compass needle turns (d) lifting a school bag
8. 8.💪 Which force pulls everything towards the Earth? (a) magnetism (b) gravity (c) wind (d) friction
9. 9.True or false: closing a drawer is a pull. (a) False (b) True
10. 10.💪 A cart is pulled to the right with 75 N and to the left with 80 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
11. 11.💪 In a tug of war, one team pulls left with 50 N and the other pulls right with 45 N. What is the size of the net force, in newtons?
12. 12.💪 A cart is pulled to the right with 65 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
13. 13.💪 In which unit do we measure force? (a) metre (m) (b) newton (N) (c) litre (L) (d) second (s)
14. 14.Which of these is caused by magnetic force? (a) a magnet picks up pins (b) brakes stop a bicycle (c) pedalling a cycle (d) rain falls to the ground
15. 15.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
16. 16.💪 A bag has a mass of 40 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
17. 17.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
18. 18.True or false: pulling up your socks is a pull. (a) False (b) True
19. 19.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
20. 20.True or false: pushing a swing is a pull. (a) True (b) False
21. 21.💪 A force is a … (a) push or a pull (b) unit of time (c) kind of colour (d) type of sound
22. 22.True or false: pulling up your socks is a push. (a) False (b) True
23. 23.💪 Which force is at work: a river flows downhill? (a) muscular force (b) magnetic force (c) gravity (d) friction
24. 24.💪 Which force is at work: squeezing a lemon? (a) magnetic force (b) friction (c) gravity (d) muscular force
25. 25.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
26. 26.💪 Which force is at work: a compass needle turns? (a) friction (b) gravity (c) magnetic force (d) muscular force
27. 27.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
28. 28.💪 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?
29. 29.💪 Which can a force NOT do? (a) change its shape (b) start it moving (c) stop it moving (d) change its colour
30. 30.💪 In a tug of war, one team pulls right with 50 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
31. 31.Which of these is caused by muscular force? (a) pedalling a cycle (b) a compass needle turns (c) shoes grip the floor (d) a rolling ball slows
32. 32.True or false: plucking a mango is a pull. (a) False (b) True
33. 33.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
34. 34.💪 A bag has a mass of 50 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
35. 35.💪 In a tug of war, one team pulls left with 50 N and the other pulls right with 40 N. What is the size of the net force, in newtons?
36. 36.💪 Which force is at work: shoes grip the floor? (a) gravity (b) muscular force (c) friction (d) magnetic force
37. 37.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) gravity (c) magnetic force (d) friction
38. 38.Which of these is caused by gravity? (a) a rolling ball slows (b) an apple falls down (c) lifting a school bag (d) brakes stop a bicycle
39. 39.💪 Two children push a box to the right, one with 40 N and the other with 80 N. What is the net (total) force on the box, in newtons?
40. 40.💪 Two children push a box to the right, one with 55 N and the other with 10 N. What is the net (total) force on the box, in newtons?

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