Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 961 · 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 40 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
2. 2.💪 In a tug of war, one team pulls right with 75 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
3. 3.💪 A bag has a mass of 17 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
4. 4.True or false: closing a drawer is a pull. (a) False (b) True
5. 5.Which of these is caused by gravity? (a) a rolling ball slows (b) rain falls to the ground (c) a fridge magnet sticks (d) shoes grip the floor
6. 6.True or false: pulling up your socks is a pull. (a) False (b) True
7. 7.💪 In a tug of war, one team pulls right with 70 N and the other pulls left with 30 N. What is the size of the net force, in newtons?
8. 8.Which of these is caused by magnetic force? (a) lifting a school bag (b) rain falls to the ground (c) a magnet picks up pins (d) a rolling ball slows
9. 9.💪 A cart is pulled to the right with 55 N and to the left with 50 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
10. 10.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
11. 11.💪 A cart is pulled to the right with 40 N and to the left with 30 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
12. 12.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
13. 13.💪 Which force is at work: squeezing a lemon? (a) magnetic force (b) muscular force (c) gravity (d) friction
14. 14.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
15. 15.💪 A box weighs 170 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
16. 16.True or false: pressing a doorbell is a push. (a) False (b) True
17. 17.💪 Which force is at work: a river flows downhill? (a) friction (b) magnetic force (c) gravity (d) muscular force
18. 18.💪 Which force is at work: an apple falls down? (a) friction (b) magnetic force (c) gravity (d) muscular force
19. 19.💪 Two children push a box to the right, one with 100 N and the other with 90 N. What is the net (total) force on the box, in newtons?
20. 20.Which of these is caused by friction? (a) an apple falls down (b) a magnet picks up pins (c) brakes stop a bicycle (d) a river flows downhill
21. 21.💪 A box weighs 150 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
22. 22.💪 Which force is at work: brakes stop a bicycle? (a) gravity (b) magnetic force (c) friction (d) muscular force
23. 23.Which of these is caused by friction? (a) a thrown ball comes down (b) a rolling ball slows (c) a river flows downhill (d) lifting a school bag
24. 24.Which of these is caused by magnetic force? (a) an apple falls down (b) rubbing hands warms them (c) a rolling ball slows (d) a compass needle turns
25. 25.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
26. 26.💪 Which force pulls everything towards the Earth? (a) magnetism (b) wind (c) gravity (d) friction
27. 27.True or false: closing a drawer is a push. (a) False (b) True
28. 28.Which of these is caused by friction? (a) an apple falls down (b) squeezing a lemon (c) a thrown ball comes down (d) shoes grip the floor
29. 29.💪 Two children push a box to the right, one with 10 N and the other with 75 N. What is the net (total) force on the box, in newtons?
30. 30.💪 A force is a … (a) push or a pull (b) unit of time (c) kind of colour (d) type of sound
31. 31.Which of these is caused by gravity? (a) pedalling a cycle (b) a river flows downhill (c) squeezing a lemon (d) brakes stop a bicycle
32. 32.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
33. 33.True or false: pushing a trolley is a pull. (a) False (b) True
34. 34.💪 A cart is pulled to the right with 75 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
35. 35.💪 In which unit do we measure force? (a) newton (N) (b) litre (L) (c) second (s) (d) metre (m)
36. 36.💪 Which force is at work: rubbing hands warms them? (a) muscular force (b) gravity (c) magnetic force (d) friction
37. 37.Which of these is caused by gravity? (a) squeezing a lemon (b) shoes grip the floor (c) an apple falls down (d) rubbing hands warms them
38. 38.True or false: plucking a mango is a pull. (a) False (b) True
39. 39.💪 Which can a force NOT do? (a) change its colour (b) change its shape (c) stop it moving (d) start it moving
40. 40.💪 A bag has a mass of 28 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?

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