Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 740 · 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 left with 90 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
2. 2.💪 A bag has a mass of 8 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
3. 3.💪 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) to the left (b) no net force (c) to the right
4. 4.💪 In a tug of war, one team pulls right with 25 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
5. 5.💪 In which unit do we measure force? (a) second (s) (b) newton (N) (c) metre (m) (d) litre (L)
6. 6.💪 A bag has a mass of 29 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
7. 7.💪 A box weighs 420 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
8. 8.💪 Which force pulls everything towards the Earth? (a) gravity (b) wind (c) magnetism (d) friction
9. 9.💪 A cart is pulled to the right with 60 N and to the left with 60 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
10. 10.💪 A bag has a mass of 40 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
11. 11.💪 Two children push a box to the right, one with 100 N and the other with 20 N. What is the net (total) force on the box, in newtons?
12. 12.💪 A cart is pulled to the right with 25 N and to the left with 25 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
13. 13.💪 A force is a … (a) kind of colour (b) push or a pull (c) type of sound (d) unit of time
14. 14.💪 A box weighs 190 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
15. 15.True or false: pushing a trolley is a pull. (a) True (b) False
16. 16.True or false: pushing a trolley is a push. (a) False (b) True
17. 17.💪 A cart is pulled to the right with 40 N and to the left with 40 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
18. 18.💪 Which force is at work: pedalling a cycle? (a) friction (b) gravity (c) muscular force (d) magnetic force
19. 19.💪 A box weighs 90 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
20. 20.💪 Which force is at work: a fridge magnet sticks? (a) magnetic force (b) gravity (c) muscular force (d) friction
21. 21.💪 Which force is at work: brakes stop a bicycle? (a) gravity (b) friction (c) muscular force (d) magnetic force
22. 22.💪 Which force is at work: an apple falls down? (a) muscular force (b) magnetic force (c) friction (d) gravity
23. 23.💪 Which can a force NOT do? (a) stop it moving (b) change its shape (c) change its colour (d) start it moving
24. 24.💪 Which force is at work: rain falls to the ground? (a) friction (b) gravity (c) muscular force (d) magnetic force
25. 25.💪 Two children push a box to the right, one with 10 N and the other with 10 N. What is the net (total) force on the box, in newtons?
26. 26.Which of these is caused by magnetic force? (a) lifting a school bag (b) a river flows downhill (c) a compass needle turns (d) rain falls to the ground
27. 27.💪 A cart is pulled to the right with 100 N and to the left with 100 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
28. 28.💪 Two children push a box to the right, one with 40 N and the other with 30 N. What is the net (total) force on the box, in newtons?
29. 29.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) unbalanced (c) doubled (d) gravity
30. 30.Which of these is caused by magnetic force? (a) lifting a school bag (b) brakes stop a bicycle (c) squeezing a lemon (d) a magnet picks up pins
31. 31.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) friction (c) gravity (d) muscular force
32. 32.💪 A cart is pulled to the right with 100 N and to the left with 85 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
33. 33.True or false: hitting a cricket ball is a push. (a) True (b) False
34. 34.💪 A cart is pulled to the right with 50 N and to the left with 60 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
35. 35.True or false: drawing up a well bucket is a push. (a) True (b) False
36. 36.Which of these is caused by gravity? (a) lifting a school bag (b) a fridge magnet sticks (c) a thrown ball comes down (d) a rolling ball slows
37. 37.True or false: pulling a cart is a push. (a) True (b) False
38. 38.💪 A cart is pulled to the right with 100 N and to the left with 95 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
39. 39.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
40. 40.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push

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