Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 766 · 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.Which of these is caused by muscular force? (a) rain falls to the ground (b) a thrown ball comes down (c) a fridge magnet sticks (d) lifting a school bag
2. 2.💪 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?
3. 3.💪 A cart is pulled to the right with 90 N and to the left with 105 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
4. 4.💪 Which force is at work: a river flows downhill? (a) friction (b) gravity (c) muscular force (d) magnetic force
5. 5.True or false: drawing up a well bucket is a pull. (a) False (b) True
6. 6.💪 A box weighs 60 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
7. 7.💪 Which force is at work: a compass needle turns? (a) gravity (b) magnetic force (c) friction (d) muscular force
8. 8.💪 In a tug of war, one team pulls left with 80 N and the other pulls right with 75 N. What is the size of the net force, in newtons?
9. 9.True or false: closing a drawer is a push. (a) False (b) True
10. 10.💪 In a tug of war, one team pulls left with 70 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
11. 11.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) a fridge magnet sticks (c) rubbing hands warms them (d) shoes grip the floor
12. 12.💪 Which force is at work: a rolling ball slows? (a) friction (b) muscular force (c) magnetic force (d) gravity
13. 13.💪 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 left (c) to the right
14. 14.💪 Two children push a box to the right, one with 15 N and the other with 30 N. What is the net (total) force on the box, in newtons?
15. 15.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
16. 16.True or false: opening a drawer is a pull. (a) True (b) False
17. 17.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
18. 18.💪 In a tug of war, one team pulls right with 25 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
19. 19.Which of these is caused by gravity? (a) pedalling a cycle (b) shoes grip the floor (c) a rolling ball slows (d) a river flows downhill
20. 20.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
21. 21.💪 A force is a … (a) type of sound (b) unit of time (c) push or a pull (d) kind of colour
22. 22.💪 Which force is at work: a thrown ball comes down? (a) friction (b) muscular force (c) gravity (d) magnetic force
23. 23.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) doubled (c) unbalanced (d) balanced
24. 24.Which of these is caused by gravity? (a) a compass needle turns (b) an apple falls down (c) lifting a school bag (d) brakes stop a bicycle
25. 25.True or false: pulling a cart is a pull. (a) False (b) True
26. 26.💪 In which unit do we measure force? (a) litre (L) (b) newton (N) (c) second (s) (d) metre (m)
27. 27.💪 Two children push a box to the right, one with 80 N and the other with 5 N. What is the net (total) force on the box, in newtons?
28. 28.💪 In a tug of war, one team pulls left with 25 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
29. 29.True or false: pulling up your socks is a pull. (a) True (b) False
30. 30.Which of these is caused by gravity? (a) a thrown ball comes down (b) lifting a school bag (c) squeezing a lemon (d) brakes stop a bicycle
31. 31.💪 Which can a force NOT do? (a) start it moving (b) stop it moving (c) change its colour (d) change its shape
32. 32.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
33. 33.💪 A bag has a mass of 54 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
34. 34.💪 Two children push a box to the right, one with 100 N and the other with 40 N. What is the net (total) force on the box, in newtons?
35. 35.💪 A bag has a mass of 46 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
36. 36.Which of these is caused by muscular force? (a) pedalling a cycle (b) a rolling ball slows (c) shoes grip the floor (d) rain falls to the ground
37. 37.💪 A cart is pulled to the right with 70 N and to the left with 65 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
38. 38.Which of these is caused by gravity? (a) brakes stop a bicycle (b) a fridge magnet sticks (c) rain falls to the ground (d) squeezing a lemon
39. 39.💪 Which force pulls everything towards the Earth? (a) friction (b) magnetism (c) wind (d) gravity
40. 40.💪 Two children push a box to the right, one with 30 N and the other with 95 N. What is the net (total) force on the box, in newtons?

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