Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 832 · 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 gravity? (a) an apple falls down (b) squeezing a lemon (c) a fridge magnet sticks (d) a compass needle turns
2. 2.Which of these is caused by friction? (a) pedalling a cycle (b) shoes grip the floor (c) a thrown ball comes down (d) lifting a school bag
3. 3.True or false: closing a drawer is a push. (a) True (b) False
4. 4.💪 A cart is pulled to the right with 20 N and to the left with 5 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
5. 5.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
6. 6.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
7. 7.💪 A cart is pulled to the right with 95 N and to the left with 95 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
8. 8.💪 A force is a … (a) push or a pull (b) unit of time (c) type of sound (d) kind of colour
9. 9.Which of these is caused by friction? (a) a river flows downhill (b) a thrown ball comes down (c) pedalling a cycle (d) a rolling ball slows
10. 10.💪 Two children push a box to the right, one with 35 N and the other with 45 N. What is the net (total) force on the box, in newtons?
11. 11.💪 In a tug of war, one team pulls right with 60 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
12. 12.💪 In which unit do we measure force? (a) metre (m) (b) newton (N) (c) litre (L) (d) second (s)
13. 13.True or false: pulling up your socks is a pull. (a) True (b) False
14. 14.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) unbalanced (c) doubled (d) balanced
15. 15.True or false: plucking a mango is a pull. (a) True (b) False
16. 16.Which of these is caused by magnetic force? (a) rubbing hands warms them (b) brakes stop a bicycle (c) a compass needle turns (d) rain falls to the ground
17. 17.💪 A box weighs 320 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
18. 18.💪 In a tug of war, one team pulls left with 90 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
19. 19.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) gravity (c) friction (d) muscular force
20. 20.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
21. 21.💪 Which force is at work: lifting a school bag? (a) muscular force (b) magnetic force (c) gravity (d) friction
22. 22.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
23. 23.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) muscular force (c) magnetic force (d) friction
24. 24.💪 Two children push a box to the right, one with 80 N and the other with 65 N. What is the net (total) force on the box, in newtons?
25. 25.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
26. 26.💪 In a tug of war, one team pulls right with 90 N and the other pulls left with 70 N. What is the size of the net force, in newtons?
27. 27.💪 A bag has a mass of 18 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
28. 28.💪 Two children push a box to the right, one with 80 N and the other with 30 N. What is the net (total) force on the box, in newtons?
29. 29.💪 In a tug of war, one team pulls right with 55 N and the other pulls left with 45 N. What is the size of the net force, in newtons?
30. 30.💪 In a tug of war, one team pulls left with 50 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
31. 31.💪 Which force is at work: a magnet picks up pins? (a) gravity (b) friction (c) muscular force (d) magnetic force
32. 32.Which of these is caused by muscular force? (a) a rolling ball slows (b) shoes grip the floor (c) an apple falls down (d) lifting a school bag
33. 33.💪 Which force is at work: brakes stop a bicycle? (a) friction (b) magnetic force (c) muscular force (d) gravity
34. 34.Which of these is caused by gravity? (a) a rolling ball slows (b) shoes grip the floor (c) lifting a school bag (d) a river flows downhill
35. 35.True or false: opening a drawer is a push. (a) True (b) False
36. 36.💪 Which force is at work: a fridge magnet sticks? (a) gravity (b) muscular force (c) magnetic force (d) friction
37. 37.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) friction (c) gravity (d) muscular force
38. 38.💪 Which can a force NOT do? (a) stop it moving (b) start it moving (c) change its colour (d) change its shape
39. 39.💪 In a tug of war, one team pulls left with 95 N and the other pulls right with 70 N. What is the size of the net force, in newtons?
40. 40.💪 In a tug of war, one team pulls right with 30 N and the other pulls left with 10 N. What is the size of the net force, in newtons?

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