Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 43 · 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 which unit do we measure force? (a) second (s) (b) litre (L) (c) metre (m) (d) newton (N)
2. 2.💪 In a tug of war, one team pulls left with 70 N and the other pulls right with 35 N. What is the size of the net force, in newtons?
3. 3.Which of these is caused by muscular force? (a) a compass needle turns (b) a fridge magnet sticks (c) brakes stop a bicycle (d) squeezing a lemon
4. 4.True or false: pressing a doorbell is a push. (a) True (b) False
5. 5.💪 A bag has a mass of 41 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
6. 6.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
7. 7.💪 Two equal forces push on a box from opposite sides. They are … (a) balanced (b) doubled (c) unbalanced (d) gravity
8. 8.💪 Two children push a box to the right, one with 60 N and the other with 45 N. What is the net (total) force on the box, in newtons?
9. 9.True or false: pressing a doorbell is a pull. (a) True (b) False
10. 10.💪 Which force is at work: rubbing hands warms them? (a) muscular force (b) gravity (c) magnetic force (d) friction
11. 11.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
12. 12.💪 A cart is pulled to the right with 90 N and to the left with 75 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
13. 13.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) gravity (c) friction (d) muscular force
14. 14.💪 A cart is pulled to the right with 35 N and to the left with 20 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
15. 15.💪 Which force is at work: a river flows downhill? (a) gravity (b) magnetic force (c) muscular force (d) friction
16. 16.💪 A box weighs 140 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
17. 17.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
18. 18.True or false: pushing a trolley is a push. (a) True (b) False
19. 19.💪 In a tug of war, one team pulls right with 85 N and the other pulls left with 75 N. What is the size of the net force, in newtons?
20. 20.💪 A cart is pulled to the right with 35 N and to the left with 50 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
21. 21.True or false: closing a drawer is a pull. (a) False (b) True
22. 22.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
23. 23.💪 Which force pulls everything towards the Earth? (a) magnetism (b) wind (c) gravity (d) friction
24. 24.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
25. 25.💪 Which force is at work: a compass needle turns? (a) magnetic force (b) gravity (c) friction (d) muscular force
26. 26.💪 Which force is at work: pedalling a cycle? (a) gravity (b) friction (c) magnetic force (d) muscular force
27. 27.💪 A force is a … (a) type of sound (b) kind of colour (c) push or a pull (d) unit of time
28. 28.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
29. 29.💪 Which force is at work: a rolling ball slows? (a) magnetic force (b) muscular force (c) gravity (d) friction
30. 30.Which of these is caused by gravity? (a) rubbing hands warms them (b) shoes grip the floor (c) a magnet picks up pins (d) a thrown ball comes down
31. 31.💪 Two children push a box to the right, one with 100 N and the other with 80 N. What is the net (total) force on the box, in newtons?
32. 32.Which of these is caused by friction? (a) brakes stop a bicycle (b) pedalling a cycle (c) squeezing a lemon (d) a thrown ball comes down
33. 33.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
34. 34.True or false: plucking a mango is a push. (a) True (b) False
35. 35.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) friction (c) magnetic force (d) gravity
36. 36.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
37. 37.💪 In a tug of war, one team pulls right with 75 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
38. 38.True or false: hitting a cricket ball is a push. (a) True (b) False
39. 39.💪 Which force is at work: an apple falls down? (a) muscular force (b) friction (c) magnetic force (d) gravity
40. 40.Which of these is caused by muscular force? (a) a rolling ball slows (b) lifting a school bag (c) shoes grip the floor (d) a magnet picks up pins

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