Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 131 · 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.💪 Two children push a box to the right, one with 5 N and the other with 65 N. What is the net (total) force on the box, in newtons?
2. 2.Which of these is caused by muscular force? (a) a river flows downhill (b) shoes grip the floor (c) rubbing hands warms them (d) squeezing a lemon
3. 3.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) gravity (c) balanced (d) unbalanced
4. 4.Which of these is caused by magnetic force? (a) an apple falls down (b) rubbing hands warms them (c) brakes stop a bicycle (d) a magnet picks up pins
5. 5.💪 A box weighs 150 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
6. 6.True or false: pressing a doorbell is a pull. (a) False (b) True
7. 7.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) rain falls to the ground (c) shoes grip the floor (d) pedalling a cycle
8. 8.💪 A cart is pulled to the right with 50 N and to the left with 35 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
9. 9.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
10. 10.💪 Two children push a box to the right, one with 15 N and the other with 45 N. What is the net (total) force on the box, in newtons?
11. 11.Which of these is caused by gravity? (a) pedalling a cycle (b) brakes stop a bicycle (c) a river flows downhill (d) a rolling ball slows
12. 12.Which of these is caused by gravity? (a) a thrown ball comes down (b) a compass needle turns (c) brakes stop a bicycle (d) pedalling a cycle
13. 13.💪 A box weighs 350 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
14. 14.💪 In a tug of war, one team pulls right with 60 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
15. 15.True or false: pushing a trolley is a push. (a) True (b) False
16. 16.💪 A box weighs 590 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
17. 17.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
18. 18.True or false: pushing a swing is a push. (a) False (b) True
19. 19.True or false: opening a drawer is a push. (a) False (b) True
20. 20.💪 A bag has a mass of 9 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
21. 21.💪 In which unit do we measure force? (a) litre (L) (b) second (s) (c) metre (m) (d) newton (N)
22. 22.💪 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) to the left (b) to the right (c) no net force
23. 23.True or false: pushing a swing is a pull. (a) False (b) True
24. 24.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) muscular force (c) magnetic force (d) friction
25. 25.Which of these is caused by friction? (a) rain falls to the ground (b) shoes grip the floor (c) a river flows downhill (d) a magnet picks up pins
26. 26.💪 A box weighs 330 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
27. 27.💪 Two children push a box to the right, one with 45 N and the other with 65 N. What is the net (total) force on the box, in newtons?
28. 28.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
29. 29.💪 Two children push a box to the right, one with 85 N and the other with 40 N. What is the net (total) force on the box, in newtons?
30. 30.True or false: kicking a football is a pull. (a) False (b) True
31. 31.💪 Which force is at work: lifting a school bag? (a) gravity (b) friction (c) muscular force (d) magnetic force
32. 32.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
33. 33.💪 A bag has a mass of 50 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
34. 34.💪 Which force is at work: pedalling a cycle? (a) magnetic force (b) gravity (c) friction (d) muscular force
35. 35.Which of these is caused by gravity? (a) brakes stop a bicycle (b) a magnet picks up pins (c) a rolling ball slows (d) rain falls to the ground
36. 36.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
37. 37.💪 Which force pulls everything towards the Earth? (a) friction (b) magnetism (c) wind (d) gravity
38. 38.True or false: hitting a cricket ball is a push. (a) False (b) True
39. 39.Which of these is caused by friction? (a) lifting a school bag (b) an apple falls down (c) a fridge magnet sticks (d) rubbing hands warms them
40. 40.💪 Which force is at work: a thrown ball comes down? (a) friction (b) magnetic force (c) muscular force (d) gravity

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