Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 176 · 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) litre (L) (b) newton (N) (c) metre (m) (d) second (s)
2. 2.💪 In a tug of war, one team pulls right with 95 N and the other pulls left with 55 N. What is the size of the net force, in newtons?
3. 3.💪 A box weighs 160 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
4. 4.💪 Which force pulls everything towards the Earth? (a) gravity (b) friction (c) wind (d) magnetism
5. 5.True or false: pulling a cart is a push. (a) False (b) True
6. 6.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) gravity (c) friction (d) muscular force
7. 7.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
8. 8.Which of these is caused by muscular force? (a) a river flows downhill (b) an apple falls down (c) shoes grip the floor (d) lifting a school bag
9. 9.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
10. 10.💪 Two children push a box to the right, one with 65 N and the other with 95 N. What is the net (total) force on the box, in newtons?
11. 11.💪 Two children push a box to the right, one with 10 N and the other with 90 N. What is the net (total) force on the box, in newtons?
12. 12.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
13. 13.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) balanced (c) unbalanced (d) gravity
14. 14.True or false: a tug of war is a pull. (a) False (b) True
15. 15.Which of these is caused by friction? (a) a fridge magnet sticks (b) lifting a school bag (c) rubbing hands warms them (d) an apple falls down
16. 16.💪 A bag has a mass of 60 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
17. 17.True or false: a tug of war is a push. (a) True (b) False
18. 18.True or false: pushing a trolley is a push. (a) False (b) True
19. 19.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
20. 20.True or false: closing a drawer is a push. (a) False (b) True
21. 21.💪 Which force is at work: a compass needle turns? (a) gravity (b) muscular force (c) friction (d) magnetic force
22. 22.True or false: kicking a football is a push. (a) False (b) True
23. 23.Which of these is caused by magnetic force? (a) a compass needle turns (b) pedalling a cycle (c) a thrown ball comes down (d) a rolling ball slows
24. 24.Which of these is caused by muscular force? (a) a compass needle turns (b) a thrown ball comes down (c) squeezing a lemon (d) rubbing hands warms them
25. 25.💪 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?
26. 26.True or false: pressing a doorbell is a push. (a) True (b) False
27. 27.💪 Which can a force NOT do? (a) start it moving (b) stop it moving (c) change its colour (d) change its shape
28. 28.💪 A box weighs 240 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
29. 29.Which of these is caused by magnetic force? (a) a magnet picks up pins (b) rain falls to the ground (c) pedalling a cycle (d) shoes grip the floor
30. 30.True or false: opening a drawer is a push. (a) False (b) True
31. 31.True or false: pressing a doorbell is a pull. (a) True (b) False
32. 32.True or false: hitting a cricket ball is a pull. (a) False (b) True
33. 33.💪 Two children push a box to the right, one with 5 N and the other with 30 N. What is the net (total) force on the box, in newtons?
34. 34.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
35. 35.True or false: plucking a mango is a pull. (a) True (b) False
36. 36.💪 A cart is pulled to the right with 70 N and to the left with 80 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
37. 37.True or false: drawing up a well bucket is a pull. (a) False (b) True
38. 38.True or false: pushing a swing is a push. (a) True (b) False
39. 39.💪 Two children push a box to the right, one with 70 N and the other with 35 N. What is the net (total) force on the box, in newtons?
40. 40.💪 Two children push a box to the right, one with 65 N and the other with 30 N. What is the net (total) force on the box, in newtons?

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