Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 166 · 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 equal forces push on a box from opposite sides. They are … (a) unbalanced (b) gravity (c) doubled (d) balanced
2. 2.💪 In which unit do we measure force? (a) metre (m) (b) litre (L) (c) second (s) (d) newton (N)
3. 3.True or false: closing a drawer is a pull. (a) False (b) True
4. 4.💪 Which force is at work: a river flows downhill? (a) muscular force (b) friction (c) magnetic force (d) gravity
5. 5.💪 Which force is at work: squeezing a lemon? (a) friction (b) magnetic force (c) gravity (d) muscular force
6. 6.💪 Which can a force NOT do? (a) stop it moving (b) change its colour (c) start it moving (d) change its shape
7. 7.True or false: a tug of war is a pull. (a) True (b) False
8. 8.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
9. 9.Which of these is caused by magnetic force? (a) an apple falls down (b) lifting a school bag (c) a compass needle turns (d) shoes grip the floor
10. 10.Which of these is caused by gravity? (a) lifting a school bag (b) pedalling a cycle (c) a river flows downhill (d) squeezing a lemon
11. 11.💪 A bag has a mass of 34 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
12. 12.💪 In a tug of war, one team pulls right with 75 N and the other pulls left with 45 N. What is the size of the net force, in newtons?
13. 13.True or false: pressing a doorbell is a push. (a) False (b) True
14. 14.💪 A cart is pulled to the right with 35 N and to the left with 45 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
15. 15.💪 A bag has a mass of 14 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
16. 16.💪 A cart is pulled to the right with 85 N and to the left with 100 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
17. 17.Which of these is caused by muscular force? (a) lifting a school bag (b) a rolling ball slows (c) rubbing hands warms them (d) rain falls to the ground
18. 18.Which of these is caused by magnetic force? (a) a magnet picks up pins (b) brakes stop a bicycle (c) an apple falls down (d) rubbing hands warms them
19. 19.Which of these is caused by gravity? (a) brakes stop a bicycle (b) rain falls to the ground (c) squeezing a lemon (d) shoes grip the floor
20. 20.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
21. 21.💪 A cart is pulled to the right with 40 N and to the left with 25 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
22. 22.💪 A cart is pulled to the right with 60 N and to the left with 65 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
23. 23.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
24. 24.True or false: a tug of war is a push. (a) False (b) True
25. 25.💪 Two children push a box to the right, one with 50 N and the other with 50 N. What is the net (total) force on the box, in newtons?
26. 26.💪 Two children push a box to the right, one with 70 N and the other with 30 N. What is the net (total) force on the box, in newtons?
27. 27.💪 Which force is at work: rubbing hands warms them? (a) friction (b) muscular force (c) gravity (d) magnetic force
28. 28.Which of these is caused by friction? (a) a compass needle turns (b) a river flows downhill (c) rubbing hands warms them (d) a fridge magnet sticks
29. 29.💪 Which force is at work: rain falls to the ground? (a) friction (b) magnetic force (c) muscular force (d) gravity
30. 30.💪 A box weighs 500 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
31. 31.Which of these is caused by muscular force? (a) pedalling a cycle (b) a thrown ball comes down (c) a rolling ball slows (d) a compass needle turns
32. 32.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
33. 33.💪 In a tug of war, one team pulls right with 90 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
34. 34.💪 In a tug of war, one team pulls right with 40 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
35. 35.💪 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 right (b) no net force (c) to the left
36. 36.True or false: pushing a trolley is a push. (a) False (b) True
37. 37.Which of these is caused by friction? (a) rain falls to the ground (b) a thrown ball comes down (c) brakes stop a bicycle (d) an apple falls down
38. 38.💪 Which force pulls everything towards the Earth? (a) magnetism (b) friction (c) gravity (d) wind
39. 39.💪 A cart is pulled to the right with 100 N and to the left with 110 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
40. 40.Which of these is caused by gravity? (a) an apple falls down (b) shoes grip the floor (c) a magnet picks up pins (d) rubbing hands warms them

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