Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 981 · 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 force is at work: rubbing hands warms them? (a) muscular force (b) friction (c) magnetic force (d) gravity
2. 2.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) gravity (c) balanced (d) doubled
3. 3.💪 In a tug of war, one team pulls left with 20 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
4. 4.True or false: a tug of war is a push. (a) True (b) False
5. 5.💪 Two children push a box to the right, one with 100 N and the other with 75 N. What is the net (total) force on the box, in newtons?
6. 6.True or false: a tug of war is a pull. (a) False (b) True
7. 7.💪 Which can a force NOT do? (a) change its colour (b) change its shape (c) stop it moving (d) start it moving
8. 8.💪 Which force is at work: squeezing a lemon? (a) muscular force (b) gravity (c) magnetic force (d) friction
9. 9.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
10. 10.Which of these is caused by gravity? (a) shoes grip the floor (b) a river flows downhill (c) rubbing hands warms them (d) lifting a school bag
11. 11.💪 Two children push a box to the right, one with 20 N and the other with 45 N. What is the net (total) force on the box, in newtons?
12. 12.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
13. 13.💪 In a tug of war, one team pulls right with 70 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
14. 14.💪 Which force is at work: pedalling a cycle? (a) gravity (b) magnetic force (c) muscular force (d) friction
15. 15.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
16. 16.Which of these is caused by magnetic force? (a) lifting a school bag (b) shoes grip the floor (c) a river flows downhill (d) a compass needle turns
17. 17.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
18. 18.True or false: pressing a doorbell is a pull. (a) False (b) True
19. 19.💪 A force is a … (a) type of sound (b) unit of time (c) kind of colour (d) push or a pull
20. 20.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) gravity (c) magnetic force (d) friction
21. 21.💪 A cart is pulled to the right with 20 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
22. 22.💪 A box weighs 380 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
23. 23.💪 A box weighs 560 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
24. 24.Which of these is caused by muscular force? (a) pedalling a cycle (b) a compass needle turns (c) a thrown ball comes down (d) a rolling ball slows
25. 25.💪 Which force pulls everything towards the Earth? (a) friction (b) gravity (c) magnetism (d) wind
26. 26.💪 Which force is at work: a fridge magnet sticks? (a) gravity (b) friction (c) magnetic force (d) muscular force
27. 27.💪 Two children push a box to the right, one with 85 N and the other with 60 N. What is the net (total) force on the box, in newtons?
28. 28.💪 In which unit do we measure force? (a) second (s) (b) metre (m) (c) litre (L) (d) newton (N)
29. 29.💪 A cart is pulled to the right with 85 N and to the left with 80 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
30. 30.💪 Two children push a box to the right, one with 40 N and the other with 45 N. What is the net (total) force on the box, in newtons?
31. 31.💪 A cart is pulled to the right with 35 N and to the left with 40 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
32. 32.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
33. 33.Which of these is caused by magnetic force? (a) rain falls to the ground (b) a magnet picks up pins (c) rubbing hands warms them (d) a river flows downhill
34. 34.True or false: hitting a cricket ball is a pull. (a) False (b) True
35. 35.💪 A box weighs 320 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
36. 36.💪 A bag has a mass of 35 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
37. 37.True or false: pushing a swing is a pull. (a) False (b) True
38. 38.💪 A box weighs 550 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
39. 39.💪 In a tug of war, one team pulls right with 25 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
40. 40.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) muscular force (c) gravity (d) friction

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