Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 637 · 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.💪 A cart is pulled to the right with 30 N and to the left with 45 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
2. 2.True or false: pulling a cart is a pull. (a) False (b) True
3. 3.Which of these is caused by friction? (a) an apple falls down (b) a thrown ball comes down (c) brakes stop a bicycle (d) rain falls to the ground
4. 4.💪 Which force is at work: pedalling a cycle? (a) gravity (b) friction (c) muscular force (d) magnetic force
5. 5.True or false: pushing a trolley is a pull. (a) True (b) False
6. 6.💪 Which force is at work: lifting a school bag? (a) gravity (b) magnetic force (c) friction (d) muscular force
7. 7.💪 Which can a force NOT do? (a) start it moving (b) change its shape (c) stop it moving (d) change its colour
8. 8.Which of these is caused by friction? (a) an apple falls down (b) a thrown ball comes down (c) shoes grip the floor (d) a compass needle turns
9. 9.💪 Which force pulls everything towards the Earth? (a) wind (b) gravity (c) magnetism (d) friction
10. 10.True or false: kicking a football is a push. (a) False (b) True
11. 11.💪 A bag has a mass of 8 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
12. 12.💪 Which force is at work: brakes stop a bicycle? (a) muscular force (b) gravity (c) friction (d) magnetic force
13. 13.Which of these is caused by friction? (a) a river flows downhill (b) a fridge magnet sticks (c) a magnet picks up pins (d) a rolling ball slows
14. 14.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
15. 15.💪 A cart is pulled to the right with 90 N and to the left with 80 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
16. 16.Which of these is caused by magnetic force? (a) squeezing a lemon (b) a river flows downhill (c) a thrown ball comes down (d) a compass needle turns
17. 17.💪 Two children push a box to the right, one with 15 N and the other with 20 N. What is the net (total) force on the box, in newtons?
18. 18.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) magnetic force (c) muscular force (d) friction
19. 19.Which of these is caused by gravity? (a) an apple falls down (b) shoes grip the floor (c) brakes stop a bicycle (d) a compass needle turns
20. 20.💪 In a tug of war, one team pulls right with 100 N and the other pulls left with 50 N. What is the size of the net force, in newtons?
21. 21.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
22. 22.💪 In which unit do we measure force? (a) second (s) (b) litre (L) (c) metre (m) (d) newton (N)
23. 23.💪 A bag has a mass of 2 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
24. 24.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) doubled (c) balanced (d) unbalanced
25. 25.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) magnetic force (c) friction (d) gravity
26. 26.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
27. 27.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
28. 28.💪 A box weighs 340 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
29. 29.True or false: a tug of war is a push. (a) True (b) False
30. 30.True or false: closing a drawer is a pull. (a) True (b) False
31. 31.💪 Two children push a box to the right, one with 55 N and the other with 5 N. What is the net (total) force on the box, in newtons?
32. 32.True or false: a tug of war is a pull. (a) False (b) True
33. 33.True or false: pushing a trolley is a push. (a) False (b) True
34. 34.💪 A cart is pulled to the right with 45 N and to the left with 30 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
35. 35.💪 Which force is at work: a fridge magnet sticks? (a) gravity (b) friction (c) muscular force (d) magnetic force
36. 36.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
37. 37.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
38. 38.💪 A bag has a mass of 31 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
39. 39.💪 Two children push a box to the right, one with 25 N and the other with 20 N. What is the net (total) force on the box, in newtons?
40. 40.Which of these is caused by friction? (a) rubbing hands warms them (b) an apple falls down (c) a thrown ball comes down (d) lifting a school bag

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