Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 947 · 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 100 N and the other with 40 N. What is the net (total) force on the box, in newtons?
2. 2.💪 Which force pulls everything towards the Earth? (a) wind (b) magnetism (c) gravity (d) friction
3. 3.True or false: hitting a cricket ball is a push. (a) False (b) True
4. 4.Which of these is caused by gravity? (a) pedalling a cycle (b) a compass needle turns (c) a thrown ball comes down (d) a magnet picks up pins
5. 5.Which of these is caused by friction? (a) a river flows downhill (b) squeezing a lemon (c) an apple falls down (d) a rolling ball slows
6. 6.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
7. 7.💪 Is pushing a trolley a push or a pull? (a) a push (b) a pull
8. 8.True or false: pressing a doorbell is a pull. (a) True (b) False
9. 9.💪 In a tug of war, one team pulls right with 85 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
10. 10.Which of these is caused by muscular force? (a) lifting a school bag (b) brakes stop a bicycle (c) rubbing hands warms them (d) a thrown ball comes down
11. 11.💪 A bag has a mass of 40 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
12. 12.Which of these is caused by gravity? (a) brakes stop a bicycle (b) lifting a school bag (c) a river flows downhill (d) a rolling ball slows
13. 13.Which of these is caused by friction? (a) a fridge magnet sticks (b) brakes stop a bicycle (c) a thrown ball comes down (d) rain falls to the ground
14. 14.💪 A force is a … (a) type of sound (b) kind of colour (c) unit of time (d) push or a pull
15. 15.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
16. 16.True or false: pressing a doorbell is a push. (a) True (b) False
17. 17.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
18. 18.💪 Which force is at work: shoes grip the floor? (a) gravity (b) muscular force (c) friction (d) magnetic force
19. 19.💪 Which can a force NOT do? (a) change its shape (b) start it moving (c) stop it moving (d) change its colour
20. 20.Which of these is caused by gravity? (a) a compass needle turns (b) an apple falls down (c) rubbing hands warms them (d) a magnet picks up pins
21. 21.💪 Two children push a box to the right, one with 35 N and the other with 35 N. What is the net (total) force on the box, in newtons?
22. 22.💪 Which force is at work: a river flows downhill? (a) friction (b) magnetic force (c) gravity (d) muscular force
23. 23.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) squeezing a lemon (c) lifting a school bag (d) a fridge magnet sticks
24. 24.💪 A box weighs 300 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
25. 25.💪 A bag has a mass of 33 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
26. 26.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
27. 27.💪 A cart is pulled to the right with 40 N and to the left with 45 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
28. 28.True or false: closing a drawer is a push. (a) False (b) True
29. 29.💪 In a tug of war, one team pulls left with 20 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
30. 30.True or false: closing a drawer is a pull. (a) True (b) False
31. 31.True or false: kicking a football is a pull. (a) False (b) True
32. 32.True or false: a tug of war is a push. (a) True (b) False
33. 33.💪 In a tug of war, one team pulls left with 70 N and the other pulls right with 30 N. What is the size of the net force, in newtons?
34. 34.True or false: pulling up your socks is a pull. (a) True (b) False
35. 35.💪 A bag has a mass of 44 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
36. 36.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) friction (c) magnetic force (d) gravity
37. 37.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) balanced (c) doubled (d) unbalanced
38. 38.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
39. 39.💪 In a tug of war, one team pulls right with 80 N and the other pulls left with 35 N. What is the size of the net force, in newtons?
40. 40.True or false: pushing a swing is a push. (a) False (b) True

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