Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 76 · 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 of these is caused by friction? (a) lifting a school bag (b) pedalling a cycle (c) a magnet picks up pins (d) shoes grip the floor
2. 2.💪 In a tug of war, one team pulls right with 90 N and the other pulls left with 85 N. What is the size of the net force, in newtons?
3. 3.True or false: pulling a cart is a push. (a) False (b) True
4. 4.Which of these is caused by magnetic force? (a) a river flows downhill (b) lifting a school bag (c) an apple falls down (d) a compass needle turns
5. 5.True or false: closing a drawer is a pull. (a) True (b) False
6. 6.True or false: plucking a mango is a pull. (a) False (b) True
7. 7.💪 A box weighs 210 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
8. 8.💪 A force is a … (a) kind of colour (b) type of sound (c) unit of time (d) push or a pull
9. 9.True or false: kicking a football is a pull. (a) True (b) False
10. 10.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
11. 11.💪 A box weighs 130 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
12. 12.💪 Which force is at work: a thrown ball comes down? (a) gravity (b) muscular force (c) magnetic force (d) friction
13. 13.💪 Which force is at work: lifting a school bag? (a) friction (b) muscular force (c) magnetic force (d) gravity
14. 14.💪 Which force is at work: a magnet picks up pins? (a) gravity (b) muscular force (c) friction (d) magnetic force
15. 15.💪 A bag has a mass of 40 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
16. 16.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
17. 17.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
18. 18.💪 Which force pulls everything towards the Earth? (a) magnetism (b) friction (c) wind (d) gravity
19. 19.True or false: closing a drawer is a push. (a) False (b) True
20. 20.💪 Two children push a box to the right, one with 45 N and the other with 15 N. What is the net (total) force on the box, in newtons?
21. 21.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
22. 22.💪 A bag has a mass of 48 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
23. 23.💪 In a tug of war, one team pulls left with 10 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
24. 24.Which of these is caused by gravity? (a) a magnet picks up pins (b) an apple falls down (c) a rolling ball slows (d) brakes stop a bicycle
25. 25.💪 Two children push a box to the right, one with 55 N and the other with 40 N. What is the net (total) force on the box, in newtons?
26. 26.💪 A bag has a mass of 11 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
27. 27.Which of these is caused by magnetic force? (a) rubbing hands warms them (b) a magnet picks up pins (c) a rolling ball slows (d) squeezing a lemon
28. 28.💪 Which can a force NOT do? (a) change its colour (b) start it moving (c) change its shape (d) stop it moving
29. 29.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) magnetic force (c) muscular force (d) friction
30. 30.💪 A box weighs 560 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
31. 31.💪 A cart is pulled to the right with 55 N and to the left with 70 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
32. 32.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) unbalanced (c) doubled (d) balanced
33. 33.💪 A cart is pulled to the right with 55 N and to the left with 55 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
34. 34.Which of these is caused by gravity? (a) rubbing hands warms them (b) shoes grip the floor (c) rain falls to the ground (d) a rolling ball slows
35. 35.Which of these is caused by magnetic force? (a) a rolling ball slows (b) a thrown ball comes down (c) lifting a school bag (d) a fridge magnet sticks
36. 36.Which of these is caused by muscular force? (a) a rolling ball slows (b) a thrown ball comes down (c) lifting a school bag (d) shoes grip the floor
37. 37.💪 In which unit do we measure force? (a) metre (m) (b) second (s) (c) newton (N) (d) litre (L)
38. 38.💪 A bag has a mass of 43 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 35 N and the other with 15 N. What is the net (total) force on the box, in newtons?
40. 40.True or false: drawing up a well bucket is a push. (a) True (b) False

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