Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 756 · 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) shoes grip the floor (b) a river flows downhill (c) a fridge magnet sticks (d) lifting a school bag
2. 2.💪 Two children push a box to the right, one with 85 N and the other with 75 N. What is the net (total) force on the box, in newtons?
3. 3.True or false: closing a drawer is a pull. (a) True (b) False
4. 4.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
5. 5.True or false: pressing a doorbell is a push. (a) False (b) True
6. 6.Which of these is caused by friction? (a) pedalling a cycle (b) a rolling ball slows (c) an apple falls down (d) a thrown ball comes down
7. 7.💪 Two children push a box to the right, one with 40 N and the other with 85 N. What is the net (total) force on the box, in newtons?
8. 8.💪 A box weighs 50 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
9. 9.💪 Which force is at work: a river flows downhill? (a) gravity (b) muscular force (c) magnetic force (d) friction
10. 10.Which of these is caused by magnetic force? (a) an apple falls down (b) a fridge magnet sticks (c) lifting a school bag (d) shoes grip the floor
11. 11.💪 A force is a … (a) type of sound (b) unit of time (c) push or a pull (d) kind of colour
12. 12.💪 Which force is at work: lifting a school bag? (a) muscular force (b) friction (c) gravity (d) magnetic force
13. 13.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
14. 14.💪 A bag has a mass of 23 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
15. 15.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
16. 16.💪 Two children push a box to the right, one with 90 N and the other with 85 N. What is the net (total) force on the box, in newtons?
17. 17.Which of these is caused by muscular force? (a) an apple falls down (b) pedalling a cycle (c) rain falls to the ground (d) a rolling ball slows
18. 18.True or false: pressing a doorbell is a pull. (a) False (b) True
19. 19.True or false: closing a drawer is a push. (a) True (b) False
20. 20.💪 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) no net force (b) to the right (c) to the left
21. 21.💪 Which force is at work: squeezing a lemon? (a) muscular force (b) friction (c) magnetic force (d) gravity
22. 22.Which of these is caused by muscular force? (a) an apple falls down (b) a rolling ball slows (c) lifting a school bag (d) brakes stop a bicycle
23. 23.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
24. 24.💪 Which force is at work: rain falls to the ground? (a) friction (b) magnetic force (c) muscular force (d) gravity
25. 25.💪 A cart is pulled to the right with 80 N and to the left with 85 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
26. 26.Which of these is caused by gravity? (a) squeezing a lemon (b) a magnet picks up pins (c) a rolling ball slows (d) rain falls to the ground
27. 27.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
28. 28.True or false: a tug of war is a push. (a) False (b) True
29. 29.💪 A box weighs 560 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
30. 30.💪 In a tug of war, one team pulls right with 95 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
31. 31.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
32. 32.Which of these is caused by friction? (a) a fridge magnet sticks (b) rubbing hands warms them (c) a compass needle turns (d) an apple falls down
33. 33.💪 A box weighs 30 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
34. 34.True or false: kicking a football is a pull. (a) False (b) True
35. 35.💪 A box weighs 40 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
36. 36.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
37. 37.💪 A cart is pulled to the right with 30 N and to the left with 35 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
38. 38.💪 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
39. 39.💪 A bag has a mass of 48 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
40. 40.💪 In which unit do we measure force? (a) newton (N) (b) litre (L) (c) second (s) (d) metre (m)

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