Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 918 · 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: shoes grip the floor? (a) gravity (b) friction (c) muscular force (d) magnetic force
2. 2.Which of these is caused by muscular force? (a) a river flows downhill (b) rain falls to the ground (c) a thrown ball comes down (d) lifting a school bag
3. 3.💪 In a tug of war, one team pulls right with 30 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
4. 4.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) friction (c) gravity (d) muscular force
5. 5.💪 Which force is at work: lifting a school bag? (a) gravity (b) magnetic force (c) muscular force (d) friction
6. 6.True or false: kicking a football is a push. (a) True (b) False
7. 7.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) gravity (c) doubled (d) balanced
8. 8.💪 Two children push a box to the right, one with 15 N and the other with 25 N. What is the net (total) force on the box, in newtons?
9. 9.💪 A box weighs 320 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
10. 10.Which of these is caused by friction? (a) shoes grip the floor (b) rain falls to the ground (c) a thrown ball comes down (d) a compass needle turns
11. 11.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
12. 12.💪 A force is a … (a) kind of colour (b) unit of time (c) push or a pull (d) type of sound
13. 13.Which of these is caused by magnetic force? (a) a river flows downhill (b) an apple falls down (c) a fridge magnet sticks (d) brakes stop a bicycle
14. 14.Which of these is caused by gravity? (a) a compass needle turns (b) a fridge magnet sticks (c) a magnet picks up pins (d) a thrown ball comes down
15. 15.💪 In which unit do we measure force? (a) newton (N) (b) litre (L) (c) second (s) (d) metre (m)
16. 16.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
17. 17.💪 A box weighs 70 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
18. 18.Which of these is caused by friction? (a) a compass needle turns (b) a river flows downhill (c) brakes stop a bicycle (d) pedalling a cycle
19. 19.💪 In a tug of war, one team pulls left with 35 N and the other pulls right with 30 N. What is the size of the net force, in newtons?
20. 20.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) shoes grip the floor (c) lifting a school bag (d) a magnet picks up pins
21. 21.💪 A cart is pulled to the right with 25 N and to the left with 10 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
22. 22.💪 A box weighs 250 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
23. 23.💪 A bag has a mass of 54 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
24. 24.💪 Which can a force NOT do? (a) change its colour (b) start it moving (c) stop it moving (d) change its shape
25. 25.💪 In a tug of war, one team pulls left with 55 N and the other pulls right with 30 N. What is the size of the net force, in newtons?
26. 26.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
27. 27.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) gravity (c) friction (d) muscular force
28. 28.💪 Which force is at work: a magnet picks up pins? (a) muscular force (b) magnetic force (c) gravity (d) friction
29. 29.Which of these is caused by muscular force? (a) a fridge magnet sticks (b) a thrown ball comes down (c) an apple falls down (d) pedalling a cycle
30. 30.💪 In a tug of war, one team pulls left with 50 N and the other pulls right with 35 N. What is the size of the net force, in newtons?
31. 31.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
32. 32.💪 A cart is pulled to the right with 45 N and to the left with 40 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
33. 33.💪 In a tug of war, one team pulls left with 100 N and the other pulls right with 60 N. What is the size of the net force, in newtons?
34. 34.True or false: pushing a swing is a pull. (a) False (b) True
35. 35.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
36. 36.💪 In a tug of war, one team pulls right with 30 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
37. 37.💪 In a tug of war, one team pulls right with 50 N and the other pulls left with 30 N. What is the size of the net force, in newtons?
38. 38.💪 Two children push a box to the right, one with 100 N and the other with 5 N. What is the net (total) force on the box, in newtons?
39. 39.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
40. 40.💪 Two children push a box to the right, one with 100 N and the other with 55 N. What is the net (total) force on the box, in newtons?

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