Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 591 · 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: squeezing a lemon? (a) gravity (b) magnetic force (c) friction (d) muscular force
2. 2.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
3. 3.💪 Which can a force NOT do? (a) change its colour (b) start it moving (c) change its shape (d) stop it moving
4. 4.💪 Which force is at work: pedalling a cycle? (a) gravity (b) friction (c) magnetic force (d) muscular force
5. 5.Which of these is caused by magnetic force? (a) rain falls to the ground (b) a fridge magnet sticks (c) a rolling ball slows (d) brakes stop a bicycle
6. 6.💪 A bag has a mass of 2 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
7. 7.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
8. 8.True or false: opening a drawer is a pull. (a) False (b) True
9. 9.True or false: pressing a doorbell is a push. (a) False (b) True
10. 10.💪 Which force is at work: rubbing hands warms them? (a) magnetic force (b) muscular force (c) friction (d) gravity
11. 11.💪 Two children push a box to the right, one with 80 N and the other with 15 N. What is the net (total) force on the box, in newtons?
12. 12.💪 A force is a … (a) unit of time (b) type of sound (c) push or a pull (d) kind of colour
13. 13.💪 In a tug of war, one team pulls right with 25 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
14. 14.💪 In a tug of war, one team pulls right with 40 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
15. 15.💪 In a tug of war, one team pulls left with 95 N and the other pulls right with 50 N. What is the size of the net force, in newtons?
16. 16.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) doubled (c) gravity (d) balanced
17. 17.💪 Which force pulls everything towards the Earth? (a) magnetism (b) friction (c) wind (d) gravity
18. 18.💪 A cart is pulled to the right with 95 N and to the left with 95 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
19. 19.Which of these is caused by gravity? (a) brakes stop a bicycle (b) a fridge magnet sticks (c) rain falls to the ground (d) squeezing a lemon
20. 20.💪 Which force is at work: brakes stop a bicycle? (a) friction (b) magnetic force (c) muscular force (d) gravity
21. 21.True or false: drawing up a well bucket is a push. (a) True (b) False
22. 22.💪 A cart is pulled to the right with 100 N and to the left with 110 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
23. 23.Which of these is caused by friction? (a) a compass needle turns (b) shoes grip the floor (c) squeezing a lemon (d) an apple falls down
24. 24.Which of these is caused by muscular force? (a) a thrown ball comes down (b) lifting a school bag (c) a river flows downhill (d) a fridge magnet sticks
25. 25.Which of these is caused by friction? (a) an apple falls down (b) a magnet picks up pins (c) pedalling a cycle (d) a rolling ball slows
26. 26.💪 Which force is at work: a fridge magnet sticks? (a) gravity (b) magnetic force (c) muscular force (d) friction
27. 27.💪 A box weighs 410 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
28. 28.True or false: hitting a cricket ball is a pull. (a) False (b) True
29. 29.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
30. 30.💪 A box weighs 210 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
31. 31.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
32. 32.💪 In a tug of war, one team pulls left with 95 N and the other pulls right with 70 N. What is the size of the net force, in newtons?
33. 33.💪 In which unit do we measure force? (a) litre (L) (b) second (s) (c) metre (m) (d) newton (N)
34. 34.Which of these is caused by muscular force? (a) rubbing hands warms them (b) pedalling a cycle (c) an apple falls down (d) a magnet picks up pins
35. 35.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) friction (c) gravity (d) muscular force
36. 36.Which of these is caused by friction? (a) a compass needle turns (b) an apple falls down (c) rain falls to the ground (d) rubbing hands warms them
37. 37.💪 Two children push a box to the right, one with 75 N and the other with 100 N. What is the net (total) force on the box, in newtons?
38. 38.💪 Which force is at work: lifting a school bag? (a) friction (b) gravity (c) magnetic force (d) muscular force
39. 39.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) friction (c) magnetic force (d) gravity
40. 40.Which of these is caused by magnetic force? (a) shoes grip the floor (b) a magnet picks up pins (c) brakes stop a bicycle (d) a river flows downhill

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