Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 18 · 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.💪 In a tug of war, one team pulls right with 85 N and the other pulls left with 75 N. What is the size of the net force, in newtons?
2. 2.💪 In a tug of war, one team pulls left with 25 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
3. 3.Which of these is caused by gravity? (a) a compass needle turns (b) a magnet picks up pins (c) a river flows downhill (d) pedalling a cycle
4. 4.💪 Which force is at work: shoes grip the floor? (a) gravity (b) friction (c) muscular force (d) magnetic force
5. 5.True or false: drawing up a well bucket is a pull. (a) False (b) True
6. 6.Which of these is caused by magnetic force? (a) a magnet picks up pins (b) lifting a school bag (c) rain falls to the ground (d) a rolling ball slows
7. 7.True or false: closing a drawer is a pull. (a) False (b) True
8. 8.💪 Which force is at work: a rolling ball slows? (a) gravity (b) muscular force (c) friction (d) magnetic force
9. 9.💪 Which force is at work: squeezing a lemon? (a) muscular force (b) friction (c) gravity (d) magnetic force
10. 10.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
11. 11.True or false: kicking a football is a pull. (a) False (b) True
12. 12.💪 Which force is at work: brakes stop a bicycle? (a) friction (b) muscular force (c) gravity (d) magnetic force
13. 13.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) rubbing hands warms them (c) a compass needle turns (d) a river flows downhill
14. 14.💪 A force is a … (a) unit of time (b) type of sound (c) push or a pull (d) kind of colour
15. 15.💪 A box weighs 90 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
16. 16.💪 Two children push a box to the right, one with 60 N and the other with 85 N. What is the net (total) force on the box, in newtons?
17. 17.💪 A box weighs 310 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
18. 18.True or false: pressing a doorbell is a push. (a) True (b) False
19. 19.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
20. 20.💪 A bag has a mass of 35 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
21. 21.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) friction (c) muscular force (d) gravity
22. 22.💪 In which unit do we measure force? (a) metre (m) (b) newton (N) (c) second (s) (d) litre (L)
23. 23.💪 Two children push a box to the right, one with 40 N and the other with 95 N. What is the net (total) force on the box, in newtons?
24. 24.Which of these is caused by friction? (a) a rolling ball slows (b) rain falls to the ground (c) a magnet picks up pins (d) a fridge magnet sticks
25. 25.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
26. 26.True or false: pulling up your socks is a pull. (a) False (b) True
27. 27.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
28. 28.💪 Two children push a box to the right, one with 35 N and the other with 10 N. What is the net (total) force on the box, in newtons?
29. 29.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) unbalanced (c) balanced (d) doubled
30. 30.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) gravity (c) friction (d) magnetic force
31. 31.Which of these is caused by muscular force? (a) rain falls to the ground (b) a compass needle turns (c) a rolling ball slows (d) squeezing a lemon
32. 32.💪 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?
33. 33.Which of these is caused by gravity? (a) squeezing a lemon (b) an apple falls down (c) shoes grip the floor (d) pedalling a cycle
34. 34.💪 A box weighs 30 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
35. 35.💪 Which can a force NOT do? (a) change its shape (b) change its colour (c) stop it moving (d) start it moving
36. 36.💪 In a tug of war, one team pulls left with 75 N and the other pulls right with 25 N. What is the size of the net force, in newtons?
37. 37.True or false: pushing a trolley is a pull. (a) False (b) True
38. 38.💪 Which force is at work: an apple falls down? (a) magnetic force (b) muscular force (c) gravity (d) friction
39. 39.💪 Which force is at work: a magnet picks up pins? (a) magnetic force (b) friction (c) muscular force (d) gravity
40. 40.Which of these is caused by magnetic force? (a) a thrown ball comes down (b) an apple falls down (c) squeezing a lemon (d) a fridge magnet sticks

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