Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 760 · 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: brakes stop a bicycle? (a) gravity (b) friction (c) muscular force (d) magnetic force
2. 2.True or false: closing a drawer is a push. (a) False (b) True
3. 3.💪 A force is a … (a) type of sound (b) unit of time (c) push or a pull (d) kind of colour
4. 4.💪 A box weighs 280 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
5. 5.Which of these is caused by friction? (a) a river flows downhill (b) brakes stop a bicycle (c) a compass needle turns (d) a magnet picks up pins
6. 6.Which of these is caused by muscular force? (a) a magnet picks up pins (b) rubbing hands warms them (c) rain falls to the ground (d) squeezing a lemon
7. 7.💪 Which force is at work: shoes grip the floor? (a) friction (b) muscular force (c) gravity (d) magnetic force
8. 8.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
9. 9.💪 A bag has a mass of 47 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
10. 10.💪 Which force is at work: an apple falls down? (a) friction (b) gravity (c) muscular force (d) magnetic force
11. 11.💪 Which can a force NOT do? (a) start it moving (b) stop it moving (c) change its colour (d) change its shape
12. 12.💪 In which unit do we measure force? (a) second (s) (b) newton (N) (c) metre (m) (d) litre (L)
13. 13.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
14. 14.True or false: hitting a cricket ball is a pull. (a) True (b) False
15. 15.Which of these is caused by magnetic force? (a) a river flows downhill (b) a thrown ball comes down (c) squeezing a lemon (d) a magnet picks up pins
16. 16.Which of these is caused by gravity? (a) rubbing hands warms them (b) rain falls to the ground (c) shoes grip the floor (d) squeezing a lemon
17. 17.True or false: opening a drawer is a pull. (a) False (b) True
18. 18.💪 Two children push a box to the right, one with 50 N and the other with 40 N. What is the net (total) force on the box, in newtons?
19. 19.💪 A bag has a mass of 17 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
20. 20.💪 Which force is at work: a river flows downhill? (a) gravity (b) friction (c) muscular force (d) magnetic force
21. 21.True or false: closing a drawer is a pull. (a) True (b) False
22. 22.💪 Which force pulls everything towards the Earth? (a) friction (b) wind (c) magnetism (d) gravity
23. 23.💪 A bag has a mass of 32 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
24. 24.💪 A cart is pulled to the right with 40 N and to the left with 45 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
25. 25.💪 A cart is pulled to the right with 35 N and to the left with 25 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
26. 26.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
27. 27.💪 A bag has a mass of 35 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
28. 28.💪 Which force is at work: a compass needle turns? (a) gravity (b) magnetic force (c) muscular force (d) friction
29. 29.Which of these is caused by muscular force? (a) a compass needle turns (b) an apple falls down (c) lifting a school bag (d) a rolling ball slows
30. 30.💪 Which force is at work: rain falls to the ground? (a) friction (b) gravity (c) muscular force (d) magnetic force
31. 31.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) doubled (c) balanced (d) unbalanced
32. 32.Which of these is caused by gravity? (a) rubbing hands warms them (b) a fridge magnet sticks (c) an apple falls down (d) squeezing a lemon
33. 33.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
34. 34.💪 Which force is at work: pedalling a cycle? (a) muscular force (b) gravity (c) friction (d) magnetic force
35. 35.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
36. 36.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
37. 37.💪 Two children push a box to the right, one with 10 N and the other with 55 N. What is the net (total) force on the box, in newtons?
38. 38.💪 In a tug of war, one team pulls right with 25 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
39. 39.💪 A cart is pulled to the right with 80 N and to the left with 75 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
40. 40.True or false: pushing a swing is a pull. (a) True (b) False

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