Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 94 · 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) a magnet picks up pins (b) a river flows downhill (c) a rolling ball slows (d) an apple falls down
2. 2.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
3. 3.Which of these is caused by gravity? (a) a river flows downhill (b) pedalling a cycle (c) shoes grip the floor (d) brakes stop a bicycle
4. 4.💪 In a tug of war, one team pulls right with 60 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
5. 5.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) unbalanced (c) balanced (d) gravity
6. 6.💪 A box weighs 90 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
7. 7.💪 Which force is at work: squeezing a lemon? (a) gravity (b) muscular force (c) friction (d) magnetic force
8. 8.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) magnetic force (c) gravity (d) friction
9. 9.💪 Which force is at work: a compass needle turns? (a) friction (b) muscular force (c) gravity (d) magnetic force
10. 10.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
11. 11.💪 Which force is at work: pedalling a cycle? (a) muscular force (b) magnetic force (c) friction (d) gravity
12. 12.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
13. 13.Which of these is caused by muscular force? (a) shoes grip the floor (b) a fridge magnet sticks (c) pedalling a cycle (d) a magnet picks up pins
14. 14.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
15. 15.True or false: pushing a trolley is a pull. (a) True (b) False
16. 16.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
17. 17.Which of these is caused by muscular force? (a) rubbing hands warms them (b) a thrown ball comes down (c) a fridge magnet sticks (d) squeezing a lemon
18. 18.💪 Which force pulls everything towards the Earth? (a) friction (b) wind (c) gravity (d) magnetism
19. 19.True or false: closing a drawer is a pull. (a) False (b) True
20. 20.💪 A bag has a mass of 45 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
21. 21.💪 A cart is pulled to the right with 95 N and to the left with 100 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
22. 22.Which of these is caused by friction? (a) a compass needle turns (b) shoes grip the floor (c) an apple falls down (d) pedalling a cycle
23. 23.True or false: opening a drawer is a push. (a) False (b) True
24. 24.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
25. 25.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
26. 26.True or false: pressing a doorbell is a pull. (a) True (b) False
27. 27.💪 A force is a … (a) kind of colour (b) unit of time (c) type of sound (d) push or a pull
28. 28.💪 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?
29. 29.💪 Which can a force NOT do? (a) change its shape (b) stop it moving (c) change its colour (d) start it moving
30. 30.💪 Two children push a box to the right, one with 35 N and the other with 25 N. What is the net (total) force on the box, in newtons?
31. 31.💪 In which unit do we measure force? (a) litre (L) (b) newton (N) (c) metre (m) (d) second (s)
32. 32.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
33. 33.💪 Which force is at work: a river flows downhill? (a) gravity (b) friction (c) magnetic force (d) muscular force
34. 34.True or false: kicking a football is a pull. (a) False (b) True
35. 35.💪 Which force is at work: shoes grip the floor? (a) muscular force (b) magnetic force (c) gravity (d) friction
36. 36.💪 A cart is pulled to the right with 40 N and to the left with 35 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
37. 37.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
38. 38.💪 A bag has a mass of 7 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
39. 39.True or false: pulling up your socks is a push. (a) True (b) False
40. 40.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) a compass needle turns (c) rain falls to the ground (d) shoes grip the floor

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