Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 860 · 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.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) balanced (c) gravity (d) unbalanced
2. 2.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
3. 3.True or false: a tug of war is a push. (a) True (b) False
4. 4.💪 In a tug of war, one team pulls right with 40 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
5. 5.💪 A force is a … (a) push or a pull (b) unit of time (c) type of sound (d) kind of colour
6. 6.💪 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) no net force (b) to the left (c) to the right
7. 7.Which of these is caused by magnetic force? (a) an apple falls down (b) brakes stop a bicycle (c) a magnet picks up pins (d) squeezing a lemon
8. 8.💪 Which force pulls everything towards the Earth? (a) magnetism (b) wind (c) gravity (d) friction
9. 9.💪 In which unit do we measure force? (a) litre (L) (b) second (s) (c) metre (m) (d) newton (N)
10. 10.💪 Two children push a box to the right, one with 100 N and the other with 30 N. What is the net (total) force on the box, in newtons?
11. 11.💪 Which force is at work: brakes stop a bicycle? (a) magnetic force (b) muscular force (c) gravity (d) friction
12. 12.💪 Which force is at work: a thrown ball comes down? (a) friction (b) muscular force (c) magnetic force (d) gravity
13. 13.💪 Which force is at work: pedalling a cycle? (a) friction (b) gravity (c) muscular force (d) magnetic force
14. 14.True or false: plucking a mango is a push. (a) False (b) True
15. 15.Which of these is caused by friction? (a) a river flows downhill (b) a fridge magnet sticks (c) lifting a school bag (d) brakes stop a bicycle
16. 16.Which of these is caused by muscular force? (a) an apple falls down (b) squeezing a lemon (c) a thrown ball comes down (d) a rolling ball slows
17. 17.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
18. 18.💪 Two children push a box to the right, one with 55 N and the other with 25 N. What is the net (total) force on the box, in newtons?
19. 19.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) gravity (c) magnetic force (d) friction
20. 20.Which of these is caused by gravity? (a) brakes stop a bicycle (b) shoes grip the floor (c) squeezing a lemon (d) rain falls to the ground
21. 21.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
22. 22.💪 In a tug of war, one team pulls left with 55 N and the other pulls right with 35 N. What is the size of the net force, in newtons?
23. 23.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) gravity (c) friction (d) muscular force
24. 24.True or false: kicking a football is a pull. (a) True (b) False
25. 25.💪 Two children push a box to the right, one with 60 N and the other with 100 N. What is the net (total) force on the box, in newtons?
26. 26.True or false: closing a drawer is a pull. (a) True (b) False
27. 27.💪 Which can a force NOT do? (a) change its colour (b) change its shape (c) stop it moving (d) start it moving
28. 28.True or false: hitting a cricket ball is a push. (a) True (b) False
29. 29.Which of these is caused by gravity? (a) a thrown ball comes down (b) a fridge magnet sticks (c) lifting a school bag (d) a rolling ball slows
30. 30.Which of these is caused by gravity? (a) a compass needle turns (b) a rolling ball slows (c) a river flows downhill (d) brakes stop a bicycle
31. 31.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
32. 32.💪 In a tug of war, one team pulls left with 30 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
33. 33.Which of these is caused by gravity? (a) a compass needle turns (b) a magnet picks up pins (c) an apple falls down (d) brakes stop a bicycle
34. 34.True or false: pulling up your socks is a pull. (a) True (b) False
35. 35.💪 Two children push a box to the right, one with 40 N and the other with 75 N. What is the net (total) force on the box, in newtons?
36. 36.💪 Which force is at work: squeezing a lemon? (a) muscular force (b) friction (c) gravity (d) magnetic force
37. 37.💪 A bag has a mass of 23 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
38. 38.Which of these is caused by muscular force? (a) rain falls to the ground (b) an apple falls down (c) shoes grip the floor (d) lifting a school bag
39. 39.True or false: opening a drawer is a pull. (a) True (b) False
40. 40.Which of these is caused by friction? (a) rain falls to the ground (b) rubbing hands warms them (c) a magnet picks up pins (d) pedalling a cycle

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