Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 718 · 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.💪 A box weighs 340 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
2. 2.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) gravity (c) balanced (d) doubled
3. 3.💪 Two children push a box to the right, one with 100 N and the other with 20 N. What is the net (total) force on the box, in newtons?
4. 4.💪 In a tug of war, one team pulls right with 75 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
5. 5.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
6. 6.💪 A cart is pulled to the right with 95 N and to the left with 80 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
7. 7.Which of these is caused by muscular force? (a) a thrown ball comes down (b) an apple falls down (c) pedalling a cycle (d) a magnet picks up pins
8. 8.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
9. 9.Which of these is caused by magnetic force? (a) an apple falls down (b) a thrown ball comes down (c) pedalling a cycle (d) a fridge magnet sticks
10. 10.💪 Which force is at work: a magnet picks up pins? (a) friction (b) magnetic force (c) muscular force (d) gravity
11. 11.True or false: plucking a mango is a push. (a) False (b) True
12. 12.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
13. 13.💪 Which force is at work: an apple falls down? (a) gravity (b) muscular force (c) friction (d) magnetic force
14. 14.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) friction (c) muscular force (d) gravity
15. 15.Which of these is caused by magnetic force? (a) squeezing a lemon (b) a rolling ball slows (c) a compass needle turns (d) lifting a school bag
16. 16.Which of these is caused by muscular force? (a) a compass needle turns (b) a fridge magnet sticks (c) brakes stop a bicycle (d) lifting a school bag
17. 17.True or false: pushing a trolley is a pull. (a) True (b) False
18. 18.Which of these is caused by friction? (a) a thrown ball comes down (b) rubbing hands warms them (c) a river flows downhill (d) an apple falls down
19. 19.Which of these is caused by gravity? (a) an apple falls down (b) pedalling a cycle (c) lifting a school bag (d) a compass needle turns
20. 20.💪 Which force pulls everything towards the Earth? (a) wind (b) magnetism (c) gravity (d) friction
21. 21.💪 Two children push a box to the right, one with 85 N and the other with 5 N. What is the net (total) force on the box, in newtons?
22. 22.💪 A force is a … (a) unit of time (b) type of sound (c) push or a pull (d) kind of colour
23. 23.True or false: hitting a cricket ball is a pull. (a) False (b) True
24. 24.💪 Which force is at work: a river flows downhill? (a) magnetic force (b) muscular force (c) gravity (d) friction
25. 25.💪 In which unit do we measure force? (a) second (s) (b) newton (N) (c) litre (L) (d) metre (m)
26. 26.💪 A box weighs 410 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
27. 27.True or false: opening a drawer is a pull. (a) False (b) True
28. 28.💪 A box weighs 100 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
29. 29.Which of these is caused by gravity? (a) rubbing hands warms them (b) squeezing a lemon (c) brakes stop a bicycle (d) a river flows downhill
30. 30.True or false: pushing a trolley is a push. (a) True (b) False
31. 31.💪 Is pulling up your socks a push or a pull? (a) a pull (b) a push
32. 32.True or false: closing a drawer is a pull. (a) True (b) False
33. 33.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
34. 34.💪 Two children push a box to the right, one with 95 N and the other with 100 N. What is the net (total) force on the box, in newtons?
35. 35.💪 Which force is at work: pedalling a cycle? (a) magnetic force (b) gravity (c) friction (d) muscular force
36. 36.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) gravity (c) friction (d) muscular force
37. 37.Which of these is caused by gravity? (a) a fridge magnet sticks (b) rain falls to the ground (c) squeezing a lemon (d) a rolling ball slows
38. 38.Which of these is caused by muscular force? (a) rain falls to the ground (b) a river flows downhill (c) squeezing a lemon (d) shoes grip the floor
39. 39.💪 Which can a force NOT do? (a) change its shape (b) change its colour (c) start it moving (d) stop it moving
40. 40.💪 A cart is pulled to the right with 70 N and to the left with 60 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left

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