Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 977 · 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 cart is pulled to the right with 25 N and to the left with 20 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
2. 2.Which of these is caused by magnetic force? (a) a compass needle turns (b) brakes stop a bicycle (c) squeezing a lemon (d) rubbing hands warms them
3. 3.💪 A box weighs 580 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
4. 4.💪 Is pushing a swing a push or a pull? (a) a push (b) a pull
5. 5.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
6. 6.Which of these is caused by friction? (a) a magnet picks up pins (b) rain falls to the ground (c) a rolling ball slows (d) an apple falls down
7. 7.True or false: closing a drawer is a push. (a) False (b) True
8. 8.💪 Which can a force NOT do? (a) change its shape (b) stop it moving (c) start it moving (d) change its colour
9. 9.💪 A box weighs 350 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
10. 10.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) balanced (c) gravity (d) doubled
11. 11.💪 A box weighs 600 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
12. 12.💪 A cart is pulled to the right with 35 N and to the left with 30 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
13. 13.💪 A bag has a mass of 20 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
14. 14.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
15. 15.💪 Is closing a drawer a push or a pull? (a) a pull (b) a push
16. 16.💪 Which force pulls everything towards the Earth? (a) magnetism (b) wind (c) gravity (d) friction
17. 17.💪 A box weighs 470 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
18. 18.Which of these is caused by muscular force? (a) lifting a school bag (b) a fridge magnet sticks (c) brakes stop a bicycle (d) a river flows downhill
19. 19.💪 Is drawing up a well bucket a push or a pull? (a) a pull (b) a push
20. 20.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
21. 21.💪 A bag has a mass of 36 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
22. 22.True or false: a tug of war is a pull. (a) False (b) True
23. 23.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) magnetic force (c) friction (d) gravity
24. 24.True or false: pushing a trolley is a pull. (a) False (b) True
25. 25.True or false: pulling a cart is a pull. (a) False (b) True
26. 26.💪 Two children push a box to the right, one with 10 N and the other with 80 N. What is the net (total) force on the box, in newtons?
27. 27.True or false: pulling a cart is a push. (a) True (b) False
28. 28.True or false: hitting a cricket ball is a push. (a) False (b) True
29. 29.💪 Which force is at work: lifting a school bag? (a) friction (b) gravity (c) muscular force (d) magnetic force
30. 30.💪 Which force is at work: squeezing a lemon? (a) friction (b) magnetic force (c) muscular force (d) gravity
31. 31.💪 Which force is at work: a magnet picks up pins? (a) friction (b) muscular force (c) gravity (d) magnetic force
32. 32.Which of these is caused by magnetic force? (a) shoes grip the floor (b) pedalling a cycle (c) a fridge magnet sticks (d) brakes stop a bicycle
33. 33.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) a thrown ball comes down (c) a magnet picks up pins (d) lifting a school bag
34. 34.💪 Two children push a box to the right, one with 100 N and the other with 25 N. What is the net (total) force on the box, in newtons?
35. 35.💪 Which force is at work: pedalling a cycle? (a) gravity (b) muscular force (c) friction (d) magnetic force
36. 36.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) magnetic force (c) friction (d) gravity
37. 37.💪 In which unit do we measure force? (a) newton (N) (b) litre (L) (c) second (s) (d) metre (m)
38. 38.True or false: kicking a football is a push. (a) True (b) False
39. 39.💪 A force is a … (a) kind of colour (b) unit of time (c) push or a pull (d) type of sound
40. 40.💪 Which force is at work: an apple falls down? (a) gravity (b) muscular force (c) friction (d) magnetic force

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