Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 455 · 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 bag has a mass of 21 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
2. 2.Which of these is caused by muscular force? (a) a thrown ball comes down (b) a compass needle turns (c) squeezing a lemon (d) brakes stop a bicycle
3. 3.💪 Which force is at work: squeezing a lemon? (a) friction (b) magnetic force (c) muscular force (d) gravity
4. 4.Which of these is caused by gravity? (a) a fridge magnet sticks (b) rubbing hands warms them (c) a thrown ball comes down (d) shoes grip the floor
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 60 N and to the left with 60 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
7. 7.True or false: pushing a trolley is a pull. (a) False (b) True
8. 8.💪 Which force is at work: a compass needle turns? (a) friction (b) magnetic force (c) muscular force (d) gravity
9. 9.💪 Which force is at work: brakes stop a bicycle? (a) muscular force (b) gravity (c) magnetic force (d) friction
10. 10.Which of these is caused by magnetic force? (a) shoes grip the floor (b) a fridge magnet sticks (c) a rolling ball slows (d) an apple falls down
11. 11.💪 A box weighs 290 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
12. 12.💪 A box weighs 470 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
13. 13.💪 In a tug of war, one team pulls right with 10 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
14. 14.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
15. 15.💪 Which can a force NOT do? (a) start it moving (b) change its colour (c) stop it moving (d) change its shape
16. 16.💪 A cart is pulled to the right with 50 N and to the left with 50 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
17. 17.True or false: pressing a doorbell is a pull. (a) True (b) False
18. 18.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
19. 19.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
20. 20.💪 Which force is at work: pedalling a cycle? (a) muscular force (b) magnetic force (c) gravity (d) friction
21. 21.💪 A cart is pulled to the right with 90 N and to the left with 85 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
22. 22.True or false: a tug of war is a push. (a) True (b) False
23. 23.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
24. 24.💪 In which unit do we measure force? (a) second (s) (b) metre (m) (c) litre (L) (d) newton (N)
25. 25.Which of these is caused by gravity? (a) a river flows downhill (b) brakes stop a bicycle (c) shoes grip the floor (d) rubbing hands warms them
26. 26.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
27. 27.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) gravity (c) doubled (d) balanced
28. 28.True or false: closing a drawer is a pull. (a) False (b) True
29. 29.💪 Which force is at work: an apple falls down? (a) muscular force (b) friction (c) magnetic force (d) gravity
30. 30.💪 A bag has a mass of 15 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
31. 31.💪 Which force is at work: shoes grip the floor? (a) gravity (b) muscular force (c) magnetic force (d) friction
32. 32.💪 A box weighs 130 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
33. 33.Which of these is caused by muscular force? (a) rain falls to the ground (b) a fridge magnet sticks (c) a magnet picks up pins (d) lifting a school bag
34. 34.Which of these is caused by friction? (a) rain falls to the ground (b) brakes stop a bicycle (c) a thrown ball comes down (d) a river flows downhill
35. 35.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) magnetic force (c) gravity (d) friction
36. 36.💪 Which force pulls everything towards the Earth? (a) friction (b) wind (c) gravity (d) magnetism
37. 37.💪 Which force is at work: a magnet picks up pins? (a) magnetic force (b) gravity (c) friction (d) muscular force
38. 38.Which of these is caused by gravity? (a) a rolling ball slows (b) a magnet picks up pins (c) a fridge magnet sticks (d) rain falls to the ground
39. 39.True or false: kicking a football is a push. (a) False (b) True
40. 40.💪 A box weighs 200 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?

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