Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 856 · 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.True or false: plucking a mango is a push. (a) True (b) False
2. 2.True or false: pulling up your socks is a push. (a) True (b) False
3. 3.True or false: a tug of war is a pull. (a) True (b) False
4. 4.💪 Which force is at work: a fridge magnet sticks? (a) magnetic force (b) gravity (c) friction (d) muscular force
5. 5.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
6. 6.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
7. 7.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
8. 8.Which of these is caused by muscular force? (a) a fridge magnet sticks (b) a magnet picks up pins (c) shoes grip the floor (d) lifting a school bag
9. 9.Which of these is caused by gravity? (a) a magnet picks up pins (b) a river flows downhill (c) a fridge magnet sticks (d) shoes grip the floor
10. 10.💪 A force is a … (a) push or a pull (b) type of sound (c) unit of time (d) kind of colour
11. 11.💪 Two children push a box to the right, one with 95 N and the other with 5 N. What is the net (total) force on the box, in newtons?
12. 12.💪 In which unit do we measure force? (a) metre (m) (b) newton (N) (c) litre (L) (d) second (s)
13. 13.💪 Which can a force NOT do? (a) start it moving (b) stop it moving (c) change its colour (d) change its shape
14. 14.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
15. 15.💪 Which force pulls everything towards the Earth? (a) wind (b) magnetism (c) gravity (d) friction
16. 16.Which of these is caused by friction? (a) rain falls to the ground (b) a thrown ball comes down (c) brakes stop a bicycle (d) squeezing a lemon
17. 17.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
18. 18.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) pedalling a cycle (c) a rolling ball slows (d) a river flows downhill
19. 19.💪 In a tug of war, one team pulls right with 30 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
20. 20.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
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) to the left (c) no net force
22. 22.Which of these is caused by friction? (a) squeezing a lemon (b) shoes grip the floor (c) pedalling a cycle (d) a fridge magnet sticks
23. 23.True or false: drawing up a well bucket is a push. (a) True (b) False
24. 24.Which of these is caused by magnetic force? (a) lifting a school bag (b) a river flows downhill (c) rubbing hands warms them (d) a magnet picks up pins
25. 25.True or false: a tug of war is a push. (a) False (b) True
26. 26.💪 In a tug of war, one team pulls right with 20 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
27. 27.💪 A box weighs 140 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
28. 28.💪 A bag has a mass of 53 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
29. 29.True or false: closing a drawer is a pull. (a) True (b) False
30. 30.True or false: kicking a football is a pull. (a) True (b) False
31. 31.💪 Two children push a box to the right, one with 20 N and the other with 40 N. What is the net (total) force on the box, in newtons?
32. 32.💪 In a tug of war, one team pulls left with 20 N and the other pulls right with 15 N. What is the size of the net force, in newtons?
33. 33.💪 In a tug of war, one team pulls left with 75 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
34. 34.True or false: pressing a doorbell is a pull. (a) True (b) False
35. 35.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
36. 36.💪 Which force is at work: rubbing hands warms them? (a) muscular force (b) gravity (c) magnetic force (d) friction
37. 37.💪 Which force is at work: squeezing a lemon? (a) magnetic force (b) muscular force (c) friction (d) gravity
38. 38.💪 A cart is pulled to the right with 65 N and to the left with 55 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
39. 39.Which of these is caused by friction? (a) rain falls to the ground (b) a magnet picks up pins (c) a compass needle turns (d) rubbing hands warms them
40. 40.💪 A cart is pulled to the right with 70 N and to the left with 65 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force

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