Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 92 · 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: pushing a trolley is a pull. (a) False (b) True
2. 2.Which of these is caused by gravity? (a) a compass needle turns (b) a river flows downhill (c) a magnet picks up pins (d) rubbing hands warms them
3. 3.💪 A bag has a mass of 26 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
4. 4.💪 A box weighs 140 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
5. 5.💪 Which force is at work: shoes grip the floor? (a) friction (b) gravity (c) muscular force (d) magnetic force
6. 6.True or false: plucking a mango is a pull. (a) True (b) False
7. 7.💪 A box weighs 240 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
8. 8.💪 A cart is pulled to the right with 95 N and to the left with 95 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
9. 9.Which of these is caused by friction? (a) a thrown ball comes down (b) brakes stop a bicycle (c) a river flows downhill (d) an apple falls down
10. 10.Which of these is caused by magnetic force? (a) pedalling a cycle (b) squeezing a lemon (c) rubbing hands warms them (d) a fridge magnet sticks
11. 11.💪 A bag has a mass of 21 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
12. 12.💪 Which force is at work: a river flows downhill? (a) muscular force (b) friction (c) gravity (d) magnetic force
13. 13.Which of these is caused by friction? (a) lifting a school bag (b) shoes grip the floor (c) pedalling a cycle (d) a fridge magnet sticks
14. 14.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) muscular force (c) friction (d) gravity
15. 15.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
16. 16.💪 Which can a force NOT do? (a) change its shape (b) start it moving (c) stop it moving (d) change its colour
17. 17.💪 In a tug of war, one team pulls right with 20 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
18. 18.💪 Two children push a box to the right, one with 75 N and the other with 45 N. What is the net (total) force on the box, in newtons?
19. 19.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
20. 20.💪 Two children push a box to the right, one with 25 N and the other with 10 N. What is the net (total) force on the box, in newtons?
21. 21.💪 Two children push a box to the right, one with 70 N and the other with 60 N. What is the net (total) force on the box, in newtons?
22. 22.True or false: pushing a swing is a pull. (a) True (b) False
23. 23.Which of these is caused by muscular force? (a) rain falls to the ground (b) rubbing hands warms them (c) a compass needle turns (d) pedalling a cycle
24. 24.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
25. 25.💪 A bag has a mass of 45 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
26. 26.Which of these is caused by gravity? (a) a fridge magnet sticks (b) rubbing hands warms them (c) a thrown ball comes down (d) squeezing a lemon
27. 27.💪 Which force is at work: a compass needle turns? (a) muscular force (b) gravity (c) friction (d) magnetic force
28. 28.True or false: hitting a cricket ball is a pull. (a) True (b) False
29. 29.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
30. 30.True or false: pushing a swing is a push. (a) True (b) False
31. 31.💪 A cart is pulled to the right with 50 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
32. 32.True or false: kicking a football is a pull. (a) True (b) False
33. 33.💪 In which unit do we measure force? (a) newton (N) (b) litre (L) (c) second (s) (d) metre (m)
34. 34.True or false: drawing up a well bucket is a pull. (a) True (b) False
35. 35.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
36. 36.Which of these is caused by gravity? (a) rain falls to the ground (b) lifting a school bag (c) pedalling a cycle (d) shoes grip the floor
37. 37.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) friction (c) gravity (d) magnetic force
38. 38.💪 A box weighs 540 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
39. 39.True or false: closing a drawer is a pull. (a) False (b) True
40. 40.True or false: kicking a football is a push. (a) True (b) False

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