Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 121 · 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.💪 In a tug of war, one team pulls left with 75 N and the other pulls right with 30 N. What is the size of the net force, in newtons?
2. 2.True or false: a tug of war is a pull. (a) True (b) False
3. 3.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
4. 4.Which of these is caused by friction? (a) a compass needle turns (b) rubbing hands warms them (c) a magnet picks up pins (d) a river flows downhill
5. 5.True or false: opening a drawer is a push. (a) True (b) False
6. 6.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
7. 7.True or false: hitting a cricket ball is a push. (a) True (b) False
8. 8.Which of these is caused by gravity? (a) squeezing a lemon (b) pedalling a cycle (c) a river flows downhill (d) brakes stop a bicycle
9. 9.True or false: closing a drawer is a push. (a) False (b) True
10. 10.Which of these is caused by friction? (a) a thrown ball comes down (b) an apple falls down (c) a rolling ball slows (d) rain falls to the ground
11. 11.💪 A bag has a mass of 24 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
12. 12.💪 In a tug of war, one team pulls right with 65 N and the other pulls left with 35 N. What is the size of the net force, in newtons?
13. 13.True or false: pulling up your socks is a push. (a) False (b) True
14. 14.Which of these is caused by gravity? (a) pedalling a cycle (b) rubbing hands warms them (c) a thrown ball comes down (d) shoes grip the floor
15. 15.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) friction (c) gravity (d) muscular force
16. 16.💪 In a tug of war, one team pulls right with 50 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
17. 17.💪 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?
18. 18.Which of these is caused by magnetic force? (a) a thrown ball comes down (b) rain falls to the ground (c) lifting a school bag (d) a magnet picks up pins
19. 19.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) balanced (c) unbalanced (d) gravity
20. 20.💪 Two children push a box to the right, one with 55 N and the other with 40 N. What is the net (total) force on the box, in newtons?
21. 21.True or false: drawing up a well bucket is a push. (a) True (b) False
22. 22.True or false: hitting a cricket ball is a pull. (a) True (b) False
23. 23.True or false: a tug of war is a push. (a) False (b) True
24. 24.Which of these is caused by friction? (a) a magnet picks up pins (b) a thrown ball comes down (c) brakes stop a bicycle (d) a compass needle turns
25. 25.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) gravity (c) friction (d) magnetic force
26. 26.💪 A box weighs 530 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
27. 27.💪 A bag has a mass of 60 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
28. 28.True or false: pulling a cart is a push. (a) True (b) False
29. 29.💪 Which force is at work: squeezing a lemon? (a) magnetic force (b) gravity (c) friction (d) muscular force
30. 30.💪 A cart is pulled to the right with 55 N and to the left with 60 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
31. 31.💪 Which force is at work: a river flows downhill? (a) gravity (b) magnetic force (c) friction (d) muscular force
32. 32.True or false: pulling a cart is a pull. (a) True (b) False
33. 33.💪 A cart is pulled to the right with 45 N and to the left with 50 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
34. 34.Which of these is caused by muscular force? (a) squeezing a lemon (b) a rolling ball slows (c) a compass needle turns (d) rubbing hands warms them
35. 35.💪 Which can a force NOT do? (a) stop it moving (b) start it moving (c) change its shape (d) change its colour
36. 36.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
37. 37.💪 In which unit do we measure force? (a) second (s) (b) metre (m) (c) litre (L) (d) newton (N)
38. 38.💪 Which force is at work: brakes stop a bicycle? (a) muscular force (b) friction (c) gravity (d) magnetic force
39. 39.Which of these is caused by muscular force? (a) shoes grip the floor (b) a magnet picks up pins (c) a fridge magnet sticks (d) lifting a school bag
40. 40.True or false: closing a drawer is a pull. (a) True (b) False

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