Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 346 · 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 30 N and to the left with 25 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
2. 2.💪 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?
3. 3.💪 Which force is at work: a rolling ball slows? (a) friction (b) muscular force (c) magnetic force (d) gravity
4. 4.💪 In a tug of war, one team pulls left with 90 N and the other pulls right with 85 N. What is the size of the net force, in newtons?
5. 5.💪 Which force is at work: pedalling a cycle? (a) friction (b) gravity (c) muscular force (d) magnetic force
6. 6.💪 In a tug of war, one team pulls left with 100 N and the other pulls right with 95 N. What is the size of the net force, in newtons?
7. 7.💪 A box weighs 470 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
8. 8.True or false: hitting a cricket ball is a pull. (a) False (b) True
9. 9.Which of these is caused by gravity? (a) a thrown ball comes down (b) pedalling a cycle (c) lifting a school bag (d) a compass needle turns
10. 10.Which of these is caused by gravity? (a) brakes stop a bicycle (b) rubbing hands warms them (c) shoes grip the floor (d) an apple falls down
11. 11.💪 Which force is at work: brakes stop a bicycle? (a) gravity (b) friction (c) muscular force (d) magnetic force
12. 12.Which of these is caused by friction? (a) a rolling ball slows (b) a magnet picks up pins (c) a compass needle turns (d) a river flows downhill
13. 13.True or false: kicking a football is a push. (a) False (b) True
14. 14.💪 Which force pulls everything towards the Earth? (a) gravity (b) magnetism (c) friction (d) wind
15. 15.Which of these is caused by gravity? (a) rubbing hands warms them (b) a fridge magnet sticks (c) pedalling a cycle (d) rain falls to the ground
16. 16.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
17. 17.💪 Which can a force NOT do? (a) start it moving (b) stop it moving (c) change its colour (d) change its shape
18. 18.💪 Which force is at work: a thrown ball comes down? (a) friction (b) gravity (c) muscular force (d) magnetic force
19. 19.True or false: closing a drawer is a push. (a) False (b) True
20. 20.💪 A force is a … (a) push or a pull (b) unit of time (c) type of sound (d) kind of colour
21. 21.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
22. 22.Which of these is caused by magnetic force? (a) rubbing hands warms them (b) a fridge magnet sticks (c) shoes grip the floor (d) a thrown ball comes down
23. 23.💪 A bag has a mass of 60 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
24. 24.True or false: opening a drawer is a push. (a) False (b) True
25. 25.Which of these is caused by magnetic force? (a) a rolling ball slows (b) an apple falls down (c) pedalling a cycle (d) a compass needle turns
26. 26.Which of these is caused by muscular force? (a) an apple falls down (b) lifting a school bag (c) a compass needle turns (d) a fridge magnet sticks
27. 27.True or false: closing a drawer is a pull. (a) False (b) True
28. 28.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
29. 29.💪 A box weighs 210 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
30. 30.Which of these is caused by gravity? (a) squeezing a lemon (b) a rolling ball slows (c) pedalling a cycle (d) a river flows downhill
31. 31.💪 In a tug of war, one team pulls right with 80 N and the other pulls left with 55 N. What is the size of the net force, in newtons?
32. 32.💪 A box weighs 370 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
33. 33.💪 In which unit do we measure force? (a) second (s) (b) metre (m) (c) newton (N) (d) litre (L)
34. 34.💪 A bag has a mass of 37 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
35. 35.True or false: kicking a football is a pull. (a) True (b) False
36. 36.💪 A cart is pulled to the right with 80 N and to the left with 75 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
37. 37.💪 Two children push a box to the right, one with 5 N and the other with 40 N. What is the net (total) force on the box, in newtons?
38. 38.💪 A cart is pulled to the right with 20 N and to the left with 35 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
39. 39.True or false: pulling a cart is a push. (a) True (b) False
40. 40.💪 Which force is at work: rubbing hands warms them? (a) friction (b) muscular force (c) gravity (d) magnetic force

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