Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 175 · 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 right with 50 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
2. 2.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) muscular force (c) friction (d) magnetic force
3. 3.True or false: pushing a swing is a pull. (a) False (b) True
4. 4.True or false: a tug of war is a push. (a) True (b) False
5. 5.True or false: kicking a football is a pull. (a) False (b) True
6. 6.💪 A box weighs 30 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
7. 7.💪 A force is a … (a) push or a pull (b) unit of time (c) kind of colour (d) type of sound
8. 8.💪 In which unit do we measure force? (a) litre (L) (b) newton (N) (c) second (s) (d) metre (m)
9. 9.💪 A bag has a mass of 20 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
10. 10.💪 Which force is at work: lifting a school bag? (a) muscular force (b) gravity (c) friction (d) magnetic force
11. 11.💪 Which force is at work: brakes stop a bicycle? (a) muscular force (b) gravity (c) magnetic force (d) friction
12. 12.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
13. 13.Which of these is caused by friction? (a) brakes stop a bicycle (b) a river flows downhill (c) a thrown ball comes down (d) an apple falls down
14. 14.💪 Which can a force NOT do? (a) change its shape (b) start it moving (c) change its colour (d) stop it moving
15. 15.True or false: drawing up a well bucket is a push. (a) True (b) False
16. 16.Which of these is caused by muscular force? (a) rain falls to the ground (b) rubbing hands warms them (c) a thrown ball comes down (d) squeezing a lemon
17. 17.💪 Is opening a drawer a push or a pull? (a) a pull (b) a push
18. 18.💪 Which force is at work: a rolling ball slows? (a) gravity (b) magnetic force (c) muscular force (d) friction
19. 19.💪 A box weighs 380 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
20. 20.💪 A box weighs 520 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
21. 21.Which of these is caused by muscular force? (a) a thrown ball comes down (b) lifting a school bag (c) rubbing hands warms them (d) a fridge magnet sticks
22. 22.💪 A box weighs 360 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
23. 23.💪 Which force pulls everything towards the Earth? (a) magnetism (b) friction (c) gravity (d) wind
24. 24.True or false: pushing a trolley is a pull. (a) False (b) True
25. 25.Which of these is caused by gravity? (a) a river flows downhill (b) squeezing a lemon (c) shoes grip the floor (d) rubbing hands warms them
26. 26.True or false: opening a drawer is a pull. (a) True (b) False
27. 27.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
28. 28.Which of these is caused by muscular force? (a) pedalling a cycle (b) an apple falls down (c) a fridge magnet sticks (d) shoes grip the floor
29. 29.Which of these is caused by magnetic force? (a) a fridge magnet sticks (b) rain falls to the ground (c) lifting a school bag (d) a rolling ball slows
30. 30.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
31. 31.💪 A box weighs 150 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
32. 32.💪 Two children push a box to the right, one with 100 N and the other with 50 N. What is the net (total) force on the box, in newtons?
33. 33.💪 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?
34. 34.💪 A bag has a mass of 2 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
35. 35.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
36. 36.💪 Two children push a box to the right, one with 15 N and the other with 55 N. What is the net (total) force on the box, in newtons?
37. 37.True or false: kicking a football is a push. (a) True (b) False
38. 38.💪 A box weighs 50 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
39. 39.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
40. 40.💪 Which force is at work: squeezing a lemon? (a) gravity (b) friction (c) muscular force (d) magnetic force

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