Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 129 · 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 bag has a mass of 39 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
2. 2.💪 A bag has a mass of 13 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
3. 3.True or false: pushing a swing is a pull. (a) True (b) False
4. 4.💪 In which unit do we measure force? (a) metre (m) (b) litre (L) (c) newton (N) (d) second (s)
5. 5.💪 A force is a … (a) kind of colour (b) type of sound (c) unit of time (d) push or a pull
6. 6.Which of these is caused by magnetic force? (a) rain falls to the ground (b) a compass needle turns (c) a rolling ball slows (d) lifting a school bag
7. 7.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) a compass needle turns (c) rubbing hands warms them (d) squeezing a lemon
8. 8.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
9. 9.💪 In a tug of war, one team pulls left with 65 N and the other pulls right with 20 N. What is the size of the net force, in newtons?
10. 10.💪 Two children push a box to the right, one with 85 N and the other with 35 N. What is the net (total) force on the box, in newtons?
11. 11.💪 Which force is at work: rubbing hands warms them? (a) muscular force (b) friction (c) gravity (d) magnetic force
12. 12.💪 Two children push a box to the right, one with 65 N and the other with 65 N. What is the net (total) force on the box, in newtons?
13. 13.Which of these is caused by magnetic force? (a) a magnet picks up pins (b) shoes grip the floor (c) a thrown ball comes down (d) a river flows downhill
14. 14.💪 Which force pulls everything towards the Earth? (a) wind (b) gravity (c) friction (d) magnetism
15. 15.True or false: kicking a football is a push. (a) True (b) False
16. 16.Which of these is caused by muscular force? (a) lifting a school bag (b) a river flows downhill (c) a compass needle turns (d) rain falls to the ground
17. 17.💪 A cart is pulled to the right with 70 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
18. 18.💪 A bag has a mass of 50 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
19. 19.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
20. 20.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
21. 21.💪 Is plucking a mango a push or a pull? (a) a pull (b) a push
22. 22.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
23. 23.💪 Two children push a box to the right, one with 80 N and the other with 25 N. What is the net (total) force on the box, in newtons?
24. 24.True or false: closing a drawer is a pull. (a) True (b) False
25. 25.💪 Which can a force NOT do? (a) start it moving (b) change its shape (c) change its colour (d) stop it moving
26. 26.Which of these is caused by friction? (a) rubbing hands warms them (b) a magnet picks up pins (c) a fridge magnet sticks (d) an apple falls down
27. 27.💪 A box weighs 130 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
28. 28.💪 Which force is at work: brakes stop a bicycle? (a) muscular force (b) gravity (c) friction (d) magnetic force
29. 29.💪 Two children push a box to the right, one with 95 N and the other with 95 N. What is the net (total) force on the box, in newtons?
30. 30.💪 Two children push a box to the right, one with 65 N and the other with 100 N. What is the net (total) force on the box, in newtons?
31. 31.True or false: pushing a trolley is a push. (a) False (b) True
32. 32.Which of these is caused by gravity? (a) rain falls to the ground (b) a compass needle turns (c) a magnet picks up pins (d) shoes grip the floor
33. 33.💪 Which force is at work: lifting a school bag? (a) friction (b) muscular force (c) magnetic force (d) gravity
34. 34.💪 A cart is pulled to the right with 20 N and to the left with 25 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
35. 35.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
36. 36.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
37. 37.💪 A cart is pulled to the right with 85 N and to the left with 70 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
38. 38.💪 In a tug of war, one team pulls right with 70 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
39. 39.💪 Two children push a box to the right, one with 20 N and the other with 75 N. What is the net (total) force on the box, in newtons?
40. 40.💪 Which force is at work: a compass needle turns? (a) friction (b) gravity (c) muscular force (d) magnetic force

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