Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 310 · 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.Which of these is caused by muscular force? (a) a magnet picks up pins (b) pedalling a cycle (c) a river flows downhill (d) brakes stop a bicycle
2. 2.True or false: pulling a cart is a pull. (a) False (b) True
3. 3.💪 A force is a … (a) type of sound (b) unit of time (c) push or a pull (d) kind of colour
4. 4.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) magnetic force (c) gravity (d) friction
5. 5.Which of these is caused by friction? (a) an apple falls down (b) rain falls to the ground (c) brakes stop a bicycle (d) a river flows downhill
6. 6.Which of these is caused by magnetic force? (a) pedalling a cycle (b) a fridge magnet sticks (c) a rolling ball slows (d) lifting a school bag
7. 7.💪 Which force pulls everything towards the Earth? (a) magnetism (b) friction (c) gravity (d) wind
8. 8.💪 Is drawing up a well bucket a push or a pull? (a) a push (b) a pull
9. 9.Which of these is caused by friction? (a) a thrown ball comes down (b) rain falls to the ground (c) an apple falls down (d) rubbing hands warms them
10. 10.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 compass needle turns
11. 11.💪 A cart is pulled to the right with 45 N and to the left with 40 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
12. 12.💪 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?
13. 13.💪 Which force is at work: a river flows downhill? (a) gravity (b) muscular force (c) magnetic force (d) friction
14. 14.💪 Is pulling up your socks a push or a pull? (a) a push (b) a pull
15. 15.True or false: pulling up your socks is a pull. (a) False (b) True
16. 16.💪 In which unit do we measure force? (a) newton (N) (b) metre (m) (c) second (s) (d) litre (L)
17. 17.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
18. 18.True or false: pulling up your socks is a push. (a) True (b) False
19. 19.💪 In a tug of war, one team pulls left with 100 N and the other pulls right with 55 N. What is the size of the net force, in newtons?
20. 20.💪 A cart is pulled to the right with 55 N and to the left with 40 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
21. 21.Which of these is caused by friction? (a) a river flows downhill (b) shoes grip the floor (c) a thrown ball comes down (d) a magnet picks up pins
22. 22.💪 In a tug of war, one team pulls right with 100 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
23. 23.💪 A box weighs 150 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
24. 24.Which of these is caused by gravity? (a) a river flows downhill (b) shoes grip the floor (c) a compass needle turns (d) brakes stop a bicycle
25. 25.True or false: closing a drawer is a pull. (a) True (b) False
26. 26.True or false: kicking a football is a push. (a) False (b) True
27. 27.💪 A bag has a mass of 17 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
28. 28.💪 In a tug of war, one team pulls right with 75 N and the other pulls left with 50 N. What is the size of the net force, in newtons?
29. 29.💪 Two children push a box to the right, one with 15 N and the other with 25 N. What is the net (total) force on the box, in newtons?
30. 30.Which of these is caused by gravity? (a) a thrown ball comes down (b) a magnet picks up pins (c) shoes grip the floor (d) a fridge magnet sticks
31. 31.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
32. 32.💪 A bag has a mass of 42 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
33. 33.💪 A cart is pulled to the right with 95 N and to the left with 105 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
34. 34.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) unbalanced (c) balanced (d) gravity
35. 35.💪 A bag has a mass of 28 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
36. 36.💪 Which can a force NOT do? (a) change its shape (b) start it moving (c) stop it moving (d) change its colour
37. 37.💪 A box weighs 390 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
38. 38.💪 Which force is at work: lifting a school bag? (a) magnetic force (b) muscular force (c) gravity (d) friction
39. 39.💪 Two children push a box to the right, one with 75 N and the other with 10 N. What is the net (total) force on the box, in newtons?
40. 40.💪 Two children push a box to the right, one with 5 N and the other with 60 N. What is the net (total) force on the box, in newtons?

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