question: The aspect ratio of an image describes the proportional relationship between its width and its height. It is commonly expressed as two numbers separated by a colon, as in "16:9". For an "x":"y" aspect ratio, no matter how big or small the image is, if the width is divided into "x" units of equal length and the height is measured using this same length unit, the height will be measured to be "y" units. 

In, for example, a group of images that all have an aspect ratio of 16:9, one image might be 16 inches wide and 9 inches high, another 16 centimeters wide and 9 centimeters high, and a third might be 8 yards wide and 4.5 yards high. 

The most common aspect ratios used today in the presentation of films in cinemas are 1.85:1 and 2.39:1. Two common videographic aspect ratios are 4:3 (1.3:1), the universal video format of the 20th century, and (1.7:1), universal for high-definition television and European digital television. Other cinema and video aspect ratios exist, but are used infrequently. 

In still camera photography, the most common aspect ratios are 4:3, 3:2, and more recently being found in consumer cameras 16:9. Other aspect ratios, such as 5:3, 5:4, and 1:1 (square format), are used in photography as well, particularly in medium format and large format.
1. what is a common ratio used in films?
2. is there one for camera photography?
3. what is it?
4. any others used?
5. what?
6. What does aspect ratio do?
7. how would you express this?
8. does x stand for height?
9. what does it stand for?
10. Does Y stand for circumfrence?
11. what does it stand for?
12. what is the aspect ratio for the universal video format?
13. for the 19th century?
14. what century?
15. what is the aspect ratio for high def tv?
16. are there different aspect ratios used in camera photography with different formats?
17. what seperates the two numbers?
****
answer: 1. 1.85:1
2. yes
3. 4:3
4. yes
5. 3:2, 16:9, 5:3, 5:4, and 1:1
6. describes the proportional relationship between its width and its height.
7. two numbers separated by a colon
8. no
9. the width
10. no
11. the height
12. 4:3 (1.3:1)
13. no
14. 20th
15. (1.7:1)
16. yes
17. a colon

Do you help with chores at home? These are what some people say about it. Manuel, 19: "I only like to do the laundry. My mom does the other chores. When she isn't at home, I can cook an easy dinner myself, but please don't ask me whether I'm a good cook or not. " Vivian, 38: "I do everything because I live by myself now. I think I can do everything because I watched and helped my mom cook our family meals all the time when I was young. At first I was told to help my mom, but later I began to like cooking. Now I can cook many kinds of dishes. " Arthur, 67: "I do many things around the house because everyday is like Sunday for me now. I have to do something to keep busy. I help with gardening and cleaning the most. I enjoy doing these things. Cooking and laundry are my wife's chores. " What are the answers to this following set of questions: 1. Who lives alone?
2. How old is she?
3. Who taught her to cook?
4. Does she enjoy it?
5. What is she able to make?
6. Does Arthur cook?
7. Who does?
8. What else does she do?
9. What does Arthur prefer to do?
10. Is Manuel a skilled cook?
11. Who normally cooks for him?
12. How many chores does he prefer to do?
13. What is it?
14. How old is he?
15. Is he the youngest person interviewed?
16. Who is the oldest?
17. At what age?
18. Is Vivian the only person interviewed who lives alone?
19. How old is she?
20. Who forces themself to keep busy?
Answer: 1. Vivian
2. 38
3. her mom
4. yes
5. many kinds of dishes
6. unknown
7. his wife
8. laundry
9. gardening and cleaning
10. no
11. his mom
12. one
13. laundry.
14. 19
15. yes
16. Arthur
17. 67
18. yes
19. 38
20. Arthur

input: Make use of the article to answer the questions. In physics, energy is a property of objects which can be transferred to other objects or converted into different forms. The "ability of a system to perform work" is a common description, but it is difficult to give one single comprehensive definition of energy because of its many forms. For instance, in SI units, energy is measured in joules, and one joule is defined "mechanically", being the energy transferred to an object by the mechanical work of moving it a distance of 1 metre against a force of 1 newton.[note 1] However, there are many other definitions of energy, depending on the context, such as thermal energy, radiant energy, electromagnetic, nuclear, etc., where definitions are derived that are the most convenient. 

Common energy forms include the kinetic energy of a moving object, the potential energy stored by an object's position in a force field (gravitational, electric or magnetic), the elastic energy stored by stretching solid objects, the chemical energy released when a fuel burns, the radiant energy carried by light, and the thermal energy due to an object's temperature. All of the many forms of energy are convertible to other kinds of energy. In Newtonian physics, there is a universal law of conservation of energy which says that energy can be neither created nor be destroyed; however, it can change from one form to another. 1. What is a common definition of energy?
2. How is it defined in physics?
3. Are there many forms of energy?
4. what are some kinds of energy?
5. What are some comon kinds of energy?
6. can one form be transformed into another?
7. Can it be made?
8. can it be destroyed?
9. are there different ways of measuring it?
10. what is one way?
11. what is a joule?
12. Is there a single way of defining it?
13. How are different meanings contrived?
14. what is radiant energy?
15. What is potential energy?
16. Are there more than one kind of force field?
17. how many?
18. what are they?
19. what comes from burning?
20. What kind of energy comes from a thing's temperature?
numbered_answers:
1. the ability of a system to do work
2. a property of objects which can be transferred or converted
3. yes
4. thermal, radiant, nuclear, electromagnetic
5. kinetic, potential, elastic, chemical, therma;, radiant
6. yes
7. no
8. no
9. yes
10. in joules
11. a measure of energy transfer
12. no
13. it depends on the context
14. energy in light
15. the energy stored by an object in a force field
16. yes
17. three
18. gravitational, electric, magnetic
19. chemical energy
20. thermal