# What How Long Is A Light Year

Posted on

If you are looking for the answer of what how long is a light year, you’ve got the right page. We have approximately 10 FAQ regarding what how long is a light year. Read it below.

## Assessmenttiple Choice. Choose and encircle the letter of the correct

tiple Choice. Choose and encircle the letter of the correct answer.
1. ROYGBIV is the basic component of white light. Which color of light carries the hi
frequency?
A. Green
B. Orange
C. Red
O Violet
2.
amplitude corresponds to a brighter light.
A. Higher
B. Lower
C. Smaller D. The same
3.
amplitude corresponds to a dull light.
A. Higher
B. Lower
C. Smaller D. The same
4. What do wave carry through objects?
A. Energy
B. Light
C. Sound D Water
5. Light travels through an object during
A. Reflection
B. Transmission C. Absorption D. Refraction
6. A light year
is
A. The speed light travels.
B. The distance light can travel for a year.
C. How long it takes light to get to you from the sun.
D. How many years it takes light to be emitted?​

1.A

2.C

3.D

4.B

5.B

6.C

Explanation:

Hope it hels :)))))

#Killteacher

## The world where we live today is just a small

Ask: The world where we live today is just a small part of our universe. In your
previous years, you have learned about the different theories of the origin of
the universe that eventually led to the formation of galaxies, solar system
and other heavenly bodies. This lesson will focus on one of those wonderful
things present in outer space, the stars. Although stars are millions of light
years away from us, we can still see them twinkling in the night sky. Let’s
find out how they emit light and what keeps them shining for a long time.

## Stars shine because they are extremely hot (which is why fire gives off light — because it is hot). The source of their energy is nuclear reactions going on deep inside the stars. In most stars, like our sun, hydrogen is being converted into helium, a process which gives off energy that heats the star.

Read and analyze each question then choose the letter of the correct answer. Write it
1. The moon always moves around Earth. What term is used to describe the moon?
b. minor planet
c. neighbor
2. What is the path that the moon follows as it revolved around Earth?
d. pole
b. equator
a. medium star
d. satellite
a. axis
c. orbit
3. About how long does it take the moon to complete its cycle?
a. 1 day
d. 1 year
b. 1 week
c. 1 month
4. Which of the following tells about the light of the moon?
a, reflected light from Earth
b. reflected light from the sun
C. reflected light from a planet
d. reflected light from distant star
5. What do you see when the moon is waning?
a. all of the moon
c. more of the moon
b. less of the moon
d. nothing
6. When could the New Moon phase occur? We see it when…
a. the moon is between the sun and Earth.
b. the side of the moon facing Earth is half-lighted.
c. the side of the moon facing Earth is fully lighted.
d. the side of the moon facing Earth receives less sunlight.
7. What it is called when the lighted portion of the moon appears to get larger?
a, revolving
b. rotating
c. waning
d. waxing
plsss kailangan ko na po ngayon​

1.a

2.c

3.d

4.a

5.b

6.a

7.a

## Assessment Directions: Read carefully each item. Write only the letter

1. What is the longest day of the year? A. fall equinox B. spring equinox C. summer solstice C. winter solstice
2. How long does Earth take to have a complete rotation? A. 365 days B. 368 days C. 370 days D. 375 days
3. What season when an area in which you live will tilts away from the sun? A. autumn B. spring C. summer D. winter
4. What condition causes more heat from the sunlight? A. direct B. indirect C. both A and B D. none of the above
5. Why do we experience the changing of the season on the Earth? A. rotation of the earth B. tilt of the earth C. both A and B D. none of the above
6. What splits the northern hemisphere and the Southern hemisphere? A. the Equator B. the Atlantic Ocean C. the Pacific Ocean D. none of the above
7. Which term is used to describe light that is hitting a region straight on? A. blunt sunlight B. direct sunlight C. open sunlight D. straight sunlight
8. In winter, when the northern hemisphere is getting very little direct sunlight, A. days are long B. temperatures are high C. temperatures are low D. temperatures are moderate
9. How many hours are in a day? A. 12 B. 24 C. 36 D. 48
10. Why does the equator stay warm all year long? A. Because the equator is cold all year long B. Because the climate each year does not change C. Because the direct rays hit the equator all year D. All of the above​

1. D.
2. A.
3. D.
4. A.
5. D.
6. A.
7. B.
8. C.
9. B
10. B.

sana makatulong 🙂

## The world where we live today is just a small

Ask: The world where we live today is just a small part of our universe. In your
previous years, you have learned about the different theories of the origin of
the universe that eventually led to the formation of galaxies, solar system
and other heavenly bodies. This lesson will focus on one of those wonderful
things present in outer space, the stars. Although stars are millions of light
years away from us, we can still see them twinkling in the night sky. Let’s
find out how they emit light and what keeps them shining for a long time.

The world is just a small part of our universe. a lot of space objects can be seen in the observable universe. some of which are planets, astroids and comets but, one of the most interesting parts of our universe is the stars. Stars come in various matter and sizes. some big and some small.

Explanation:

My own answer is this i just wrote what i think is what you mean even though there is no question

Read the story The Twin Paradox and answer the following questions in a separate piece of paper.
1. Armed with the knowledge that you have gained from the discussion, explain why John looked younger than Paul when the twin’s parents saw them after John’s ship landed back to Earth

2. Determine how long 1 year is in John’s ship from Paul’s perspective if John’s ship is constantly flying at 90% speed of light.

3. Paul knew from his studies that the distance from the Earth to the outer reaches of the Solar System is 4.3 light-years. What is this distance from John’s perspective?

Explanation:

eee

## 2.Determine how long 1 year is in John's ship from

Ask: 2.Determine how long 1 year is in John’s ship from Paul’s perspective if John’s ship is constantly flying at 90% speed of light.

3.Paul knew from his studies that the distance from the Earth to the outer reaches of the Solar System is 4.3 light-years. What is this distance from John’s perspective?

braunliest ko po makakasagot ng matino :)​

2. 2.29 years

3. 1.9 light-years

Explanation:

## Let’s Try (Evaluation) I. Choose the letter of the correct

7. How many years does it take a leap year to occur? a. 4 years b. 3 years c. 2 years d. 1 year 8. Why is the length of the day differ in other places around the globe? a) Because of the rotation of the earth c. Because of the tilt of the earth b) Because of the revolution of the earth d. Because of the orbit of the earth 9. At what angle would the earth receive more heat energy relative to the position

## A long time ago, man had no light except the

Ask: A long time ago, man had no light except the light from the sun and the moon. First, he learned to rub two sticks together to makw a fire and he used this as his light. He carried flaming sticks to light this way.Later, he dipped his stick into melted fat to make the light last together.

The man used the cotton-like part of a plant as wucksyfor grease lamps. In time, he learned to make better wicks and a better lamps to make candles. Then came the coal oil or kerosene lamp with a better wick and glass chimney. The chimney came into use.

The electric light is the best invention of all. All you have to do is turn it on or turn it off.
16.What is the selection mainly about?
a. where light came from
b. how the sources of light evolves
c. how man discovered light source
d. about man and his life during the primitive period
17.What is the first paragraph trying to tell us?
a. why man needs light
b. why man wanted to make light
c. how man used sticks to make light
d. how man started to make his own light
18. Is the main idea on the first paragraph stated or mentioned?
a. no
b. yes
c. maybe
d.none of the above
19 What is the main idea on the second paragraph
a.the importance of light
b. the improvement of lights sources
c. the use of light in the primitive years
d. the ways of using light in modern times
20. What is the best title for the selection?
a. The Light Sources
b. The Light and the Man
c. The Man and His Primitive Life
d. The Development of Light Sources

16.a

17.d

18.b

19.b

20.a

16. b.

17. d

18. a.

19. b.

20. d.

## analyze and compute the following quuestions 1.one night you are

Ask: analyze and compute the following quuestions

1.one night you are out looking up at the stars and an extrarrestrial spaceship flash flashes across the sky.This ship is 5o metters long and is travelling at 95 percent of the speed of light what would the ship’s lenght be when measured from your earthbound frame or reference?

2.the star alpha centa uri is 4.3 light years away.if a spacecraf could travel at speed v=0.95c. how long would an earth observer say a trip to that would it take?​