QUESTION 1 The type of energy a star radiates is related to its 2 points QUESTIO

Question

QUESTION 1 The type of energy a star radiates is related to its 2 points QUESTION 2 When the moon's shadow falls on the Earth an eclipse of theoccurs. 2 points QUESTION 3 Most are irregularly shaped clouds of gas, dust, and other particles in space. 2 points QUESTION 4 Visible light and radio waves are examples of 2 points QUESTION 5 A planet moves away from the sun. when it nears the sun and when it 4 points QUESTION 6 A star moving away from Earth experiences a light. in its emitted wavelengths of 2 points QUESTION 7 Our sun is referred to asa colored type of star.

Explanation / Answer

Question 1: The type of energy a star radiates is realted to its ____

Answer: Surface temperature

Explanation: The energy emitted by a star is massive and is considered as perfect radiator like its surface temperature.

Question 2: When the moon's shadow falls on the earth an eclipse of the _____ occurs?

Answer: SOLAR ECLIPSE

Explanation: During Solar eclipse Earth passes through the moon's shadow and moon passes directly between the sun and earth.

Question 3: Most ______ are irregularly shaped clouds of gas, dust and other particles in space.

Answer: Dust grains in Interstellar regions

Explanation: The Interstellar regions consists of 99% of gas and dust and the dust grains are irregularly shaped.

Question 4: Visible light and radio waves are examples of ____

Answer: Electromagnetic radiation.

Explanation: Light, radio waves, cell phone transmissions and X-rays are the examples of Electromagnetic radiation which is the movement of energy through space or medium, composed of both electric and magnetic waves.

Question 5: A planet ____ when it nears the sun and ____ when it moves away from the sun

Answer: Moves faster, moves slower

Explanation: A planet orbital speed changes depending on how far it is from sun because of sun's gravitational pull.

Question 6: A star moving away from earth experiences a ___ in its emitted wavelengths of light.

Answer: Waves are stretched.

Explanation: When a star is moving away from earth the waves are effectively stretched increasing their wavelength.

Question 7: Our sun is referred to as ____ coloured type of star

Answer: White

Explanation: Basically cooler stars(3000 Kelvin) are actually red and cooler stars(10000 Kelvin) look blue. Sun is white because it is 5800 Kelvin.

Question 8. The hottest stars are ____ in colour

Answer: Blue

Explanation: The hottest stars can easily get above 1000 Kelvin and they look blue. Example: Rigel

Question 9: Yellow giants can form from both ____ mass stars

Answer: Intermediate mass stars and High mass stars

Explanation: The yellow giants are really very rare compared to red giants and can be formed from both intermediate and high mass stars.

Question 10: Most stars on the HR diagram are found along a diagonal belt called the ____

Answer: Main sequence

Explanation: In the Hertzsprung Russell diagram most stars are located on a diagonal curve or belt which is called the main sequence, which is a continuous and distinctive band of stars.

Question 11. Our solar system is located within a ____ type of galaxy

Answer: Milky way galaxy (SPIRAL GALAXY)

Explanation: Our solar system is located in the outmost reaches of Milky way galaxy, which is also a spiral galaxy and consists of 200 billion stars.

Question 12: Elliptical galaxies are composed of mostly ____ stars

Answer: Older and low-mass stars

Explanation: Most of the stars in elliptical galaxy are Older and they make up only a smaller portion of the visible galaxies.

Question 13: A ____ occurs when a high mass star explodes

Answer: Supernova explosion

Explanation: A high mass star explodes and collapse themselves and form a black hole after supernova explosion.

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