IA #1 REVIEW

What describes a galaxy?

• a cloud of gas that is the birthplace of stars

• a system of billions of stars, gas, planets, and dust held together by gravity

• a ball of plasma

How long does it take for the moon to complete one full cycle of phases?

• 25 days

• 31 days

• 27 days

• about 28 days

Tags

NGSS.MS-ESS1-1

What are the four main moon phases?

• waxing crescent, waxing gibbous, waning crescent, and waning gibbous

• new moon, first quarter, full moon, and third quarter

• half moon, gibbous moon, crescent moon, and full moon

• new moon, half moon, gibbous moon, and crescent moon

Tags

NGSS.MS-ESS1-1

What causes the change in seasons on Earth?

• The distance from the Sun

• The rotation of the Earth

• The presence of clouds

• The tilt of the Earth's axis

Tags

NGSS.MS-ESS1-1

What is the tilt of Earth's axis responsible for?

• changing seasons

• day and night cycle

• ocean tides

• moon phases

Tags

NGSS.MS-ESS1-1

What are the two solstices in a year?

• spring solstice and autumn solstice

• equinox and solstice

• daylight saving time and standard time

• summer solstice and winter solstice

Tags

NGSS.MS-ESS1-1

What is an HR diagram used for in astronomy?

• An HR diagram is used to study the composition of stars.

• An HR diagram is used to predict the lifespan of stars.

• An HR diagram is used to measure the distance between stars.

• An HR diagram is used to plot the luminosity and temperature of stars.

What are the main characteristics of a main sequence star?

• Explosive fusion of hydrogen into helium in their cores, erratic energy output, expanding size and temperature

• Stable fusion of hydrogen into helium in their cores, steady energy output, stable size and temperature

• No fusion of hydrogen into helium in their cores, no energy output, shrinking size and temperature

• Unstable fusion of hydrogen into helium in their cores, fluctuating energy output, changing size and temperature

Tags

NGSS.HS-ESS1-1

What does HR stand for in HR diagram?

• Hubble-Rubin

• Hubble-Russell

• Hertzsprung-Rubin

• Hertzsprung-Russell

What factors affect the tides on Earth?

• The presence of marine life

• The temperature of the water

• Gravitational forces exerted by the Moon because it is closer than the SUN

• The rotation of the Earth

Tags

NGSS.MS-PS2-4