The universe, seasons, and tides

A student draws models of the Earth and the sun in different positions. Which drawing should be used to represent summer in the southern hemisphere?

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Tags

NGSS.MS-ESS1-1

This question has two parts.

A Hertzsprung-Russell diagram is shown.

An astronomer observes a star that has a temperature of 3,750 K and a luminosity of 10³ _{L sun.}

Part A: According to the diagram, which type of star did the astronomer discover?

• White Dwarf

• Giant

• Main Sequence

• Supergiant

Part B: Which statement supports the answer to Part A?

• The star is cool and bright compared to other types of stars.

• The star is hot and bright compared to other types of stars.

• The star is cool and dim compared to other types of stars.

• The star is hot and dim compared to other types of stars.

Some characteristics of several astronomical objects are listed. Identify each object based on the characteristics listed. Move the correct answer to each box.

Groups:

(a) Star

,

(b) Nebula

,

(c) Comet

,

(d) Meteor

• Contains a center of dust and ice.

• Rock that vaporizes as it falls through Earth's atmosphere.

• Has a tail of gas and dust particles

• Cloudlike formation of gas and dust.

• Sphere of plasma that produces its own light.

The diagram shows the alignment of Earth, the moon, and the sun on one day in May 2019. The table shows tide heights for a coastal city on four different days in May 2019.

Based on the table, on which date were Earth, the moon, and the sun MOST LIKELY arranged as shown in the diagram?

• May 15

• May 18

• May 22

• May 26

Tags

NGSS.MS-ESS1-1

The model shows the position of Earth in its orbit around the sun and two points on Earth.

Which statement correctly compares and explains the length of daylight at the two points?

• The length of daylight is shorter at Point X than at Point Y because the Northern Hemisphere is tilted away from the sun.

• The length of daylight is shorter at Point X than at Point Y because the Northern Hemisphere is tilted toward the sun.

• The length of daylight is longer at Point X than at Point Y because the Northern Hemisphere is tilted away from the sun.

• The length of daylight is longer at Point X than at Point Y because the Northern Hemisphere is tilted toward the sun.

Tags

NGSS.MS-ESS1-1