Earth's Place in the Universe (1.1-1.4)

Front

Scarlett and Aiden are discussing the differences between infrared waves and X-rays. What relationships would you expect to see in terms of wavelength, energy, frequency, and why?

Back

Because of their inverse relationship, infrared waves will have longer wavelengths with lower frequencies than that of X-rays.

Tags

NGSS.HS-PS4-1

Front

How is energy produced in the Sun?

Back

in the Sun by nuclear fusion

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

Front

What is the eccentricity of an elliptical orbit of a planet traveling around a star, where the focal point and the center of the star represent the foci? Options: 0.3, 0.8, 0.5, 1.3

Back

0.8

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Front

Ethan is observing a planet revolving in an elliptical orbit around a distant star. As the planet makes one complete revolution around the star, starting at the position shown, the gravitational attraction between the star and the planet will:

• decrease, then increase
• increase, then decrease
• remain the same
• continually decrease

Back

decrease, then increase

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Front

Grace and Henry are observing the orbits of three planets, X, Y, and Z, around star A. Star A is located at one focus and point B is the other focus. Numbers 1 through 7 represent different positions of the three planets. The arrows show the direction of revolution. The orbital paths of these planets around star A can best be described as having

Back

an elliptical shape, with star A at one focus

Tags

NGSS.MS-ESS1-2

Front

Which statement about the period of revolution of the planets is correct? Options: Planet X has a longer period of revolution than planet Y, Planet Z has a longer period of revolution than planet X, The planets have equal periods of revolution, Planet Y has a longer period of revolution than planet Z.

Back

Planet Z has a longer period of revolution than planet X.

Tags

NGSS.MS-ESS1-2

Front

Estimate the orbital period of Asteroid Baade with an orbital radius of 2.55 AU using Kepler's 3rd Law.

Back

4.07 years

Tags

NGSS.MS-ESS1-2

Front

Abigail is observing the ocean and experiencing a spring low tide. What is the most likely position of the Sun?

Back

To the left of the image.

Answer explanation

Spring tides occur when the Sun and the Moon are aligned. When the Sun is behind the Moon, the combined force of their gravity causes a greater tidal bulge on the near side of the Earth, while on the opposite side the combined centrifugal forces cause a greater tidal bulge on the far side of the Earth. When the Sun is opposite the Moon, the centrifugal force caused by the Sun combines with the Moon's gravity to produce one tidal bulge, while on the opposite side the Sun's gravity combines with the centrifugal force caused by the Moon to produce the other bulge. From the information given, it is impossible to determine if the Sun is above or below the image.

Tags

NGSS.MS-ESS1-1

Front

Why does the barycenter lie closer to the Earth?

Back

Because the Earth is larger and therefore a stronger gravitational pull

Tags

NGSS.MS-ESS1-1

NGSS.MS-PS2-4

Front

Type of radiation from Earth absorbed by greenhouse gases?

Back

infrared

Tags

NGSS.HS-ESS2-4

NGSS.HS-PS4-3