Investigating the Universe 8.9ABC, 6.9AB, 7.9B

Front

The Hertzsprung-Russell diagram shows the relationship between the brightness and temperature of a star. Which statement describes the star at location ‘A’?

Back

The star at location ‘A’ is brighter than the Sun and has a surface temperature below 25,000 K.

Front

According to the diagram, which of these types of stars has the greatest luminosity?

• Hot white dwarf
• Hot main sequence star
• Cool super giant
• Cool giant

Back

Hot main sequence star

Front

What determines what a star will become during its life cycle? Options: Color, Mass, Luminosity, Temperature

Back

Mass

Front

What has the greatest effect on the Earth's tides?

Back

The Moon’s gravitational pull

Front

The diagram below depicts the lunar cycle. A neap tide occurs at ___________ while a spring tide occurs at __________.

Back

X and Z ; W and Y

Front

If the Sun is removed from the solar system, what happens to the planets?

Back

The planets would travel on a different path.

Front

According to the Mass of Planets table, on which planet would a person weigh the least? Options: Jupiter, Venus, Mercury, Earth.

Back

Mercury

Front

According to the Mass of Planets table, which planet has the greatest gravitational force?

Back

Jupiter

Front

What force keeps the planets in their continuous orbits around the Sun?

Back

Gravity

Front

Which statement typically demonstrates the relationship between the mass of a celestial body and its gravitational pull?

Back

Jupiter has the greatest mass of the planets in the solar system, so it has the greatest gravitational pull.