Unit 5 Review

Front

What is the least bright type of star?

Back

White Dwarf

Front

How would you best describe a star?

Back

A star is a celestial body composed of gases that emit light due to nuclear reactions.

Front

What never changes no matter where you are in the universe?

Back

Mass

Front

What is the tendency of an object to resist a change in motion?

Back

Inertia

Front

What are the four inner planets?

Back

Mercury, Venus, Earth, and Mars.

Front

What is a supergiant star?

Back

A supergiant star is a massive star that has expanded and is among the largest stars in the universe.

Front

What is the main sequence in terms of stars?

Back

The main sequence is a continuous and distinctive band of stars that appears on plots of stellar color versus brightness.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is gravity?

Back

Gravity is the force that attracts two bodies towards each other, proportional to their masses and inversely proportional to the square of the distance between them.

Front

What are the characteristics of a giant star?

Back

Giant stars are larger than main-sequence stars and have expanded due to the fusion of heavier elements.