Science Unit 5 Test Review

Why is mass so important in determining the life cycle (life span) of a star?

The more massive a star is the more fuel it burns leading to a shorter lifespan

Crest

The high point in a wave

Through

The low point in a wave

What is the height of a wave?

Amplitude

Wavelengths

the distance from one part of a wave to the next part of the wave

What to waves carry

energy

Electromagnetic waves travel at what speed?

Speed of light

What is the order of the EM spectrum from lowest to highest frequency?

RMIVUXG

What waves give off the colors of the rainbow?

Visible light

What rays occur in sunlight?

UV rays

What rays are used to transmit radio and phone signals.

Radio waves

Gamma rays are found in..

Nuclear explosions

What rays are used to change channels on TV

Infrared rays

What emits EM radiation when moving from one energy level to the next?

Electrons

What behaves like waves and sometimes like particles?

Radiation

What are the 3 types of galaxies?

Elliptical, Spiral, Irregular

What is a star?

A sphere of glowing gases that produces energy through nuclear fusion

How are stars classified?

Size, Temperature, Brightness

Where are baby stars born?

Nebula

What are baby stars called?

Protostars

Nebula

This is where baby stars are born. They are a cloud that contains the gas and dust needed to form new stars.

Life Cycle of Small or Medium-Sized Star

Red Giant → White Dwarf → Black Dwarf

Life Cycle of Giant or Super Giant Star

Supergiant →Supernova → Black Hole -OR- Neutron Star

What is the location of the Sun/our solar system in the Milky Way galaxy.

On one of the spiraling arms mid-way from the bulge in the center and the outer edge

What happens to the number of elements a star contains as it gets older?

It increases