What property of the wave is represented by the letter "A"?

Which wave in the diagram has the greatest frequency?

Which word is used to identify the distance between points C & G?

Which letter(s) represent the trough of the wave?

All waves carry ______ as they travel from one place to another.

What property of the wave is represented by the letter "B"?

Which letter(s) represent the crest of the wave?

Which wave in the diagram has the longest wavelength?

Which section of the spectrum is the ONLY one we can see?

Which of the following electromagnetic waves has the lowest energy?

High frequency waves have ________ wavelengths.

A wave with a large wavelength will have a ______ frequency and _____ energy

Which of the following is not in the electromagnetic spectrum?

In which list are forms of electromagnetic energy arranged in order from longest to shortest wavelength?

What is the correct order of the visible light spectrum starting with the longer wavelength?

This type of EM wave shows a break in bones.

________ is an EM wave that has the LEAST energy.

If the wavelength of an electromagnetic wave is longer, what is true about the energy?

Which part of the electromagnetic spectrum has high enough energy to cause damage to eyes and skin, and sometimes even cancer?

Which of the following electromagnetic waves is given off as heat?

Cell phones use _____________ waves.

Infrared waves are used in __________________.

EM waves ______ travel the same speed in a vacuum.

Nuclear weapons are examples of __________. 

The higher the frequency the ______ the energy.

As the frequency of an electromagnetic wave increases, the amount of energy in that wave...

Quasars are extremely distant celestial bodies. Investigators using a special telescope determined that a certain quasar was emitting waves with a frequency of 1 4. 1 × 109 Hz. An electromagnetic spectrum is shown. The investigators were most likely using a telescope that detects ___

A diagram of the electromagnetic spectrum is shown. Earth’s atmosphere blocks short wavelengths of the electromagnetic spectrum. Which telescopes must be placed in orbit around Earth in order to observe short-wavelength radiation?

The temperature of a star determines the wavelength of visible light that is produced. The visible part of the electromagnetic spectrum is shown.

Stars with the highest temperatures will emit most of their light at wavelengths that are near —

What is the amplitude of the green wave?

Choose the letter that represents the wave’s amplitude.

Which wave in the diagram has the greatest frequency? Choose the numbered wave with the most cycles over the same distance.

What is the best evidence for the Big Bang theory?

In ____ shift, the galaxies appear ____ in color because they are moving away from us.

If a galaxy is being observed from Earth and its light has shifted towards the blue side of the electromagnetic spectrum it would be...

Describe the beginning of the universe

What is happening to our universe right now?

Light years are a measure of:

A light year is...

Scientists use light years to measure objects in space rather than units such as miles or kilometers because of how massive the galaxy and universe is.

Proxima Centauri is the closest star to Earth after the Sun and is located $$4.3$$ light years away from Earth. How long does it take light from Proxima Centauri to reach Earth?

Our Sun is located on one of the spiral galaxy arms.

What type of galaxy is this?

What type of galaxy is this?

What type of galaxy is this?

Alpha Centauri appears as a bright object visible in the Milky Way galaxy. Alpha Centauri is actually a system of three objects. Each object produces light and rotates on its own axis. The system is an average of $$4$$ light-years from Earth. Based on this information, the three objects that make up the Alpha Centauri system are all —

Which information best supports the inference that the universe began with an explosion?

Star formation begins in the...

Which is an accurate description of determining a star's life span?

What is the force that acts on a nebula to cause the formation of a protostar?

At which point in its development does a star exit the protostar stage and become a main sequence star?

Our Sun is considered slightly below average in mass. As it is a small to medium mass star, what would be the name of the phase that our Sun would enter after it exits the main sequence?

There are $$2$$ points in the life cycle of a star that stars can take different paths. In each of these cases, it is the ______ of the star that determines the path it will take.

Main sequence stars are made primarily of which elements?

A gigantic explosion that causes the death of a large star is called

The core of a Red Giant collapses and becomes a

The stage after the main sequence star

When a star's gravitational pull is so strong that not even light can escape, it's called a what?

What is the correct order for the life cycle of our star the sun?

Which of the following galaxies is most like our own Milky Way? Images A–D show different galaxy types.