Science Fall Semester Exam Part 2

Front

What is a hot spot in geology?

Back

A hot spot is a location on the Earth's surface that has experienced active volcanism for a long period of time, caused by a plume of hot material rising from the mantle.

Front

What is the relationship between a star's temperature and its brightness?

Back

The hotter the star, the more brightly it burns; this is a general trend observed in Main Sequence stars.

Front

Define amplitude in the context of waves.

Back

Amplitude is the maximum distance that points on a wave, such as crests and troughs, move from their rest position.

Front

What does frequency measure in wave properties?

Back

Frequency measures how many waves pass a given point in one second, typically expressed in Hertz (Hz).

Front

What is wavelength in wave physics?

Back

Wavelength is the distance between successive crests or troughs of a wave.

Front

What is the approximate position of the Sun in the Milky Way galaxy?

Back

The Sun is located in the Orion Arm of the Milky Way galaxy, approximately 26,000 light-years from the galactic center.

Front

What are quasars?

Back

Quasars are extremely distant celestial objects that emit large amounts of energy, often outshining entire galaxies.

Front

What type of waves do telescopes detect when observing quasars emitting frequencies around 1.41 x 10^9 Hz?

Back

Telescopes detecting this frequency are likely observing microwaves.

Front

What is the significance of subduction in plate tectonics?

Back

Subduction is the process where one tectonic plate moves under another, leading to volcanic activity and the formation of mountain ranges.

Front

What is the difference between oceanic and continental plates?

Back

Oceanic plates are denser and thinner than continental plates, which are thicker and less dense.