1st Semester Spiral Review #1

Front

What does the Hertzsprung-Russell diagram illustrate about main-sequence stars?

Back

Main-sequence stars increase in brightness as they increase in temperature.

Front

What is the function of a Spectroscope?

Back

A Spectroscope collects light from distant stars and separates it into bands.

Front

What is a key feature of electromagnets?

Back

Electromagnets can be turned on and off.

Front

What does high amplitude in sound indicate?

Back

High amplitude indicates high volume.

Front

What happens to the poles when a magnet is cut in half?

Back

Both halves get a North pole and a South pole.

Front

Define a main-sequence star.

Back

A main-sequence star is a star that is in the stable phase of hydrogen burning in its core.

Front

What is the relationship between temperature and brightness in stars?

Back

Generally, as the temperature of a star increases, its brightness also increases.

Front

What is the purpose of using a Spectroscope in astronomy?

Back

To analyze the light from stars and determine their composition and distance.

Front

Explain the concept of electromagnetism.

Back

Electromagnetism is the interaction between electric currents and magnetic fields.

Front

What is amplitude in the context of sound waves?

Back

Amplitude refers to the height of the sound wave, which determines its volume.