Benchmark Prep: Space

Front

What is a mixture?

Back

A combination of two or more substances where each substance retains its own properties.

Front

What is redshift in astronomy?

Back

Redshift occurs when an object in space, such as a star, is moving away from the observer, causing the light to shift towards the red end of the spectrum.

Front

What is blueshift in astronomy?

Back

Blueshift occurs when an object in space is moving towards the observer, causing the light to shift towards the blue end of the spectrum.

Front

How does distance affect gravitational pull?

Back

As the distance between two objects increases, the gravitational pull between them decreases.

Front

What do we use emission/absorption spectra for?

Back

To identify the composition of stars.

Front

What is the electromagnetic spectrum?

Back

The range of all types of electromagnetic radiation, including visible light, radio waves, X-rays, and more.

Front

What is the significance of a star's absorption spectrum?

Back

It provides information about the elements present in the star's atmosphere.

Front

What happens to light from a star that is moving away from Earth?

Back

The light is redshifted, meaning it shifts towards longer wavelengths.

Front

What happens to light from a star that is moving towards Earth?

Back

The light is blueshifted, meaning it shifts towards shorter wavelengths.

Front

What is gravity?

Back

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