8th Grade Fall Final review

Front

Where is the Earth found in our Milky Way Galaxy?

Back

On the Edge of a Spiral arm.

Front

What does "For every action, there is an equal and opposite reaction" represent?

Back

Newton's 3rd law.

Front

What does it mean if something is redshifted?

Back

It is moving away from us.

Front

Why does water spread throughout a paper towel when spilled?

Back

Strong adhesion attracts the water to the paper towel and causes the water to move along the surface of the towel.

Front

What happens to the redshift of an object moving very fast away from Earth?

Back

It has more redshift than an object moving very slow away from Earth.

Front

What is Newton's 1st law?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is Newton's 2nd law?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F=ma).

Front

What is the definition of redshift?

Back

Redshift is the phenomenon where light from an object moving away from an observer is shifted to longer wavelengths.

Front

What is the difference between redshift and blueshift?

Back

Redshift occurs when an object moves away, while blueshift occurs when an object moves towards the observer.

Front

What is adhesion in the context of water?

Back

Adhesion is the attraction between water molecules and different substances, like paper towels.