Unit 4 Flashcardizz Review: The Universe

Front

What is the surface temperature of white dwarf stars compared to red super giants?

Back

The surface temperature of white dwarf stars is higher than that of red super giants.

Front

What celestial bodies are aligned during a spring tide?

Back

A spring tide occurs when the Sun and the Moon are aligned.

Front

What is the rate of acceleration due to gravity on Earth?

Back

The rate of acceleration due to gravity on Earth is 9.8 m/s/s.

Front

What occurs on the sides of the Earth 90 degrees away from the Moon?

Back

Low tides occur on the sides of the Earth 90 degrees away from the Moon.

Front

What force determines how much we weigh on Earth?

Back

How much we weigh on Earth is a direct result of the force of Earth's gravity.

Front

Define a white dwarf star.

Back

A white dwarf star is a small, dense star that is typically the size of Earth but has a mass comparable to that of the Sun.

Front

What is a red supergiant?

Back

A red supergiant is a very large star that has expanded and cooled, resulting in a reddish appearance.

Front

Explain what a spring tide is.

Back

A spring tide is a tide that occurs when the gravitational forces of the Moon and Sun are aligned, leading to the highest high tides and the lowest low tides.

Front

What is the difference between high tides and low tides?

Back

High tides are the highest water levels in the ocean, while low tides are the lowest water levels.

Front

What is the gravitational force?

Back

Gravitational force is the attraction between two masses, which causes objects to be pulled towards each other.