Created by Mildred

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Basics Orbits Universe Solar Syst. Stars

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Jeopardy

How old is the solar system?

4.5 billion years

When an object is moved to a higher position, what will

increase?

Its potential energy

What does it mean if the light from a star is shifted towards the

blue end of the spectrum?

The star is moving towards the

observer.

The movement (change in direction of swing) of the

Foucault pendulum indicates that......

The earth is rotating

Gamma rays

Which kind of electromagnetic waves have the shortest

wavelength?

The shape of the earth's orbit is best described as a

Slightly eccentric ellipse

What term refers to the position of the earth when it

is closest to the sun?

Perihelion

When the earth is at aphelion, the apparent size of the sun

will be

Smallest

DAILY DAILY DOUBLEDOUBLE

What is the relationship between a planets distance

from the sun and its period of rotation?

There is NO relationship.

As distance from the sun increases, the rate of revolution

of the planets.......

Decreases

How old is the universe?

12 to 14 billion years

What is the most widely accepted theory which explains

the origin of the universe?

The Big Bang theory

A collection of 100 billion stars held together by gravity is

known as

A galaxy

A cloud of gas and dust in space is......

A nebula

The brightness of a star independent of its distance is

Luminosity

What is the source of power for the sun?

(hydrogen) FUSION

At what rate does the earth revolve around the sun?

About 1o/day

Which planet has the highest density?

Earth

In which phase must the moon be in order for a solar eclipse to

occur?

New Moon

On which date does the summer solstice occur?

June 21

Where are the direct or perpendicular rays of the sun

striking on December 21?

23.50 S

What is Earth’s angular rate of rotation?

15o/hour

How many days are required for the moon to complete one full

cycle of phases?

29.5

What is the name for higher than normal tides? And in what position will the moon be for

these to occur?

SPRING – New or Full

What is believed to be at the center of our galaxy?

A Black Hole