Earth Movement, EM Spectrum, and the Sun

The spinning movement of the Earth about its axis is called the Earth's...

• revolution

• rotation

• precession

• orbit

Movement of a planet around the sun. It takes Earth about one year to travel around the sun.

• rotate

• path

• revolve or orbit

• gravity

Which of the following correctly describes the movement of Earth, Moon, and the Sun?

• Sun revolves around Moon; the Moon revolves around the Earth

• Sun and Moon both revolve around the Earth

• Moon revolves around the Sun; Earth revolves around the Moon

• Moon revolves around Earth; Earth revolves around the Sun

Which arrow shows the movement that causes day and night on Earth?

• Arrow 1 because it shows the rotation of the sun.

• Arrow 2 because it shows the orbit of Earth around the sun.

• Arrow 3 because it shows the orbit of the moon around Earth.

• Arrow 4 because it shows the rotation of Earth.

Rotation is the movement of the Earth that gives us seasons.

• true

• false

Earth's movement through space causes...

• day, night

• day, night, and seasons

• seasons

• earthquakes

The electromagnetic spectrum shows the relation of different waves traveling at the same speed.

• true

• false

The electromagnetic spectrum consists of...

• five main types of waves

• low and high frequency waves

• seven main waves

• waves

What is the trend of the electromagnetic spectrum?

• Increasing wavelength/decreasing energy/increasing frequency.

• Decreasing wavelength/decreasing energy/increasing frequency.

• Increasing wavelength/decreasing energy/decreasing frequency.

• Increasing wavelength/increasing energy/increasing frequency.

What part of the electromagnetic spectrum can be directly observed by humans?

• visible light

• ultraviolet light

• radio waves

• gamma rays