8th - Solar System (Sun & Moon) Quiz

How far is the Sun from Earth in astronomical units (AU)?

• 1 AU

• 2 AU

• 0.5 AU

• 1.5 AU

What percentage of the energy leaving the sun is in the form of light or electromagnetic waves?

• 93%

• 85%

• 75%

• 60%

What does the solar spectrum represent in relation to the Sun's energy?

• The different colors visible in the sunlight

• The entire span of electromagnetic waves emitted by the Sun

• The amount of heat the Sun emits

• The distance sunlight travels to reach Earth

Which color corresponds to the shortest wavelength in the visible spectrum?

• Blue

• Green

• Violet

• Red

Which color corresponds to the longest wavelength in the visible spectrum?

• Blue

• Green

• Violet

• Orange

Which characteristic is true for infrared radiation?

• It causes sunburn

• It is shorter than visible light

• It can be felt as heat

• It is used in radio communication

Which of the following is NOT a type of electromagnetic radiation?

• Ultraviolet

• Infrared

• Sound waves

• Radio waves

What instrument is used to determine the composition of the Sun?

• Telescope

• Spictrascope

• Spectroscope

• Barometer

Approximately what percentage of the Sun's mass is made up of hydrogen and helium?

• 50%

• 75%

• 98%

• 85%

How many different elements have been identified in the Sun's composition?

• 50

• 79

• 100

• 65