Science Quiz

How long ago did the Big Bang happen?

• 10,000 years ago

• 13.7 billion years ago

• 13.7 trillion years ago

Which type of electromagnetic radiation has the longest wavelength?

• Red

• Blue

• Green

Which type of electromagnetic radiation has the longest wavelength?

• Gamma rays

• Ultraviolet

• Radio

Scientists can identify the chemical composition of a star by analyzing its

• Size

• Distance

• Emission spectrum

Which element is not present in the mixture?

• A

• D

• X

• Z

The color of a star is a clue to its

• shape

• temperature

• distance from Earth

The wavelength of visible light is

• shorter than that of television and FM radio

• longer than that of television and FM radio

• -----

• the same as that of X-rays

According to the diagram, which of the following has the longest wavelengths?

• infrared rays

• -----

• television and radio waves

• microwaves and radar waves

We cannot see some of the rays of the electromagnetic spectrum illustrated in the diagram because

• they are impossible to detect

• -----

• their wavelengths are too long or short for our eyes to detect

• they do not reach Earth

What property can scientists determine by studying the color of a star?

• Size

• Mass

• -----

• Temperature