1) wavelength

2) frequency

3) period

4) amplitude

5) energy

The distance between successive wave crests defines the ________ of a wave.

Question 1

1) wavelength

2) frequency

3) period

4) amplitude

5) energy

The distance between successive wave crests defines the ________ of a wave.

Question 1

Light can range from short-wavelength gamma rays to long-wavelength radio waves.

1) gamma rays

2) infrared

3) sound

4) visible light

5) radio

Which of these is NOT a form of electromagnetic radiation?

Question 2

1) gamma rays

2) infrared

3) sound

4) visible light

5) radio

Which of these is NOT a form of electromagnetic radiation?

Question 2

Sound comes from pressure waves; all others are types of EM radiation of different wavelengths.

Question 3

What types of Electro-Magnetic Radiation from space reach the surface of Earth?

1) radio & microwaves

2) X rays & ultraviolet light

3) infrared & gamma rays

4) visible light & radio waves

5) visible & ultraviolet light

Question 3

What types of Electro-Magnetic Radiation from space reach the surface of Earth?

1) radio & microwaves

2) X rays & ultraviolet light

3) infrared & gamma rays

4) visible light & radio waves

5) visible & ultraviolet light

Earth’s atmosphere allows radio waves & visible light to reach the ground.

1) radius.

2) mass.

3) magnetic field.

4) temperature.

5) direction of motion.

The frequency at which a star’s intensity is greatest depends directly on its

Question 4

1) radius.

2) mass.

3) magnetic field.

4) temperature.

5) direction of motion.

The frequency at which a star’s intensity is greatest depends directly on its

Question 4

Wien’s Law means that hotter stars produce much more high frequency light.