Astro.U1.Q3

What particles make up light?

• Photons
• Neutrons
• Protons

Light behaves like both a particle and a ______.

• Mass
• Wave
• Current

What does refraction mean?

• bending light
• bouncing light

What does reflection mean?

• bending light
• bouncing light

The full spectrum of light energy is called the__________

• broad spectrum
• electromagnetic spectrum
• helium spectrum 
• natural light spectrum

Why does the apple appear red?

• It reflects all the colors except red

• It diffracts all the colors except red

• It absorbs all the colors except red

• It refracts all the colors except red

The velocity of light in vacuum is _______ m/s

• 3x10⁸
• 3x10¹²
• 3x10⁶
• 3x10¹⁰

Which color absorbs all light?

• White
• Black
• Orange
• Green

Which of the following has the highest energy?

• Gamma rays

• X-rays

• Visible light

• Microwaves

Which wavelength can humans see?

• Microwaves

• Radio waves

• Visible light

• Gamma rays