Light Properties and Behavior

The video tutorial explores the concept of light, describing it as a form of energy made of photons. It explains how light behaves as both a particle and a wave, interacting differently with various objects. The tutorial categorizes objects as transparent, opaque, or translucent based on their interaction with light. It highlights the speed of light, noting its rapid travel from the Sun to Earth. The concept of refraction is demonstrated with a pencil in water, showing how light bends. The video concludes with trivia about human bioluminescence and a summary of key points.

What is the smallest unit of visible light?

• Neutron

• Proton

• Electron

• Photon

How does light behave when it interacts with matter?

• Only as a particle

• As neither a particle nor a wave

• Only as a wave

• As both a particle and a wave

What type of object allows light to pass through completely?

• Transparent

• Translucent

• Opaque

• Reflective

Which of the following is an example of an opaque object?

• Wood

• Water

• Glass

• Air

What is the speed of light in a vacuum?

• 1 million kilometers per second

• 0.1 million miles per second

• 0.1 million kilometers per second

• 1 million miles per second

How long does it take for light to travel from the Sun to Earth?

• 8 minutes

• 8 days

• 8 seconds

• 8 hours

What phenomenon occurs when light bends as it passes through different mediums?

• Diffraction

• Reflection

• Absorption

• Refraction

What happens to a pencil when placed in a beaker of water?

• It appears straight

• It appears bent

• It disappears

• It changes color

What is the term for humans emitting light?

• Photosynthesis

• Fluorescence

• Bioluminescence

• Incandescence

How long does it take for light to reach the Moon from Earth?

• 12 seconds

• 1.2 minutes

• 12 minutes

• 1.2 seconds