Light Bending Experiments Quiz

What is the main purpose of the video introduction?

• To encourage creative use of idle time

• To provide a detailed scientific explanation

• To explain the history of light experiments

• To introduce a new scientific theory

In the first experiment, what happens when you move your finger side-to-side?

• The finger becomes invisible

• The background becomes clearer

• The light changes color

• The light bends around the finger

What is the scientific explanation for the light bending around the finger?

• The finger emits its own light

• The finger blocks some light rays

• The finger warps space-time

• The finger creates a black hole

What is the shadow blister effect?

• A phenomenon where shadows become sharper

• A phenomenon where shadows change color

• A phenomenon where shadows bulge towards each other

• A phenomenon where shadows disappear

What part of a shadow is completely dark?

• The umbra

• The halo

• The penumbra

• The corona

What is the common explanation for the dark lines seen in the third experiment?

• Refraction

• Diffraction

• Absorption

• Reflection

Why is diffraction unlikely to be the cause of the dark lines in the third experiment?

• The light source is not coherent

• The light source is too bright

• The gap is too wide

• The light is not visible

What scientific concept did Einstein's thought experiments lead to?

• Electromagnetism

• General relativity

• Quantum mechanics

• Thermodynamics

What is gravitational lensing?

• A phenomenon where light is bent by massive objects

• A method to create artificial lenses

• A way to generate energy from light

• A technique to measure light speed

What is the role of curiosity in scientific discovery according to the video?

• It is a distraction from real work

• It is only useful for theoretical physics

• It leads to unnecessary experiments

• It inspires new ideas and discoveries