IQWST PS1 Unit 1 Review- Can I Believe My Eyes?

Front

What creates a shadow?

Back

A shadow is created when an object blocks light from a light source, preventing light from reaching a surface behind it.

Front

Why does a darker surface get hotter than a lighter surface?

Back

Darker surfaces absorb more sunlight, which increases their temperature compared to lighter surfaces that reflect more light.

Front

What is necessary for us to see an object through a window?

Back

Light from a source (like the sun) must hit the object, bounce off, and then pass through the window to reach our eyes.

Front

What is the result of mixing red, green, and blue light?

Back

To make black, no red, green, or blue light is needed; black is the absence of light.

Front

Which material blocks the most light?

Back

A blindfold allows the least amount of light to pass through it.

Front

What is light transmission?

Back

Light transmission is the process by which light passes through a material.

Front

What happens to light when it hits a reflective surface?

Back

When light hits a reflective surface, it bounces back, allowing us to see the object.

Front

What is the difference between absorption and reflection of light?

Back

Absorption occurs when light is taken in by a material, while reflection occurs when light bounces off a surface.

Front

How does color affect heat absorption?

Back

Colors like black absorb more heat, while colors like white reflect heat, affecting temperature.

Front

What is the role of sunlight in seeing objects?

Back

Sunlight illuminates objects, allowing light to reflect off them and reach our eyes.