5.6C Light Test

Front

What is reflection in terms of light?

Back

Reflection is the bouncing back of light when it hits a surface, allowing us to see images in mirrors and water.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another, causing objects to appear shifted or distorted, like a fish appearing closer to the surface of water.

Front

What does it mean for light to travel in a straight line?

Back

Light travels in straight lines until it hits an object or medium that causes it to change direction, such as reflection or refraction.

Front

What is absorption in the context of light?

Back

Absorption is when light is taken in by a material and not reflected or transmitted, which can cause the material to heat up.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials, not related to the behavior of light.

Front

How does a mirror work?

Back

A mirror reflects light, allowing us to see a clear image of ourselves or objects in front of it.

Front

What is the role of a lens in focusing light?

Back

A lens bends light rays to converge or diverge, allowing us to focus images, such as in glasses or cameras.

Front

What is a laser?

Back

A laser is a device that emits a focused beam of light through a process of optical amplification, producing light that is coherent and monochromatic.

Front

What happens when light hits a rough surface?

Back

When light hits a rough surface, it scatters in many directions, which is why we cannot see a clear reflection.

Front

What is the difference between a concave and a convex mirror?

Back

A concave mirror curves inward and can focus light to a point, while a convex mirror curves outward and causes light to spread out.