Grade 7 Light

Front

What type of mirror is commonly found in bathrooms?

Back

Plane mirror.

Front

What phenomenon occurs when light changes direction as it passes from one medium to another?

Back

Refraction.

Front

Why does a pencil appear broken when placed in water?

Back

Light rays are bent by the water in the glass.

Front

What is demonstrated when light bounces off mirrors or shiny surfaces?

Back

Reflection.

Front

What property of a curtain allows it to make a room darker when closed?

Back

The curtain absorbs light.

Front

What is the definition of refraction?

Back

The bending of light as it passes from one medium to another.

Front

What is reflection in terms of light?

Back

The bouncing back of light rays when they hit a surface.

Front

What type of light does a convex mirror produce?

Back

A virtual image that is smaller than the object.

Front

What happens to light when it is absorbed by an object?

Back

The light energy is taken in by the object and converted to other forms of energy.

Front

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

Back

A concave mirror curves inward and can produce real images, while a convex mirror curves outward and produces virtual images.