Lenses

What does the word "converging" mean?

• to separate
• to come together
• parallel 
• perpendicular

A converging lens is also known as a ____ lens.

• convex
• concave
• double
• refracted

What does the word "diverging" mean?

• to spread apart
• to come together
• parallel
• perpendicular

A diverging lens is also known as a ____lens.

• refracted
• diffracted
• convex
• concave

___ is when light travels through a material and bends.

• Diffraction
• Dispersion
• Mirage
• Refraction

Tags

NGSS.MS-PS4-2

The point where the rays meet is known as....

• Fire
• the focal point
• refraction
• Plane of the lens

Is a convex lens thicker or thinner in the middle?

• Thicker 
• Thinner 

Is a concave lens thicker or thinner in the middle?

• Thicker

• Thinner

Which describes a convex lens?

• triangular in shape
• more transparent in the middle
• thicker on the edges than in the middle
• thicker in the middle than on the edges

When light waves move from passing through air to passing through a glass lens when happens to them?

• They slow down and change direction

• They speed up and change direction

• They maintain the same speed and change direction

• They maintain their same speed and direction

Tags

NGSS.MS-PS4-2