Lenses

How does light travel

• It curves around corners
• Really slow
• In a straight line
• In circles

This diagram best represents 

• reflection
• refraction
• absorption
• diffusion

Tags

NGSS.MS-PS4-2

What is the ray of light that strikes the surface.

• Incident ray
• reflected ray
• normal ray
• normal

Tags

NGSS.MS-PS4-2

....................... - the imaginary line perpendicular to the surface.

• Normal
• Angle of incidence 
• Angle of reflection

Tags

NGSS.MS-PS4-2

Law of reflection state that - The angle of incidence is .................. to the angle of reflection.

• equal
• double
• half

Tags

NGSS.MS-PS4-2

___ is when light travels through a material and bends.

• Diffraction
• Dispersion
• Mirage
• Refraction

Tags

NGSS.MS-PS4-2

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

How does light behave as it enters these materials?

• continue its path as straight line.

• bends toward the normal

• bends away from the normal

• reflects

When light travels from glass to air it will speed up and ...

• it is bent toward the normal.

• it always lies along the normal.

• it is unaffected.

• it is bent away from the normal.

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