Light Ray and Material

What is the best description of an opaque material?

• no light passes through the material

• some light passes through the material

• all light passes through the material

Tags

NGSS.MS-PS4-2

What is the best description of a translucent material?

• no light passes through the material

• some light passes through the material

• all light passes through the material

Tags

NGSS.MS-PS4-2

The ray of light that strikes a reflecting surface is called ________.

• incident ray
• reflected ray
• normal ray
• none of the above

Tags

NGSS.MS-PS4-2

Light travels in ___________ lines

• wavy
• bent
• straight
• backwards

If the angle of incidence is 45 degree, what is the angle between the incident ray and reflecting surface

• 45
• 90
• 180
• none of the above

Tags

NGSS.MS-PS4-2

The bouncing off of light rays from the surface of an object such as a mirror or other shiny surface is called:

• mirror
• laser
• reflection
• refraction

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

A ________________ mirror is a mirror that is curved inward like the hollow side of a sphere.

A ___________________ mirror is a mirror that is curved outward.

Which of the following is an opaque material?

• Rock

• Plastic cover

• Eyeglasses

• Magnifying glass

Tags

NGSS.MS-PS4-2