Refraction ม3

A student placed a pencil in a cup of water. The pencil appears broken because light

• always travels in a straight line.

• bends when it passes through water.

• makes the water in the glass evaporate.

• reflects the pencil on the water's surface.

Tags

NGSS.MS-PS4-2

Refraction is the bending of a wave disturbance as it passes from one _________ into another.

• glass
• medium
• area
• boundary

Tags

NGSS.MS-PS4-2

Which statement is true when light passes from one medium into another in which its speed is faster.

• it is bent toward the normal.

• it always lies along the normal.

• it is unaffected.

• it is bent away from the normal.

When light passes at an angle to the normal from one medium into another in which its speed is slower

• it is bent towards the normal.

• it always lies along the normal.

• it is unaffected.

• it is bent away from the normal.

How is light affected by moving into a medium with a higher index of refraction?

• Its frequency increases
• Its frequency decreases
• Its speed increases
• Its speed decreases

If all other variables are held constant, what happens to the angle of refraction if the angle of incidence increases?

• the angle of refraction stays the same

• the angle of refraction decreases

• the angle of refraction increases

• cannot be determined from the information provided

Based on the image, as light passes from medium 1 to medium 2

• light speeds up and bends towards the normal

• light speeds up and bends away from the normal

• light slows down and bends towards the normal

• light slows down and bends away from the normal

Tags

NGSS.MS-PS4-2

How does light behave as it enters these mediums?

• continue its path as straight line.
• bends toward the normal
• bends away from the normal
• reflects

Swimming pools and the ocean look shallower than they really are due to:

• reflection 
• dispersion
• refraction
• total internal reflection

Glass has a _____________ index of refraction than air.

• Equal
• Greater
• Less
• Impossible to say

Tags

NGSS.MS-PS4-2