Refraction

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

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

• it is bent toward the normal.

• it always lies along the normal.

• it is unaffected.

• it is bent away from the normal.

Tags

NGSS.MS-PS4-2

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

• it is bent towards the normal.

• it always lies along the normal.

• it is unaffected.

• it is bent away from the normal.

Tags

NGSS.MS-PS4-2

The velocity of light in vacuum is _______ m/s

• 3x10⁸
• 3x10¹²
• 3x10⁶
• 3x10¹⁰

Tags

NGSS.HS-PS4-1

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

In what medium does light travel the fastest?

• vacuum
• air
• water
• glass

Tags

NGSS.HS-PS4-1

Which color of light is most refracted during dispersion by a prism?

• red
• yellow
• green
• violet

What causes refraction?

• A change in frequency of a wave.

• A change in amplitude of a wave

• A change in speed of a wave.

• A change in phase of a wave.

Refraction is when light__________.

• Is bounced by an object or material.

• Changes speed as it travels in different materials which causes bending.

• When light speeds up to over 300,000 km/s