CHAPTER 10 -REVISION Light – Reflection and Refraction

When light hits an area and bounces back it is called:

• echo

• refraction

• reflection

• absorbing

When light goes from one material(medium) to another it becomes bent, what term means bent?

• reflected

• refracted

• absorbed

• turned

Why does the straw appear to be bent?

• light is reflected

• light is absorbed

• light is turned

• light is refracted

When light passes from air to water, what happens to the speed of the light?

• speeds up

• slows down

• stays the same

What is the best explanation for Mickey seeing himself in the mirror?

• refraction

• absorbed

• reflection

• flipped

What is happening in this picture?

• Reflection

• Refraction

The velocity of light in vacuum is _______ m/s

• 3x10⁸
• 3x10¹²
• 3x10⁶
• 3x10¹⁰

What is the angle of reflection (θ_r) in the image?

• 56^o

• 90^o

• 124^o

• 34^o

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

Which of the following characteristics are correct for the image formed in a plane mirror?

I. Upright

II. Inverted

III. Real

IV. Same size as the object

V. Virtual

• I, II, III

• I, III, IV

• I, IV, V

• III, IV, V