Refraction & Reflection

Why does the straw appear to be bent?

• light is reflected

• light is absorbed

• light is turned

• light is refracted

Tags

NGSS.MS-PS4-2

What do we call a material that light can travel through?

• air

• water

• medium

• pathway

Tags

NGSS.MS-PS4-2

• Reflection
• Refraction

Tags

NGSS.MS-PS4-2

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

• speeds up

• slows down

• stays the same

Tags

NGSS.MS-PS4-2

The velocity of light in vacuum is _______ m/s

• 3x10⁸
• 3x10¹²
• 3x10⁶
• 3x10¹⁰

Tags

NGSS.HS-PS4-1

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

• 56^o

• 90^o

• 124^o

• 34^o

Tags

NGSS.MS-PS4-2

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

Tags

NGSS.MS-PS4-2

Which of the following factors contributes to the bending of light?

• Change of speed of light

• Change of density of light

• Change of colour of light

• Change of energy of light

Tags

NGSS.MS-PS4-2

Light has the lowest velocity in which medium?
flint glass n=1.70
barium glass n=1.60
crown glass n=1.523
water n=1.33
diamond n=2.45

• diamond
• water
• flint glass
• barium glass

Tags

NGSS.HS-PS4-1

When the light passes out of the glass, back into the air

• It bends away from the normal

• It does not bend

• It bends towards the normal

• It continues to be the normal

Tags

NGSS.MS-PS4-2