Ch9 Study Guide

Question 0

Compare the electromagnetic waves in regard to wavelength and frequency

Answer 0

All electromagnetic waves travel at the same speed through a vacuum but they have different wave lengths and frequency a

Question 1

Understand charecteristics of electromagnetic waves how cab they travel what is an electromagnetic wave

Answer 1

A disturbance that involves the transfer of electric and magnetic energy the too feilds vibrate at right and to one another they go through different mediums and Arrive on earth as electromagnetic waves

Question 2

Understand the differnce between regular and diffuse reflection

Answer 2

Regular smooth surface clear image

Diffuse uneven surface unclear image

Question 3

Give examples of plane concave and convex mirrors

Answer 3

Plane- normal mirror
Concave-makeuo mirror
Convex- car mirror

Question 4

Understand flight refraction in different mediums what happens to light when it passes through air and water

Answer 4

In different mediums it can bend more or less
Water bends a large amount
Air slight bend
Index of refraction of a medium is a measure of how much light ray mends when it enter that medium

Question 5

How is a mirage formed

Answer 5

Air just above the road is hotter then the air higher up
Refraction of light
Light from the sky refracted to your eyes

Question 6

What types if images can concave and convex lens produce

Answer 6

Concave virtual upright smaller the object

Convex real or virtual based in position relative to vocal point

Question 7

Speed if sound tracked at different speeds through different substances explain the factors that can affects the speed of sound also explain what medium sound travels fastes

Answer 7

Spends on substances physician properties
Passes through air the best
Depends on tempature increased by the speed of sound
Compressibility and density