mirrors

Question 1

if the angle of X is 43° what is the measure of angle Y?

Answer 1

43° because the angle of the incident right equals the reflective ray

Question 2

what is the angle of Z if the angle of X is 43?

Answer 2

The angle of Z is 37° because 90° minus the degree of the incident ray equals 37

Question 3

What are two rules of reflection on plane mirrors?

Answer 3

The angle of incidence is equal to the angle of reflection

The incident ray reflective ray in the normal exist in the same plane ( in front of the mirror )

Question 4

if you’re looking at an image through a mirror, what does it appear to look like?

Answer 4

same size same location, but inverted

Question 5

describe the image produced by a plane mirror using SALT

Answer 5

Same size, upright,, same distance, virtual

Question 6

Describe the image always produced by convex mirror

Answer 6

smaller, upright, between V and F, virtual

Question 7

Draw and describe the rules used to locate images in a concave mirror

Answer 7

use the 4 rays to find the image

Question 8

what is refraction?

Answer 8

Bending of light

Question 9

When does refraction occur?

Answer 9

when light rays transmit through medians of different densities

example from air to water —> water is the highest density than air

Question 10

when does the reflected rate bend towards the normal or away from the normal?

Answer 10

when the light ray moves from an area of low density example air to an area with higher density example oil

Question 11

What is the difference between real image and virtual image?

Answer 11

Real equals image appears on the same side of the mirror as the object

virtual equals image appears on the opposite side of the mirror than the object

Question 12

Describe two pieces of evidence that indicate light travels and straight line

Answer 12

shadows: when light is blocked by an object, it has a shadow. The sharp edges of the shadow suggests that light travels in straight lines. If light were to curve, the shadow would be blurry or distorted, but since shadows have a distinct well defined edges this supports the idea of light travelling in the straight pat

pinhole camera : a pinhole camera works by allowing light to pass through a small hole and project an image on the opposite side. The clear and sharp image produced by the camera indicates that the light travels in straight lines from the object through the pinhole to the screen, forming a distant and accurate representation of the object..