Period 1 SNC2D Physics Quiz #2 (Part 1)

Question 1

Light is traveling from glycerol into air. What will happen to the light ray?

Answer 1

the ray will refract and bend away from the normal

Question 2

When an object is placed on F’ in a converging lens, what image will be produced?

Answer 2

no clear image

Question 3

Total internal reflection only occurs if

Answer 3

light travels at an angle greater than the critical angle

Question 4

Where must an object be placed with respect to a diverging lens in order to obtain a virtual image?

Answer 4

anywhere on the principal axis

Question 5

List and explain one application of a converging lens
*

Answer 5

Convergining lens are used in magnifying glasses because it makes an image that is larger, closer, virtual, and upright.

Question 6

List and explain one application of total internal reflection

Answer 6

Dimonds use index of reflection, they need to be cut exactly at a 45 degree angle. a lot of total internal reflection happens at once causing sparkels.

Question 7

Which of the following colours in the visible spectrum has the lowest energy?

Answer 7

RED

Blue
Violet
Green

Question 8

Which of the following colours in the visible spectrum has the highest energy?

Answer 8

VIOLET
Blue
Red
Green

Question 9

The type of light that occurs when electrical energy collides with gas particles that release light

Answer 9

Luminescent Electric Discharge

Question 10

Production of light as a result of a chemical reaction
*

Answer 10

Chemiluminescence

Question 11

Which of the following object locations will result in no clear image?
*

Answer 11

Focal point

Question 12

Which of the following object locations will result in a virtual image?

Answer 12

oposite side of the lens

Question 13

What would the LOST (Location, Orientation, Size, Type) image characteristics be for a pencil that is located 5 cm away from a plane mirror?

Answer 13

L - Same, O - Upright, S - Same, T - Virtual

Question 14

List the two major Laws of Reflection

Answer 14

The incident ray, the reflected ray, and the normal are on the same axis. The angle of the reflected ray is equal to the angle of the incident ray.

Question 15

The following 4 diagrams represent various wavelengths of the electromagnetic spectrum. Using the key terms WAVELENGTH, FREQUENCY, and ENERGY, compare WAVE B and WAVE D

Answer 15

The wavelength of B is much longer then the wavelenth of wave D, meaning that it has less energy. The frequency of wave length D is higher because there are more waves/sec in Wave D than in wave B.

Question 16

List and explain 1 technology/application that uses concave mirrors/surfaces
*
1.5/2

Answer 16

The headlights of cars use concave mirrors to create light that travels parallel and long distance. This is because concave mirrors

When the bulb of headlight is placed at focus of concave mirror, it allows the light to spread out to infinity (longer distances) and at infinity they are approximately parallel. Hence, concave mirrors are used in the headlights of vehicles.

Question 17

List and explain 1 technology/application that uses convex mirrors/surfaces

Answer 17

The rearview mirrors use convex mirrors to make virtual images that are smaller. virtual, full size diminished image of distant objects with a wider field of view.