OPTICS Science Exam Gr10 Flashcards

1
Q

Identify and describe the three main types of materials

A

Transparent - transmits all or most light
Translucent - transmits some light, reflects/absorbs the rest
Opaque - reflects or absorbs all light

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2
Q

What material is a mirror?

A

Opaque

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3
Q

What material is a wood table?

A

Opaque

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4
Q

What material is wax paper?

A

Translucent

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5
Q

What material is a window?

A

Transparent

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6
Q

What are the 3 laws of reflection?

A

-The angle of incidence is equal to the angle of reflection
-The incident ray, the normal, and reflected ray are on the same plane
- The incident ray and reflected ray are on opposite sides of the normal line

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7
Q

Explain the process of refraction.

A

Refraction is the bending of light as it passes through two different materials

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8
Q

What does SALT stand for?

A

S - Size
A - Altitude
L - Location
T - Type
Used to state image characteristics

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9
Q

What does SOFA stand for?

A

Slow to Fast, Away
O doesn’t mean anything

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10
Q

What does FAST stand for?

A

Fast to Slow, Towards
A doesn’t mean anything

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11
Q

SALT characteristics for objects beyond/behind C?

A

S - smaller
A - inverted
L - between c and f
T - real

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12
Q

SALT characteristics for objects between C and F?

A

S - larger
A - inverted
L - beyond c
T - real

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13
Q

SALT characteristics for objects at F?

A

NO IMAGE for all

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14
Q

SALT characteristics for objects at C?

A

S - same size
A - inverted
L - at c
T - real

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15
Q

SALT characteristics for objects between F and V?

A

S - larger
A - upright
L - behind mirror
T - virtual

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16
Q

What type of image is formed when object is behind F

A

Real image

17
Q

What type of image is formed when object is on F

18
Q

What type of image is formed when object is between F and V/mirror

A

Virtual image

19
Q

What does C stand for

A

Center of Curvature

20
Q

What does R stand for

A

Radius of Curvature

21
Q

What is the principal axis?

A

The line through C that passes through the middle of the mirror

22
Q

What does V stand for

A

Vertex, the point where the PA meets the mirror

23
Q

What does F stand for

A

Focal Point

24
Q

What is halfway between V and C?

25
What is always twice as large as the focal length
R
26
What does f* stand for
Focal Length (distance of F to V)
27
Step-by-step ray rules (mirror)
1. Top of object to mirror (parallel to PA) 2. Top of object through F 3. From ray 2, mirror through F 4. From ray 1, mirror then parallel to PA
28
Step-by-step ray rules (convex lens)
1. Top of object to mirror (parallel to PA) / Hit F 2. Top of object through F / parallel to PA 3. Hit V. Keep going straight ALL THE WAY
29
Step-by-step ray rules (concave lens)
1. Parallel to PA, refracts Up 2. End that hits mirror hits F 3. Straight through optical centerm
30
What sorts of image do concave lenses always produce?
Smaller, upright, virtual images
31
What kinds of image do convex lenses always produce?
Inverted and real
32
How many digits to you round to when using Snell's Law?
6
33
What is the universal wave equation
v = fλ (velocity equals frequency times wavelength)
34
What is the unit for velocity (speed)
m/s (milliseconds)
35
What is the unit for frequency
Hz (hertz)
36
What's the refractive index formula
n = c/v (n = index of refraction c = speed of light in a vacuum v = speed of light in substance)
37
What is the speed of light?
3.00 x 10⁸ m/s