TOPIC 2.2-THE LAW OF REFLECTION
LAB STATION 1: REFLECTED LIGHT
QUESTION: What material is the best reflector of light?
HYPOTHESIS: I THINK ……
BECAUSE………
VARIABLES:
Manipulated: __________________________________________
Responding: ___________________________________________
Controlled: ____________________________________________
OBSERVATIONS:
Material
Description
Transparent,
Translucent, or
Opaque
Surface type
(smooth or
rough)
Color
Qualitative
Measurement
(good, ave., or
poor)
Quantitative
Measurement
(V)
ANALYSIS:
1) Which materials reflected the best? Did this agree with your prediction?
Why or Why not?
2) Which materials reflected the worst? Did this agree with your
prediction? Why or Why not?
Ranking
1st, 2nd,
etc..
CONCLUSION:
LAB STATION 2: TYPES OF REFLECTION:
Type of
Reflection
Ray Diagram
Interaction with Light
type of surface: _______________
regular
bounce off in the _______
____________
reflected rays stay _______________ to
each other
image is ________________
type of surface:
_____________________
diffuse
each ray is reflected at a
____________
angle
the light is _________________
LAB STATION 3: WHICH EYE IS WINKING AT YOU:
Winking your right eye into a mirror – what happens?
With 2 mirrors 90° to each other, when you wink your right eye – what
happens?
Any possible explanation for this?
LAB STATION 4: DESCRIBE IT
Classify each of the following objects, as to whether they would give a regular
reflection or a diffuse reflection
OBJECT – DESCRIBE IT
WHAT TYPE OF REFLECTION
WOULD YOU GET?
1.
2.
3.
4.
5.
LAB STATION 5: ANGLES – THE LAW OF REFLECTION:
1. The _________________ ray is the ray that goes into an object and bounces off
as a ________________ beam, giving regular reflection.
2. What type of surface gives the best reflections?
3. Examples of objects that allow you to see your image are: still _____________,
____________________, __________________, or even _____________
______________. The one that gives you the clearest reflection is a
_____________ (flat) __________.
LAB STATION 6: ANGLES PRACTICE:
PROBLEM: What rule can you make that described how light reflects off a flat
mirror?
HYPOTHESIS:
VARIABLES:
Manipulated: ______________________________________
Responding: _______________________________________
Controlled: ________________________________________
OBSERVATION DRAWING:
Mirror 
ANAYLYSIS QUESTIONS:
a. Label the diagram above using these words: incident ray, angle of
incidence, reflecting surface, normal, angle of reflection and reflected ray.
b. Using a protractor measure the angle of incidence= _______°
c. Using a protractor measure the angle of reflection= _______°
d. What happens to the angle of reflection when you increase the angle of
incident?
CONCLUSION: The “LAW OF REFLECTION” states that….
TOPIC 2.3-REFLECTING LIGHT WITH CURVED MIRRORS
LAB STATION 7: CONCAVE MIRRORS
1. A mirror that is curved inwards like a bowl is called a ________________
mirror.
2. Look at the inside of a spoon. Describe what you see.
3. Look at the concave mirror. What does the reflection look like.
4. What happens when you move far away from the mirror?
5. What happens when you move really close to the mirror?
6. Sketch a ray diagram of a concave mirror that has a light source hitting it.
Note that the rays follow the Law of Reflection!
7. The place where the light rays all head to a common point is called the
__________________ __________________.
8. Because of the shape of a concave mirror they are very good at ___________
____________ and ________________ it to a ______________ __________________.
9. Explain where concave mirrors are used and why.
10.Make a ray diagram using a light bulb at the focal point of a concave
mirror, such as a flashlight or car headlight.
11.Explain what an image looks when the object is outside the focal point and
what happens as the object approaches the focal point.
12.When using a concave mirror, explain when you get an image that is
upright and enlarged?
LAB STATION 8: CONVEX MIRRORS
1.
A mirror with the surface curved outwards is called a ____________
________.
2.
Look at the outside of a spoon. Describe what you see.
3.
Look at the convex mirror supplied. What does the reflection look like?
4.
What happens when you move far away from the mirror?
5.
What happens when you move very close to the mirror?
6.
Sketch a ray diagram of a convex mirror that has a light source
hitting it. Note: the rays follow the Law of Reflection!
7.
Describe what type of image you get when using a convex mirror.
8.
What warning message do some convex mirrors have on them?