
Ray Model of Light (Lesson 2)
Presentation
•
Science, Physics
•
7th Grade
•
Practice Problem
•
Easy
Yvonne Tan
Used 25+ times
FREE Resource
18 Slides • 11 Questions
1
Ray Model of Light
Lesson TWO
Complete Pg 9&10 of Activity Book
2
What is a PLANE mirror?
The diagram on the right is an example of a plane mirror.
3
There are FIVE characteristics of images formed by plane mirror.
To say that you have learnt well.... you need to remember all FIVE by the end of this lesson.
4
Poll
Have you seen yourself in the mirror?
Yes, but I don't know how to describe my image.
Of course and I know how to describe my image.
No, I don't observe my image in the mirror.
5
1. Image is the same size as the object.
Look at yourself in the mirror.
6
Multiple Choice
Characteristics of image formed by mirror. Choose the correct one.
Image is the same size as object.
Image is larger than the object.
Image is smaller than the object.
7
2. The distance from object to mirror is equal to the distance of image to mirror.
look at a = b in the diagram
8
Multiple Choice
Characteristics of image formed by mirror. Choose the correct one.
The distance of image to mirror is smaller than the distance of object to mirror.
The distance of image to mirror is larger than the distance of object to mirror.
The distance of image to mirror is equal to the distance of object to mirror.
9
Multiple Choice
If the distance of the object to the mirror is 2 cm, what is the distance of the image to the mirror?
1 cm
2 cm
3 cm
4 cm
10
3. Image is laterally inverted.
When you raise your right hand, it looks like your left in the mirror! Have a try at it.
11
Multiple Choice
The image of an object in a plane mirror is....
inverted
vertically inverted
laterally inverted
horizontally inverted
12
Multiple Choice
Which diagram shows the correct image of the object?
13
4. Image is upright.
This means.... your head is still up there, and your feet is at the bottom. You are NOT INVERTED.
14
Multiple Choice
The image of an object in a plane mirror is....
upright
inverted
15
5. Image is virtual.
Cannot be captured on a screen, or NOT REAL!
16
Multiple Choice
The image cannot be captured on a screen. It means the image is
real
virtual
17
Turn to Activity Book Page 9 Question 3 to tick the correct answers. Once you are done, you may check the answers on the next slide.
18
19
Multiple Select
Test yourself again! Which are the correct descriptions of image formed by a plane mirror? Choose 2.
The image is real.
The image is virtual.
The image is inverted.
The image is diminished.
The image is laterally inverted.
20
Multiple Select
Which of these are true about images formed by a plane mirror? Choose 2.
The image is the same size as the object.
The image is larger than the object.
The distance between the image and the mirror is equal to the distance between the object and the mirror.
The distance between the image and the mirror is different from the distance between the object and the mirror.
21
Complete the next 2 questions in Activity Book Page 10.
22
What is the distance between the image of the chart and the mirror?
Did you get it right?
Answer should be 3.5 m.
23
24
Did you think of this:
3.5 m + 2.5 m = 6.0 m
25
26
Can you picture how the image will look like?
27
Can you find the correct image for Q5 on Pg 10?
28
Pg 10 Q5
29
Open Ended
Name two characteristics of image formed by plane mirror.
(You must be able to recall!)
Ray Model of Light
Lesson TWO
Complete Pg 9&10 of Activity Book
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