
WALA: LIGHT CHANGES DIRECTION
Presentation
•
Science
•
5th Grade
•
Hard
Peter Siabei
Used 6+ times
FREE Resource
6 Slides • 0 Questions
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WALA: LIGHT CHANGES DIRECTION
L.O: to explore why a beam of light changes direction when it is reflected from a surface.
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INTRODUCTION
Have two soccer balls.
Choose two students.
Ask them to bounce as shown on the two photos.
Choose two other students and do the same.
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EXPLANATION
If Ann throws a ball down, it bounces straight back at him.
In the second picture, Ann throws a ball at an angle and it bounces off the floor at the same angle away from him.
When bouncing a ball, the angle the ball makes when it hits the ground looks the same as the angle it bounces off the ground again.
Explain
A ray – a line that light travels in.
Angle- the number of degrees between a horizontal and a line.
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Light reflects off a mirror in a similar way.
Light reflects from a mirror at the same angle as it arrives.
The picture shows how light travels when it reflects with lines and arrows.
(draw the picture)
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Conclusion
End the lesson by asking oral questions
WALA: LIGHT CHANGES DIRECTION
L.O: to explore why a beam of light changes direction when it is reflected from a surface.
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