Paragraph: (Science-textbook/science-g4-141.txt)
Sent 1: Light rays strike a reflecting surface.
Sent 2: They are then reflected back.
Sent 3: You can predict the angle of the reflected light.
Sent 4: Imagine a ball bouncing off a surface.
Sent 5: Light can do the same thing.
Sent 6: That is, assuming the surface is shiny.
Sent 7: So how do you know where light will go after it strikes a shiny surface?
Sent 8: It depends on how the light initially strikes the shiny object.
Sent 9: Light does not always go straight toward a surface.
Sent 10: Therefore, not all light bounces straight back.
Sent 11: Sometimes, light can hit a surface at an angle.
Sent 12: The angle at which it strikes the surface tells us how it will bounce off.
Sent 13: While light is different to a ball, they react in a similar manner.
Sent 14: Many sports rely on knowledge of reflection.
Sent 15: Pool players know a lot about reflection.
Sent 16: They take great care when they strike the pool ball.
Sent 17: They need it to go to a certain place.
Sent 18: They know the angle it will hit the side of the pool table.

Question: What determines how a ball will bounce off a surface? (false/challenge)

The angle at which it strikes the surface.
A shiny surface.
The temperature
The lighting conditions

Question: Do pool players use the principles of reflection to get a ball to go to a certain place? (false/additional)

Yes, they do.
Although they know alot of reflection they typically do not use the principles....
No

Question: What happens after light rays strike a reflecting surface? (false/challenge)

Question: When light hits the surface at an angle, what can the angle indicate? (false/challenge)

The angle can indicate how the light will bounce off the surface.
How the light will bounce off.
how much the light will shine
It says how shiny the object is.

Question: What information is useful to pool players when they strike a ball? (false/additional)

They need to know about reflection
Knowledge of reflection enables the pool player to hit the ball at a certain angle in order to go to a certain place.
The knowlege and patience to strike the pool ball at certain spot.
They need to know about swimming.
they need to know how to strike a ball in soccer

Question: What is needed for light to bounce off a surface? (false/additional)

For the surface to be shiny.
A strong and sturdy surface.
the surface needs many angles
The light has to be powertful enough

Question: What sport relies on knowledge of reflection? (false/additional)

Pool
Swimming
basketball
Swimming in a pool

Question: What can bounce off a surface similar to a ball? (false/challenge)

Light.
Pool table
Pool water
Shiny objects

Question: How does knowledge of reflection help pool players? (false/challenge)

You can predict the angle of the reflected light. They need it to go to a certain place. They know the angle it will hit the side of the pool table.
They can know the angle the ball will hit the side of the pool table
they can know the best position for them to play
They know how fast to hit the ball.
They need it before swimming in a pool.

Question: What has to be true in order to use a knowledge of reflection to help in sports? (false/challenge)

The surface is shiny on the area being used to judge the reflection.
A soft and blurry surface can lead to a good reflection.
The knowledge of ball sizes could help.
The knowledge of friction could help.

Question: Why doesn't all light bounce straight back when reflected off of a surface? (false/additional)

It depends on how the light initially strikes the shiny object. Light does not always go straight toward a surface. Therefore, not all light bounces straight back.
because light can disapear after some time.

Question: What type of people know alot about reflection? (false/additional)

Last updated: Mon Apr 16 04:55:33 EDT 2018
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