Gravitational Lensing Occurs When

question 103

Multiple Choice

Gravitational lensing occurs when

• A)massive objects bend light beams that are passing nearby.
• B)massive objects cause more distant objects to appear much larger than they should and we can observe the distant objects with better resolution.
• C)dark matter builds up in a particular region of space,leading to a very dense region and an extremely high mass-to-light ratio.
• D)telescope lenses are distorted by gravity.

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Definitions:

Reinforcement

A concept in behavioral psychology where a behavior is strengthened or increased by following it with a positive or rewarding stimulus.

Stimulus Discrimination

The ability to differentiate between two or more stimuli, responding only to the one that is conditioned while ignoring the others.

Learned Response

A reaction or behavior that is developed as a result of experience or conditioning.

Stimulus Generalization

The process by which a conditioned response is triggered by stimuli that are similar to the original conditioned stimulus.