ACTIVITY 5. CHECK YOUR KNOWLEGDE.
Direction: Write the letter S, T, A, or R before the number which
corresponds to the description of the pair of statements given.
WRITE:
S – if statement A is true and statement B is false
T - if statement A is false and statement B is true
A – if statement A and B are both true
R – if statement A and B are both false
_____ 1. A. The sun is the brightest star.
B. The Sun is the brightest star as seen from earth.
_____ 2. A. Stars have different brightness.
B. Stars differ in brightness in apparent and absolute magnitude.
_____ 3. A. Apparent magnitude is the brightness of star as seen from earth.
B. Apparent magnitude is the actual brightness of the star.
_____ 4. A. Absolute magnitude is the brightness of a star as seen from
earth.
B. Absolute magnitude is the actual brightness of a star.
_____ 5. A. Both apparent and absolute magnitude have the same brightness
in a scale.
B. Apparent and absolute magnitude have different brightness in a
scale.

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