# MCAT physics

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1. sin and cos 30 degrees?
sin 30 = 1/2

cos 30 = sqrt 3 /2
2. What is the sin and cos of 0
sin 0 = 0

cos 0 = 1
3. What is the sin and cos of 45 degrees
.7
4. transverse wave
A transverse wave is a wave that causes vibration in the medium in a perpendicular direction to its own motion.

ex: electromagnetic waves (LIGHT)
5. Longitudinal Wave
Longitudinal waves are waves that have vibrations along or parallel to their direction of travel.
6. Is a diverging lens and diverging mirrors always have negative or positive focal length?
negative
7. What kind of lens or mirror can produce a real image?
• only a converging lens or converging mirror can produce a real image
• -->light rays must converge at one point in order to focus the image
8. A convex mirror is converging or diverging?
A convex mirror is diverging = DEV - diminished, erect (upright), virtual
9. real or virtual:    o > f
REAL

• If  o > f
• the magnification is negative
10. Real or virtual:  o < f
image distance will be negative and the image is virtual
11. A convex mirror always produces what kind of image?
virtual, because it is a diverging mirror
12. MIRRORS:    Images that are virtual are always in front or behind the mirror?
For mirrors images that are virtual are behind the mirror but for a lens, virtual images are found in front of the lens (same side as object)
 Author: lace.granatelli ID: 183785 Card Set: MCAT physics Updated: 2013-05-23 02:08:37 Tags: MCAT physics Folders: Description: MCAT physics Show Answers: