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Science 2017 20 questions
Terms in this set (20)
What is frequency?
The number of waves that pass a given point in a certain amount of time.
How are atoms and molecules different?
toms are the tiny particles that are the building rocks of all chemical elements and molecules are The building blocks of matter, made up of atoms joined by bonds.
Define Light energy.
The energy involved in the motion of electromagnetic waves.
What is a wavelength?
The distance between two corresponding points on successive waves, peak-to-peak or trough to trough.
Are hands kens opaque or transparent?
Why is aluminum foil opaque?
Because it reflects light right back to the source.
Are a mirror and aluminum foil similar?
Yes, they both are opaque and reflect light.
True or false: Sound travels fastest through a solid.
What happens when light reflects off a prism?
It reflects and makes a rainbow.
Whats a trough?
The lowest part of a wave.
Whats a peak?
The highest part of a wave.
True or False: Low frequency has low wavelength.
True or False: low wave length high frequency.
What is is produced by vibrating objects and vibrating columns of air?
True or False: A solid is matter with atoms or molecules that are very close together and move in a regular pattern.
True or False: Gas is matter with atoms or molecules that are close together and move in a random motion.
True or False: Sound Waves are made up of electrical fields and magnetic fields that vibrate at right angles to one another in the direction of the wave. Light waves do not need matter or a medium in which to travel.
What does not need matter in which to travel?
Nuclear Reaction is....
The breaking apart or joining of nuclei within atoms
True or False: Heat energy is energy transition
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