Waves
Sound
Light
Energy
Coulomb's Law
100
What is a Transverse Wave?
In a transverse wave, the particles are displaced perpendicular to the direction the wave travels.
100
Sound can travel through empty space. True or False?
False. Sound needs a medium to travel through.
100
What type of wave is light?
Light is a transverse and electromagnetic wave. Both are correct.
100
Power is work over time. True or False
True
100
The force between two charged particles increases as the distance between them increases. True or False.
False, the force decreases as the distance increases.
200
What is a Longitudinal Wave?
In a longitudinal wave the particles are displaced parallel to the direction the wave travels.
200
Sound is a Transverse Wave. True or False?
False. Sound is a Longitudinal Wave.
200
The bouncing of light off a surface.
Reflection
200
KE=1/2mv2 If an acorn has a mass of 3 kg and is moving at a rate of 12 m/s, how much kinetic energy does the acorn have?
The acorn has 216 J of Kinetic Energy
200
What is one difference between the Gravitation Equation & Coulomb's Law Equation?
One constant is really big, the other is really small. Gravitation the objects only attract one another, whereas with Coulomb's law the charged particles can either attract or repel.
300
What is the Relationship between period & frequency?
They have an Inverse Relationship. T=1/f & f=1/T.
300
Which is faster Sound or Light?
Light
300
Which does light travel fastest through?
A) Solids B) Liquids C) Gasses D) Empty Space
Empty Space
300
PE=mgh If a bowling ball has a mass of 40 kg and is dropped from an airplane that is 12,000 meters above the ground how much potential energy does the bowling ball have?
4,704,000 J of potential energy
300
What is the Unit of charge?
Coulomb
400
What is an example of refraction?
A straw in a clear cup of water.
400
The medium in which sound waves travel the slowest. a)Steel b)Water c)Air
Air
400
The bending of light as it moves from one material to another.
Refraction
400
The higher an object is above the ground the more Kinetic energy it has. True or False
False, The higher an object is above the ground the more Potential energy it has.
400
What happens to the force between two charged objects if you double the distance between them?
The force will be 1/4th its original size.
500
Wave do NOT transmit this. a)Sound b)Light c)Energy d)Matter
What is d)Matter
500
We perceive the amplitude of a sound wave to be _____.
Volume or Loudness
500
Does a light ray carry more or less energy than an ultraviolet ray?
Light carries less energy, it is further down the electromagnetic spectrum than ultraviolet rays.
500
A basketball falls from the rim of the hoop. If the basketball has 20 J of potential energy at the rim of the hoop, how much kinetic energy does it have just before hitting the ground?
20 J
500
When is the electrical force between to charges the biggest?
When they are close together and the charges are very large.