input with options: Answer the following question given this paragraph: When a series of straight waves strike an impenetrable barrier, the waves stop at the barrier. However, the last particle of the medium at the back corner of the barrier will create circular waves from that point, called the point source. This can be seen in the image below. This phenomenon is called diffraction , and it occurs in liquid, sound, and light waves. While the waves become circular waves at the point source, they continue as straight waves where the barrier does not interfere with the waves. Q: What is the phenomenon in which light and sound waves become circular at the point source of a barrier? A:
OPTIONS:
- refraction
- sonic wave
- reflection
- diffraction
output: diffraction

Q: Answer the following question given this paragraph: 6.3 The Laws of Thermodynamics In studying energy, scientists use the term "system" to refer to the matter and its environment involved in energy transfers. Everything outside of the system is called the surroundings. Single cells are biological systems. Systems can be thought of as having a certain amount of order. It takes energy to make a system more ordered. The more ordered a system is, the lower its entropy. Entropy is a measure of the disorder of a system. As a system becomes more disordered, the lower its energy and the higher its entropy become. A series of laws, called the laws of thermodynamics, describe the properties and processes of energy transfer. The first law states that the total amount of energy in the universe is constant. This means that energy can't be created or destroyed, only transferred or transformed. The second law of thermodynamics states that every energy transfer involves some loss of energy in an unusable form, such as heat energy, resulting in a more disordered system. In other words, no energy transfer is completely efficient and tends toward disorder. Q: In studying energy, what term do scientists use to refer to the matter and its environment involved in energy transfers? A:

OPTIONS:
- molecule
- ecosystem
- world
- system

A: system

input: OPTIONS:
- dorsal fin
- tail fin
- under belly
- gills Now, answer this question: Answer the following question given this paragraph: In order to absorb oxygen from the water, fish use gills ( Figure below ). Gills take dissolved oxygen from water as the water flows over the surface of the gill. Q: What part of the body do fish use to absorb oxygen? A:
A:
output: gills

Answer the following question given this paragraph: Light is a wave of changing electric and magnetic fields. Light waves are caused by disturbances in an electromagnetic field, like the acceleration of charged particles (such as electrons). Light has a dual nature; at times, it acts like waves, while at other times it acts like particles, called photons . Light travels through space at the maximum speed allowed by the laws of physics, called the speed of light. Light has no mass, but it carries energy and momentum. Fermat's principle states that light will always take the path that takes the least amount of time (not distance). Q: Fermat's principle states that what will always take the path that takes the least amount of time? A:

OPTIONS:
- sound
- wind
- electricity
- light

Answer: light

Problem: OPTIONS:
- quasar
- quota
- quasi
- quanta
Q: Answer the following question given this paragraph: Energy comes in discrete packages called quanta. Q: Energy comes in discrete packages called what? A:
Answer: quanta

Answer the following question given this paragraph: Wave speed is related to both wavelength and wave frequency. Wavelength is the distance between two corresponding points on adjacent waves. Wave frequency is the number of waves that pass a fixed point in a given amount of time. This equation shows how the three factors are related:. Q: In physics, the number of waves that pass a fixed point in a given amount time is referred to as what ? A:

OPTIONS:
- combination frequency
- wave count
- creation frequency
- wave frequency

Answer:
wave frequency