Question: Answer the following question given this paragraph: Mammals generate heat mainly by keeping their metabolic rate high. The cells of mammals have many more mitochondria than the cells of other animals. The extra mitochondria generate enough energy to keep the rate of metabolism high. Mammals can also generate little bursts of heat by shivering. Shivering occurs when many muscles contract a little bit all at once. Each muscle that contracts produces a small amount of heat. Q: Mammals generate heat primarily by maintaining a high rate of what? A:
OPTIONS:
- reproduction
- respiration
- movement
- metabolism
Answer: metabolism

input with options: Answer the following question given this paragraph: The half-life of titanium-44 is 60.0 y. A sample of titanium contains 0.600 g of titanium-44. How much remains after 100.0 y?. Q: Name the type of system that a jellyfish does not have? A:
OPTIONS:
- nervous
- reproductive
- hereditary
- circulatory
output: circulatory

Q: Answer the following question given this paragraph: The Van de Graaff Generator Van de Graaff generators (or Van de Graaffs) are not only spectacular devices used to demonstrate high voltage due to static electricitythey are also used for serious research. The first was built by Robert Van de Graaff in 1931 (based on original suggestions by Lord Kelvin) for use in nuclear physics research. Figure 18.38 shows a schematic of a large research version. Van de Graaffs utilize both smooth and pointed surfaces, and conductors and insulators to generate large static charges and, hence, large voltages. A very large excess charge can be deposited on the sphere, because it moves quickly to the outer surface. Practical limits arise because the large electric fields polarize and eventually ionize surrounding materials, creating free charges that neutralize excess charge or allow it to escape. Nevertheless, voltages of 15 million volts are well within practical limits. Q: Practical limits of van de graaff generators arise because the large electric fields polarize and eventually do what to surrounding materials? A:

OPTIONS:
- displace
- isolate
- decompose
- ionize

A: ionize

input: OPTIONS:
- yo-yo
- metronome
- pendant
- pendulum Now, answer this question: Answer the following question given this paragraph: Pendulums are in common usage. Some have crucial uses, such as in clocks; some are for fun, such as a child's swing; and some are just there, such as the sinker on a fishing line. For small displacements, a pendulum is a simple harmonic oscillator. A simple pendulum is defined to have an object that has a small mass, also known as the pendulum bob, which is suspended from a light wire or string, such as shown in Figure 16.14. Exploring the simple pendulum a bit further, we can discover the conditions under which it performs simple harmonic motion, and we can derive an interesting expression for its period. Q: What is the common name for a simple harmonic oscillator, which basically consists of a small object suspended on a wire or string? A:
A:
output: pendulum

Answer the following question given this paragraph: The temperature at which a liquid boils and starts changing to a gas is called its boiling point. The boiling point of pure water is 100C. Q: What do you call the temperature at which a liquid boils and starts changing to a gas? A:

OPTIONS:
- melting point
- transformation point
- vapor point
- boiling point

Answer: boiling point

Q: Answer the following question given this paragraph: Cooling or evaporation of fresh water from the sea surface makes surface water dense. This causes the surface water to undergo downwelling. Q: Cooling or evaporation of what from the sea surface makes surface water dense? A:

OPTIONS:
- dirty water
- salt water
- warm water
- fresh water

A:
fresh water