Thermal Energy
What happens to the molecules of an object when its temperature increases?
The energy in its molecules increases.
equilibrium
A balanced state in which a system in stable.
What captures human energy through motion?
A system can capture human energy through any kind of motion.
Question 4
A
What is a consumer population?
A population that eats organisms from another population.
What is the measure of how hot or cold something is?
Temperature
energy
the ability to make something move or change
What is potential energy?
Stored energy and the ability to make something change even if it is not changing now.
Question 9
D
When does a population increase?
When there are more births than deaths.
How do molecules behave in an object with a higher temperature compared to a lower temperature?
The molecules are moving faster in the higher temperature object.
consumer population
a population that eats organisms from another population.
How can energy be converted from one type to another?
By changing forms, such as from kinetic to potential energy.
Question 10
B
What does stability mean in a population?
It means that something stays mostly the same over time.
What is equilibrium in the context of temperature?
A balanced state in which a system is stable, such as when two or more samples are at the same temperature.
transfer
to move from one object to another or one place to another
What is the difference between transfer and convert?
Transfer is to move from one place to another, while convert is to change forms.
Question 18
D
How does reproduction affect population size?
Reproduction creates offspring, which can lead to an increase in population size.
Explain what is meant by energy transfer.
Energy can be moved from one object to another.
sample
a small part that is meant to show what the whole is like
Provide an example of how energy is transferred.
When a moving object hits another object and transfers its energy to it.
Question 19
B
What happens in a stable population regarding births and deaths?
The number of births in a population is the same as the number of deaths over a period of time.