What does the Law of Conservation of Energy state?
Energy cannot be created or destroyed, it only changes forms.
100
A stainless steel pot has a layer of copper applied to the bottom to help it heat evenly. The copper transfers heat to the pan through...
What is conduction?
100
The process of of radiant energy being changed to chemical energy, helping a flower bloom.
What is photosynthesis?
100
This is a type of energy that travels in waves and can travel through empty space.
What is radiant energy?
100
The temperature at which a liquid changes to a gas?
What is boiling point?
200
This type of energy travels in vibrations.
What is sound energy?
200
In a liquid or gas, currents will facilitate this type of heat transfer.
What is convection?
200
Describe the energy transformation in a solar powered calculator.
The calculator is exposed to radiant or light energy, which powers it on and is converted to electrical energy.
200
If the atomic number of an element is 78 and its mass number is 146, how many neutrons are contained in the nucleus?
What is 68?
200
An atom that loses or gains electrons is called a(n)?
Ion
300
What are the ten forms of energy?
Chemical
Nuclear
Gravitational
Radiant or Solar
Electrical
Mechanical
Sound
Thermal
Potential
Kinetic
300
The type of heat transfer through space or electromagnetic waves.
What is radiation?
300
Describe the energy transformation is a lamp?
Electrical energy is being transformed to light energy and thermal energy.
300
You can find the mass number of an atom is by adding the number of .....
protons and neutrons
300
Any substance that cannot be broken down into simpler substances.
What is an element?
400
This type of energy is stored in the nucleus of an atom; released when nucleus splits or combines
What is nuclear energy?
400
In a swimming pool, the water near the surface is slightly
warmer. The warm water rises because of....
What is convection?
400
Give an example of radiant energy being changed to thermal energy.
Ex: fire
400
This type of radiant energy can be used to kill germs BUT in people, it can cause sunburn, wrinkling, and skin cancer.
What are ultraviolet rays?
400
A reaction in which energy is given off.
What is an exothermic reaction?
500
As a roller coaster car goes up and down a hill, describe the transformation of its potential and kinetic energy.
As the rollercoaster begins, leading up to the top, that's when its potential energy is greatest. As it goes down the hill, that potential energy is transformed into kinetic energy.
500
A huge rock at the top of Stone Mountain park gets so hot during the day that you can’t sit on it from.....
What is radiation?
500
The _____ transforms nuclear and radiant energy into light, thermal, and many other forms of electromagnetic energy, helping us survive on Earth.
What is the sun?
500
An element that has the same number of protons but a different numbers of neutrons is called?
What is an isotope?
500
Name five physical properties.
color, smell, freezing point, boiling point, melting point, viscosity, density, volume, mass, etc.