Sound
Dynamics
Chemical Reactions
Bonding and Compounds
The Periodic Table
200
This uses ultrasound to create images of objects found in different objects.
What is Sonography?
200
This law states the acceleration of an object is directly proportional to the net force acting on the object and is inversely proportional to its mass.
What is the law of acceleration?
200
A process that changes a substance into one or more different substances.
What is a chemical reaction?
200
An electrostatic attraction that forms between atoms when they share or transfer valence electrons.
What is a chemical bond?
200
This law states that the properties of the elements vary in a periodic way with their atomic numbers.
What is the periodic law?
400
A type of energy that can be transmitted as waves through a medium, either a gas liquid, or solid.
What is sound energy?
400
The branch of physics that studies these forced and how they can change an objects motion.
What is dynamics?
400
A combination of chemical formulas and symbols that models a chemical reaction.
What is a chemical equation?
400
A chemical bond formed as the result of two atoms sharing electrons.
What is a covalent bond?
400
This person played a crucial role in our understanding of the elements.
Who is Antoine Lavoisier?
600
DAILY DOUBLE!!!!!!!!!!!
This person in 1708-1709 was the first person to accurately measure the speed of sound through air.
Who is William Derham?
600
This law states that for every action force, there is an equal and opposite reaction force.
What is the law of action?
600
DAILY DOUBLE!!!!!!!!!!
A reaction in which a single reactant breaks down into two or more products.
What is a decompostion reaction?
600
Molecules made of two atoms, whether of the same element or not.
What are diatomic molecules?
600
This German chemist made a key discovery while studying properties of the elements in the early 1800s.
Who is Johann Dobereiner?
800
A measure of the power contained in a sound wave and also indicated by the amplitude of the wave's.
What is intensity?
800
These forces only act when an object touches another.
What is contact forces?
800
The number placed in front of a chemical formula within a chemical equation.
What is a coefficient?
800
The name we use for unequal distribution of electrical charge.
What is polarity?
800
This person came up with system that would become the accepted standard.
Who is Jacob Berzelius?
1000
A combination of tones that make any sound distinctive.
What is Timbre?
1000
This law states that an object at rest, remain at rest, an objects continue in a straight line at a constant velocity unless acted on by a net external force.
What is law of inertia?
1000
This law states that during a chemical reaction no energy is created or destroyed, but only changed from one form to another.
What is the law of conservation of energy?
1000
A shorthand way of identifying a chemical compound.
What is a chemical formula?
1000
The number of elements we know today.
What is 118 elements?