A system of using the reflection of underwater sound waves is...
What is sonar.
100
The form of energy in fossil fuels is _________ energy.
What is chemical.
100
Viscosity is a measure of a fluids ______________.
What is resistance to flow.
100
Complete the phrase...
For every action there is...
What is an equal and opposite reaction.
100
The three basic components of an atom are...
What is proton, neutron and electron.
200
Which two particles would be attracted to each other?
What is proton and electron.
200
What force keeps a satellite in orbit?
What is centripetal force.
200
What is a term for a speed at any instant in time?
What is instantaneous speed.
200
An atom that gains electrons become an ion with a __________ charge.
What is negative.
200
When temperature increases, average __________ increases.
What is kinetic energy.
300
Temperature is a measure of the ___________ of the particles in an object.
What is average kinetic energy.
300
Which type of electromagnetic radiation has the longest wavelength?
What is radio waves.
300
Which electrons do dot diagrams represent?
What is outer electrons (valence electrons)
300
Acceleration involves a change in... (2 part answer!)
What is speed and direction.
300
How many electrons are needed in the outer energy levels of most atoms for the atom to be chemically stable?
What is 8.
400
The law of conservation of energy states which of the following?
1. Energy can be transformed from one for to another.
2. Energy is neither created not destroyed.
3. Waste energy is not easily used to do useful work.
What is 1 & 2
400
Charles's Law describes the direction relationship of ______________ and ___________ of a gas.
What is temperature and volume.
400
Give an example of a chemical change.
What is burning wood
400
What would happen to energy in an EXOthermic reaction?
What is be released or exit.
400
Finish the sentence
The law of conservation of mass state that all atoms present at the start of the chemical reaction ......
What is are still present at the end of the reaction.
500
Two or more mixtures that are physically blended but are not chemically bonded are called...
1. mixtures
2. solvents
3. indicators
4. concentrations
What is mixtures.
500
Stainless steel is an example of a ________ solution.
1. liquid-solid
2. solid-liquid
3. solid-solid
4. gas-solid
What is 3.
500
What can you do to water to increase its solubility?