ANSWERS WITH SOLUTIONS 2024
What is matter? - ANSWER Matter is what all things are made of. It's the foundation for any discussion of
physics
What is the Law of Conservation? - ANSWER Matter can not be created or destroyed but it is possible to
change it's physical state
What's an example of the law of conservation? - ANSWER the combustion process of liquid fuel or water
from solid to liquid to vapor among others
How is mass mathematically stated? - ANSWER Mass=Weight divided by Acceleration due to gravity
How is weight mathematically stated? - ANSWER Weight=mass x gravity
What is the only way to change the mass of an object? - ANSWER to add or take away atoms
What is weight? - ANSWER a measure of the pull of gravity acting on the mass of an object
What are the six characteristics of matter? - ANSWER Mass and weight
Attraction
Porosity
Impenetrability
Density
Specific Gravity
What is mass? - ANSWER a measure of the quantity of matter in an object
What is density? - ANSWER the weight of a substance per unit of volume
, The density of a gas______ in direct proportion to the _____ exerted on it. - ANSWER Increases pressure
What is the standard chosen by physicists when comparing the densities of all liquids and solids? -
ANSWER Water
What is most commonly used as the standard when comparing the densities gasses - ANSWER Air
Why is the specific gravity of water (1,000) different than the specific gravity of ice? - ANSWER
Temperature
What device is used to measure the specific gravity of a liquid? - ANSWER a hydrometer
What is energy? - ANSWER something that gives us the capacity to perform work
What are the two types of energy? - ANSWER Potential and kinetic
Energy at rest is said to be what type of energy? - ANSWER Potential
What are the 3 classifications of potential energy? - ANSWER that due to position
that due to distortion of an elastic body
that which produces work through chemical action
What is kinetic energy? - ANSWER Energy being in motion
What is force? - ANSWER The intensity of an impetus, or the intensity of an input
What is the unit for force is both english and metric systems? - ANSWER English-pounds
Metric-newtons