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Matter/Forces/Energy

Grade 8 - Ch. 2 Matter/Forces/Energy

QuestionAnswer
What is the purpose of the Large Hadron Collider? To create matter in an effort to explain how the universe was created.
What is matter? Anything that occupies space and has mass.
What are the characteristics of a solid? A solid has a definite shape and volume.
What are the characteristics of a liquid? A liquid has no definite shape but has definite volume.
What are the characteristics of a gas? A gas has no definite shape or volume
What mostly affects a substance's state of matter? Temperature
What state of matter possesses the most energy? Plasma
A stalactite on the roof of a cave is an example of what force? Tension
What is the definition of a field force? A force that acts on an object from a separated distance.
What is the definition of a contact force? A force that occurs when objects touch each other.
What are three types of field forces? Magnetic, Electrical, and Gravity
What are four types of contact forces? Compression, Friction, Shear and Tension
What force is most important to geologists? Gravity
What is the ability to do work? Energy
What is kinetic energy? Energy of a moving object
What is potential energy? The potential of an object to move
What is kinetic energy most affected by? Speed
What is potential energy most affected by? Height of an object.
What is the flow of thermal energy from a hot place to a cooler place? Heat
What type of sound is caused by vibrations that are too slow for humans ears to detect? Infrasonic
What type of sound is caused by vibrations that are too fast for human ears to detect? Ultrasonic
What type of sound is caused by vibrations that are easily detected by human ears? Audible
What subatomic particle is ALWAYS located in the nucleus? Proton
What are the three subatomic particles of an atom? Proton, Neutron, and Electron
What is the charge of a proton? Positive
What is the charge of a neutron? Neutral
What is the charge of an electron? Negative
What is an object that has repeating, three-dimensional pattern? Crystal
What changes on the moon, your mass or weight? Weight
What affects weight? Gravity
What is found in the nucleus of an atom? Proton and Neutrons
What do all forces act in? Pairs
What are two types of vaporization? Boiling and Evaporation
What state of change is occurring when the surface of a pond becomes solid? Freezing
What state of change is occurring when a cup of water disappears when left in the sun? Vaporization
What state of change is occurring when frost forms on the grass? Deposition
What state of change is occurring when ice cubes "shrink" while in a freezer. Sublimation
What state of change is occurring when droplets of water form on the outside of a cold drink? Condensation
What state of change is occurring when an ice cube becomes a puddle of water? Melting
What energy source creates Aurora Borealis, The Northern Lights? Magnetic Energy
What is an example of a molecule, compound and pure substance? Water
What type of change is occurring when matter changes in a way that doesn't change its identity? Physical Change
What type of change is occurring when matter changes from one substance to another? Chemical Change
What law states that matter and energy cannot be created or destroyed? 1st Law of Thermodynamics
What force opposes all motion on earth? Friction
Created by: kpmueller
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