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Ch.2 Science 8th

Matter, Energy, and Forces

QuestionAnswer
What do geologists study? Gravity
What three energies does the sun use? Thermal, light, and electrical
What is it called when a solid disappears straight to a gas? Vaporization
What is it called when frost forms on windshield over night? Deposition
Ice cube "shrinks" in freezer? Sublimation
What is the day-age theory? Non literal days in creation. Scientists believe these days were longer than 24 hr. days.
What is linked to gravity? Weight
What is always in the nucleus? Proton. Never moves. (Can't.)
Kinetic energy? Must always be moving!
Flow of thermal energy from hot to cool? Heat
What are the three field forces? Magnetism, Gravity, and Electricity
Which state possesses the most energy? Plasma
What do you use to measure the weight of an object? Spring Scale
Liters, cubic inches, quarts, and milliliters measure what? Volume
What takes place when lightning strikes a spruce tree and lights in on fire? Chemical Change
Which state possesses most energy? Plasma
How do you measure the weight of an object? Spring scale
Liters, cubic inches, milliliters, and quarts measure? Volume
What takes place when lightning strikes a spruce tree and sets it on fire? Chemical Change
What is energy? The ability to do work.
When particles join together, what 3D figure forms? Crystal
What affects atoms and how they move? Temperature
What is matter? Anything that occupies space and has mass.
One example of a mixture? Sweet tea.
Example of a pure substance? Solid aluminum
What is the height of a wave? Amplitude
What are the protons in the nucleus called? Atomic number
What do geologists study? Gravity.
What three energies does the sun use? Thermal, light, and electrical.
What is it called when a solid turns straight to a gas? Vaporization
What takes place when frost forms on a windshield over night? Deposition
When an ice cube "shrinks" in freezer? Sublimation
What is the day age theory? Non Literal days. Scientists believe these day were not 24 hr. days.
What is linked to gravity? Weight
What is ALWAYS in the nucleus? Protons.
Kinetic energy? Always be moving.
Flow of thermal energy from hot to cool? Heat
Three field forces? Magnetism, gravity, and electricity.
What is work? As a scientific definition, work is done when a force acts on a moving object in the same or opposite direction of its motion.
What is mass? Amount of matter an object contains.
What is compression? Forces or stresses that act to squeeze or crush an object or substance.
What is friction? Friction opposes the motion of objects in contact.
What three things affects a field forces strength? Magnetic, electric, and gravity.?
How do weight and mass relate? Weight refers to the gravitational pull exerted on an object by another very large object, such as the earth. Mass is the amount of matter in an object.
Created by: malloryywatson
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