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Chapter 3 (Force and Motion) Review

An object is moving only if it changes positions relative to a ___________ _______________. reference point
The formula for speed is SPEED = _________________. distance/time
A _______________ exerted on an object causes it to accelerate. unbalanced
Newton’s First Law of Motion states that an object at _____ will remain at _______ unless acted upon by a force. rest; rest
_________________ forces do not change an object’s motion. Balanced
___________________ is a measure of the average kinetic energy of an object’s individual particles. Temperature
At room temperature, two glasses of water will have the same average ______________ energy. kinetic
Water freezes at _______________ on the Fahreneheit scale. 32 degrees
Water freezes at _______________ on the Celsius scale. 0 degrees
____________ ____________ is the total energy of all the particles in a substance. Thermal energy
_________________ is the transfer of thermal energy from a substance at one temperature to a substance at a different temperature. Heat
_________________ is the SI unit is used to measure heat. Joules
In the process of _________________, heat is transferred from one particle of matter to another in an object without the movement of the object itself. conduction
________________ is the movement that transfers heat within fluids. convection
Heated air moving from baseboard heaters throughout the room is an example of ______________________. convection
_________________ is the transfer of energy by electromagnetic waves. Radiation
Heat moves from only ___________ objects to _________ objects. warmer; colder
A material that does not conduct heat well is an ___________________. insulator
Plastic, air, and fiberglass are examples of _______________. insulators
_______________ is a good conductors. Metal (silver)
____________ __________ is the amount of energy required to raise the temperature of 1 kilogram of a substance by 1 Kelvin. Specific heat
_________ states of matter exist on Earth. Three
Gases have more __________ ___________ than liquids. thermal energy
___________ ___________ is the temperature at which a solid changes into liquid. Melting point
___________ ___________ is the temperature at which a liquid changes into solid. Freezing point
When liquid in a thermometer is heated it expands. This is an example of ______________ ________________. thermal expansion
Created by: lschramme