Forces Chapter 5 Question Preview (ID: 33564)
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What happens to the molecules at 273 K?
a) There is no energy or no movement of particles
b) Water freezes
c) Water boils
d) Nothing is a normal temperature
What is heat?
a) The movement of thermal energy from a warmer objects to a cooler object
b) The movement of heat from a warm object to cool object
c) The amount of energy required to raise temperature 1 kg of a substance by 1 K
d) A material that conducts heat poorly
What occurs only from warm objects to colder ones?
a) Heat transfer
b) Cold transfer
c) Particle transfer
d) Energy transfer
What is an insulator?
a) A material that conducts heat poorly
b) A material that conducts heat well
c) A new material made of cotton
d) A new material that glows
What is specific heat?
a) The amount of energy needed to raise the temp of 1 kg of substance by 1 K
b) The amount of energy needed to raise the temp of 1 g of substance by 1 K
c) The amount of energy needed to raise the temp of 1 kg of substance by 1 C
d) The amount of energy needed to raise the temp of 1 kg of substance by 1 F
What is thermal expansion?
a) When thermal energy of matter increase and the particles spread out
b) When kinetic energy of matter increase and the particles spread out
c) When thermal energy of matter increase and the particles come closer
d) When kinetic energy of matter increase and the particles come closer
What is an example of convection?
a) When heated air moves from baseboard heaters to the rest of a room
b) When a pot is heated on the stove
c) When a baseball is thrown
d) When the sun warms your skin
What is temperature?
a) A measure of the average kinetic energy of the individual particles in an object
b) A measure of the average thermal energy of the individual particles in an object
c) A measure of how hot or cold things are
d) A measure of particles in an object
A one degree change in the Celsius scale is equal to a one degree change in what other temperature scale?
a) Kelvin
b) Fahrenheit
c) Hot Scale
d) Cold Scale
What is an example of thermal expansion?
a) Train Tracks
b) Pot on the stove
c) Squirrel running
d) Your clothes
Iron has a higher specific heat than silver. Both absorb the same amount of heat which will have a great temperature change?
a) Silver
b) Iron
c) Water
d) Air
Which is the highest temperature: 50 C 50 F 50 K ?
a) 50 K
b) 50 C
c) 50 F
d) None of them
What is a good insulator because it reduces heat transfer?
a) Trapped Air
b) copper
c) steal
d) nickel
What kind of energy increases as the temperature and number of molecules increase?
a) Thermal Energy
b) Kinetic Energy
c) Energy
d) Potential Energy
The temperature would be the same in both beakers if what energy is the same?
a) Kinetic energy
b) Thermal energy
c) Energy
d) Potential energy
As air gets warmer it rises, as it gets colder it sinks. What science term is this describing?
a) Density
b) Potential Energy
c) Kinetic Energy
d) Newton's Laws
When conduction occurs what happens to the particles of the hotter item?
a) The particles from the warmer object make the particles in the cooler object move faster
b) The particles from the warmer object make the particles in the cooler object move slower
c) The particles from the cooler object make the particles in the cooler object move faster
d) The particles from the cooler object make the particles in the cooler object move slower
A temperature change is greater on which scale?
a) Celsius; larger scale and 100 degrees between freezing and boiling water
b) Fahrenheit; larger scale and 100 degrees between freezing and boiling water
c) Celsius; smaller scale and used more across the globe
d) Fahrenheit; smaller scale and used just in the US
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