Kinetic Energy and Temperature | Chemistry

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Kinetic Energy and Temperature

10th - 12th grade

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Slide 1
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Kinetic Energy and Temperature
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Slide 2
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Kinetic Energy
energy possessed by an object in motion
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Slide 3
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Heat
thermal energy transferred between two objects
heat flows from hotter object to colder object
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Question 4
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Q.
The energy associated with motion is called
answer choices
kinetic energy
elastic potential energy
gravitational potential energy
nuclear energy
kinetic energy
alternatives
elastic potential energy
gravitational potential energy
nuclear energy
answer explanation
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Question 5
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Thermal energy is
answer choices
the energy of motion
energy of nuclear processes
an indication of a physical change
heat energy
the energy of motion
alternatives
energy of nuclear processes
an indication of a physical change
heat energy
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Question 6
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Hot objects begin to cool as
answer choices
cooler air is transferred to the hot object
atoms in the object react with the oxygen in the air
thermal energy in the object is transferred to the surrounding air
thermal energy in the object cancels out energy in the air
cooler air is transferred to the hot object
alternatives
atoms in the object react with the oxygen in the air
thermal energy in the object is transferred to the surrounding air
thermal energy in the object cancels out energy in the air
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Slide 7
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Temperature
related to the average kinetic energy
measure of how hot or cold an object is
increase temperature causes an increase of average kinetic energy
decrease in average kinetic energy causes a decrease in temperature
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Slide 8
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Temperature
measured in Celsius, Fahrenheit or Kelvin
Celsius: water freezes at 0 $\degree$ C and boils at 100 $\degree$ C

Fahrenheit: water freezes at 32 $\degree$ F and boils at 212 $\degree$ F
Kelvin: water freezes at 273 K and boils at 373 K
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Question 9
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Q.
At higher temperature
answer choices
particles in an object have less kinetic energy
particles in an object move faster
a gas contracts
particles in ab object move slower
particles in an object have less kinetic energy
alternatives
particles in an object move faster
a gas contracts
particles in ab object move slower
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Question 10
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Which of the following is TRUE when particles GAIN thermal energy?
answer choices
particles move more slowly
particles stop moving
particles move further apart
particles move closer together
particles move more slowly
alternatives
particles stop moving
particles move further apart
particles move closer together
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Question 11
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What happens to particle movement/speed when energy is removed?
answer choices
particles slow down
particles go faster
particles don't move
particles stay the same speed
particles slow down
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particles go faster
particles don't move
particles stay the same speed
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Question 12
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The temperature of a substance increases as
answer choices
the substance expands
the substance's volume increases
the substance's mass increases
the average kinetic energy of its particles increases
the substance expands
alternatives
the substance's volume increases
the substance's mass increases
the average kinetic energy of its particles increases
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Question 13
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Particles are always moving
answer choices
true
false
true
alternatives
false
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Question 14
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If particles of two substances have the same average kinetic energy, then
answer choices
the specific heats of the substances are identical
the particles will not react chemically
the substances have equal thermal energies
the substances have equal temperatures
the specific heats of the substances are identical
alternatives
the particles will not react chemically
the substances have equal thermal energies
the substances have equal temperatures
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Question 15
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________ is a measure of the average kinetic energy of the particles in a material
answer
temperature
Temp
temperature
alternatives
Temp
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Question 16
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The energy transferred between object's at different temperatures
answer choices
heat
radiation
conduction
convection
heat
alternatives
radiation
conduction
convection
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Question 17
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How does the speed of the particles in a substance relate to the temperature of the substance?
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Question 18
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How does kinetic energy relate to the spread of COVID-19?
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