Lesson
Kinetic Energy and Temperature
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• Slide 1
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Kinetic Energy and Temperature

Text
• Slide 2
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Kinetic Energy

• energy possessed by an object in motion

• Slide 3
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Heat

• thermal energy transferred between two objects

• heat flows from hotter object to colder object

• Question 4
30 seconds
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Q.

The energy associated with motion is called

kinetic energy

elastic potential energy

gravitational potential energy

nuclear energy

• Question 5
30 seconds
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Q.

Thermal energy is

the energy of motion

energy of nuclear processes

an indication of a physical change

heat energy

• Question 6
30 seconds
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Q.

Hot objects begin to cool as

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

• 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

• 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

• Question 9
30 seconds
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Q.

At higher temperature

particles in an object have less kinetic energy

particles in an object move faster

a gas contracts

particles in ab object move slower

• Question 10
30 seconds
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Q.

Which of the following is TRUE when particles GAIN thermal energy?

particles move more slowly

particles stop moving

particles move further apart

particles move closer together

• Question 11
30 seconds
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Q.

What happens to particle movement/speed when energy is removed?

particles slow down

particles go faster

particles don't move

particles stay the same speed

• Question 12
30 seconds
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Q.

The temperature of a substance increases as

the substance expands

the substance's volume increases

the substance's mass increases

the average kinetic energy of its particles increases

• Question 13
30 seconds
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Q.

Particles are always moving

true

false

• Question 14
30 seconds
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Q.

If particles of two substances have the same average kinetic energy, then

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

• Question 15
60 seconds
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Q.

________ is a measure of the average kinetic energy of the particles in a material

temperature
alternatives
Temp
• Question 16
30 seconds
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Q.

The energy transferred between object's at different temperatures

heat

conduction

convection

• Question 17
180 seconds
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Q.

How does the speed of the particles in a substance relate to the temperature of the substance?

• Question 18