How do particles of matter move?  Matter is made of particles called atoms.

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Presentation transcript:

How do particles of matter move?

 Matter is made of particles called atoms

How do particles of matter move?  Matter is made of particles called atoms  Molecule – a group of atoms

How do particles of matter move?  Matter is made of particles called atoms  Molecule – a group of atoms  Atoms and molecules move constantly

How do particles of matter move? What is Kinetic energy?  Matter is made of particles called atoms  Molecule – a group of atoms  Atoms and molecules move constantly

How do particles of matter move? What is Kinetic energy?  Matter is made of particles called atoms  Molecule – a group of atoms  Atoms and molecules move constantly  The constant motion of atoms is a form of energy

How do particles of matter move? What is Kinetic energy?  Matter is made of particles called atoms  Molecule – a group of atoms  Atoms and molecules move constantly  The constant motion of atoms is a form of energy  Kinetic energy – energy of motion

What is Kinetic energy?  Atoms and molecules move constantly  The constant motion of atoms is a form of energy  Kinetic energy – energy of motion  Faster atoms have more kinetic energy

What is heat?

 Form of energy caused by motion of atoms & molecules

What is heat? What is temperature?  Form of energy caused by motion of atoms & molecules

What is heat? What is temperature?  Form of energy caused by motion of atoms & molecules  The measure of the average speed of atoms

What is heat? What is temperature?  Form of energy caused by motion of atoms & molecules  The measure of the average speed of atoms atoms in hot objects move fast

What is heat? What is temperature?  Form of energy caused by motion of atoms & molecules  The measure of the average speed of atoms atoms in hot objects move fast atoms in cold objects move slowly

What is temperature?  The measure of the average speed of atoms atoms in hot objects move fast atoms in cold objects move slowly 98.6 ° F = normal body temp.

How is heat transferred?

 Heat can be transferred from one object to another

How is heat transferred?  Heat can be transferred from one object to another  Heat moves from warmer to cooler objects

Why is a light bulb hot?

 energy for a light bulb comes from electricity

Why is a light bulb hot?  energy for a light bulb comes from electricity  Only a small amount of the energy from a light bulb brightens a room

Why is a light bulb hot?  energy for a light bulb comes from electricity  Only a small amount of the energy from a light bulb brightens a room - 2% is actual light energy - 98% is heat energy

Why is a light bulb hot? Heat & cars  energy for a light bulb comes from electricity  Only a small amount of the energy from a light bulb brightens a room - 2% is actual light energy - 98% is heat energy

Why is a light bulb hot? Heat & cars  energy for a light bulb comes from electricity  Only a small amount of the energy from a light bulb brightens a room - 2% is actual light energy - 98% is heat energy  Source of energy is gasoline which is made from oil

Why is a light bulb hot? Heat & cars  energy for a light bulb comes from electricity  Only a small amount of the energy from a light bulb brightens a room - 2% is actual light energy - 98% is heat energy  Source of energy is gasoline which is made from oil - 20% of the gas is used to move the car - 80% is given off as heat

Heat & cars Heat & Fuels  Source of energy is gasoline which is made from oil - 20% of the gas is used to move the car - 80% is given off as heat

Heat & cars Heat & Fuels  Source of energy is gasoline which is made from oil - 20% of the gas is used to move the car - 80% is given off as heat  A power plant is a place where electricity is made

Heat & cars Heat & Fuels  Source of energy is gasoline which is made from oil - 20% of the gas is used to move the car - 80% is given off as heat  A power plant is a place where electricity is made  Energy for power plant comes from fossil fuels

Heat & Fuels - 20% of the gas is used to move the car - 80% is given off as heat  A power plant is a place where electricity is made  Energy for power plant comes from fossil fuels  Fossil fuels are oil, coal, natural gas

Heat & Fuels - 20% of the gas is used to move the car - 80% is given off as heat  A power plant is a place where electricity is made  Energy for power plant comes from fossil fuels  Fossil fuels are oil, coal, natural gas  Heat is lost at every step when fossil fuel is made into electrictiy