Bell ringer Which has more heat: a cup of boiling hot water or
a swimming pool at air temperature? How do you know?
Slide 3
answer The cup of water has the higher temperature. The
swimming pool has more heat. Heat- (Thermal energy) total amount of
kinetic energy of all the particles in a material. Temperature - is
related to how fast the atoms and molecules within a substance are
moving.
Slide 4
Review Can humans really feel temperature?
https://www.youtube.com/watch?v=yXT012u s9ng
https://www.youtube.com/watch?v=yXT012u s9ng
Slide 5
Notes EQ- How are endothermic and exothermic reactions related
to kinetic and potential forms of energy? Language Objective:
Explain the difference between endothermic and exothermic
reactions.
Slide 6
Thermal energy Thermal energy is the internal (inside) energy
of an object due to the kinetic energy of its atoms and/or
molecules. Remember: The atoms and/or molecules of a hotter object
have greater kinetic energy than those of a colder one. Examples: A
cup of hot tea has thermal energy A grill gives off thermal energy
by burning propane
Slide 7
Important vocabulary Exothermic Reaction- Exo = meaning
outside, outer, external Thermal- of, relating to, or caused by
heat When the chemical process RELEASES heat, making the results
feel HOT to the touch Stored chemicalheat energy
Slide 8
Endothermic Reaction- Endo- meaning within Thermal- of,
relating to, or caused by heat When the chemical process USES heat
and stores it in chemical bonds, making the results feel COLD to
the touch Heat energy stored chemical
Slide 9
Endothermic and Exothermic Chemical Reactions
https://www.youtube.com/watch?v=L- G7pLufXAo
https://www.youtube.com/watch?v=L- G7pLufXAo
Slide 10
Other Types of Kinetic Energy Review: This is energy in motion.
Kinetic energy is the motion of : ANY OBJECT (visible or not) Waves
Electrons ( negatively charged particles in atoms) Atoms (the
smallest component of an element having the chemical properties of
the element ) Molecules (The smallest unit of a substance that has
all of the physical and chemical properties of the substance )
Slide 11
Radiant Energy Electromagnetic energy (a form of energy that is
reflected or emitted from objects in the form of electrical and
magnetic) waves that can travel through space that travels in
transverse waves. Can travel in a vacuum This energy includes:
X-rays Gamma rays Radio waves Visible light Eureka Radiation Waves
http://www.youtube.com/watch?v=cwSB_GhCrF0&list=PLTazu3
yYUXNBhF7hQKxlKlHGdR5NAPsHI
Slide 12
Motion Movement of objects or substances from one place to
another. Wind Ball dropping Any moving object
Slide 13
Exit pass With a partner review your notes Turn on your
computer 1.Define endothermic 2.Define exothermic 3.Define radiant
energy 4.Define thermal energy