Understanding Heat and Energy Transformations in Physics

 
Heat Calculations (pg 25 w/s)
 
1.
  5000 J
2.
  21000 J
3.
  1840 J
4.
  0.21 cal/g◦C
5.
  10 ◦C
 
Energy Transformations in
Illustrations
 
Bouncing Ball
 
When dropping a ball it travels the following path
where is the
Kinetic energy is decreasing
Kinetic energy is increasing
Kinetic energy is the HIGHEST
Kinetic energy is the LOWEST
Potential energy is decreasing
Potential energy is increasing
Potential energy is the HIGHEST
Potential energy is the LOWEST
Both KE and PE present
Pendulum
 
A pendulum travels the following path where is the
Kinetic energy is decreasing
Kinetic energy is increasing
Kinetic energy is the HIGHEST
Kinetic energy is the LOWEST
Potential energy is decreasing
Potential energy is increasing
Potential energy is the HIGHEST
Potential energy is the LOWEST
Both KE and PE present
Reading Specific Heat Tables
 
Recall specific heat tells you how
much energy is needed to
increase the temperature of 1
gram by 1 degree.
What substance takes the most
energy to heat?
What substance take the least
energy to heat?
What two substances listed make
good conductors?
What two substances make good
insulators?
 
Temperature Conversation
 
    
 K = °C
 
+ 273
°F = (9/5x °C) +32  
  
  °C = 5/9(°F-32)
 
Convert 58 °C to K
 
Convert 58 °C to °F
 
Convert 358 K to °C
 
K = °C
 
+ 273
°F = (9/5x °C) +32  
   
 °C = 5/9(°F-32)
Kinetic Energy =1/2 (mass x velocity
2
)
  
KE = ½ m v
2
Potential Energy = mass x gravity x height
  
PE = m g h
g = 9.8 m/s
2
Heat = mass x specific heat x change in temp
  
Q = m c 
Δ
t
 
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Explore heat calculations, energy transformations, kinetic and potential energy concepts through illustrations of a bouncing ball and a pendulum. Learn to read specific heat tables and make temperature conversions. Dive into the world of thermal dynamics with practical examples and calculations in physics.


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  1. Heat Calculations (pg 25 w/s) 1. 2. 3. 4. 5. 5000 J 21000 J 1840 J 0.21 cal/g C 10 C

  2. Energy Transformations in Illustrations

  3. Bouncing Ball When dropping a ball it travels the following path where is the Kinetic energy is decreasing Kinetic energy is increasing Kinetic energy is the HIGHEST Kinetic energy is the LOWEST Potential energy is decreasing Potential energy is increasing Potential energy is the HIGHEST Potential energy is the LOWEST Both KE and PE present

  4. Pendulum A pendulum travels the following path where is the Kinetic energy is decreasing Kinetic energy is increasing Kinetic energy is the HIGHEST Kinetic energy is the LOWEST Potential energy is decreasing Potential energy is increasing Potential energy is the HIGHEST Potential energy is the LOWEST Both KE and PE present

  5. Reading Specific Heat Tables Recall specific heat tells you how much energy is needed to increase the temperature of 1 gram by 1 degree. What substance takes the most energy to heat? What substance take the least energy to heat? What two substances listed make good conductors? What two substances make good insulators?

  6. Temperature Conversation K = C+ 273 F = (9/5x C) +32 C = 5/9( F-32) Convert 58 C to K Convert 58 C to F Convert 358 K to C

  7. K = C+ 273 F = (9/5x C) +32 Kinetic Energy =1/2 (mass x velocity2) KE = m v2 Potential Energy = mass x gravity x height PE = m g h g = 9.8 m/s2 Heat = mass x specific heat x change in temp Q = m c t C = 5/9( F-32)

  8. Ch 15 22) PE=4312 J 23) KE=10J 24) V=9 m/s 25)KE=100 J 26)KE= 1960 J 27)KE= 2240 J 28) PE = 2058 J 29) PE = 3528 J Ch 16 43)Tf=58.86 C 44) c = 383.88 j/kgK 51) Q=47145 J 53)C = 272.5 J/kgK 54) Q=140.22 kJ

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