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Temperature & Heat

Description

Biology Science (HS Physical Science) Quiz on Temperature & Heat, created by Selam H on 21/11/2013.
Selam H
Quiz by Selam H, updated more than 1 year ago
Selam H
Created by Selam H about 11 years ago
549
3
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Resource summary

Question 1

Question
What direction does heat flow spontaneously (happening apparently)?
Answer
  • cold → hot
  • hot → cold

Question 2

Question
What is temperature compared to thermal energy (difference)?
Answer
  • Temperature: overall or random amount of energy/heat (°F, °C, °K) , Thermal Energy: directly measured (Joules)
  • Temperature: directly measured (°F, °C, °K) , Thermal Energy: overall or random amount of energy/heat (Joules)
  • Temperature: directly measured (Joules) , Thermal Energy: overall or random amount of energy/heat (°F, °C, °K)
  • Temperature: overall or random amount of energy/heat (Joules) , Thermal Energy: directly measured (°F, °C, °K)

Question 3

Question
Is work 100% efficient?
Answer
  • Yes; it is ALWAYS lost
  • Yes; it is NEVER lost
  • No; friction gets ALL of the energy lost
  • No; friction gets SOME of the energy lost

Question 4

Question
What is conduction?
Answer
  • Energy transferred by 2 things TOUCHING
  • Energy transferred through the movement of liquid or through CURRENTS
  • Energy transferred from an energy source and DOESN'T have to travel through MATTER

Question 5

Question
What is radiation?
Answer
  • Energy transferred by 2 things TOUCHING
  • Energy transferred through the movement of liquid or through CURRENTS
  • Energy transferred from an energy source and DOESN'T have to travel through MATTER

Question 6

Question
What is convection?
Answer
  • Energy transferred from an energy source and DOESN'T have to travel through MATTER
  • Energy transferred through the movement of liquid or through CURRENTS
  • Energy transferred by 2 things TOUCHING

Question 7

Question
What is thermodynamics?
Answer
  • The study of heat and thermal energy
  • The study of conversions between heat and other forms of energy
  • The study of particle movement

Question 8

Question
What is the 1st law of thermodynamics?
Answer
  • We can never reach absolute zero
  • Energy con never be created or destroyed and therefore must be conserved
  • Energy flows from hot → cold (to go from cold → hot, you must do work)

Question 9

Question
What is the 2nd law of thermodynamics?
Answer
  • Energy flows from hot → cold (to go from cold → hot, you must do work)
  • Energy con never be created or destroyed and therefore must be conserved
  • We can never reach absolute zero

Question 10

Question
What is the 3rd law of thermodynamics?
Answer
  • Energy flows from hot → cold (to go from cold → hot, you must do work)
  • We can never reach absolute zero
  • Energy con never be created or destroyed and therefore must be conserved

Question 11

Question
What does thermal energy depend on? (more than one answer)
Answer
  • temperature
  • volume
  • density
  • phase
  • mass

Question 12

Question
Most substances _____ when they freeze and _____ when heated. However, water _____ when it freezes _____ when it is heated.
Answer
  • contrast; expand; expand; contrast
  • contrast; expand; contrast; expand
  • contrast; contrast; expand; expand
  • expand; expand; contrast; contrast

Question 13

Question
What is specific heat?
Answer
  • When 2 different objects reaching the same temperature
  • Amount of heat needed to raise 1 gm of material 1°C
  • Amount of energy an object can sustain
  • Change in temperature

Question 14

Question
What is water's specific heat?
Answer
  • 3.98 J/g°C ≈ 4 J/g°C
  • 4 J/g°C (exactly)
  • 2.98 J/g°C ≈ 3 J/g°C
  • 1.98 J/g°C ≈ 2 J/g°C

Question 15

Question
Is water's specific heat high or low compared to other materials?
Answer
  • high; temperature raises less when energy is added
  • low; temperature raises less when energy is added
  • high; temperature raises more when energy is added
  • low; temperature raises more when energy is added

Question 16

Question
What is thermal equilibrium?
Answer
  • When 2 different objects reaching the same temperature
  • Amount of heat needed to raise 1 gm of material 1°C
  • Change in temperature
  • Amount of energy an object can sustain

Question 17

Question
What do engines or motors do?
Answer
  • They are machines designed to make electricity by making a turbine turn
  • They are machines designed to make electricity by burning fuel
  • They are machines designed to convert mechanical energy into other forms of energy
  • They are machines designed to convert energy into mechanical energy

Question 18

Question
What is internal combustion?
Answer
  • Fuel sprayed into a cylinder which is then ignited and drives the piston (happening all together and inside motor)
  • Fuel that is ignited outside of the motor along with combustion
  • Burning happening inside a engine

Question 19

Question
What is external combustion?
Answer
  • Fuel that is ignited outside of the motor along with combustion
  • Burning happening outside an engine
  • Fuel sprayed into a cylinder which is then ignited and drives the piston (happening all together and inside motor)
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