review for: unit 7 chapter 4 – energy chapter 6 – thermal energy

Review for: Unit 7 Review for: Unit 7 Chapter 4 – Energy Chapter 4 – Energy Chapter 6 – Thermal Chapter 6 – Thermal EnergyEnergy

#1 The type of energy #1 The type of energy which describes the which describes the motion of an object is motion of an object is ______ energy.______ energy.A.A. PotentialPotential

B.B. Kinetic Kinetic

C.C. Thermal Thermal

D.D. ChemicalChemical

#2 An object can increase #2 An object can increase its kinetic energy by its kinetic energy by increasing its ______. increasing its ______.

A.A. Speed Speed

B.B. Size Size

C.C. Height Height

D.D. Specific heat Specific heat

#3 The type of energy #3 The type of energy that is associated with an that is associated with an object’s position is called object’s position is called ___ energy.___ energy.A.A. Potential Potential



D.D. Chemical Chemical

#4 A rock sitting on a desk #4 A rock sitting on a desk has ______ energy. has ______ energy.

A.A. Potential Potential




#5 Any type of energy #5 Any type of energy that is stored is that is stored is considered ______ energy. considered ______ energy.

A.A. Potential Potential




#6 What is the correct #6 What is the correct unit for energy? unit for energy?

A.A. WattsWatts

B.B. NewtonsNewtons

C.C. Joules Joules

D.D. kilograms kilograms

#7 The type of energy in #7 The type of energy in an object that can stretch an object that can stretch or compress is ____ energyor compress is ____ energy

A.A. Gravitational potential Gravitational potential

B.B. Chemical potential Chemical potential

C.C. Elastic potential Elastic potential

D.D. Kinetic Kinetic

#8 A book and a feather #8 A book and a feather sitting next to each other sitting next to each other on a shelf have _____ on a shelf have _____ potential energies. potential energies.

A.A. the same the same

B.B. Different Different

#9 According to the Law #9 According to the Law of Conservation of Energy, of Conservation of Energy, energy ______________. energy ______________.

A.A. can be created or destroyed.can be created or destroyed.

B.B. can change forms but cannot be can change forms but cannot be created or destroyed. created or destroyed.

C.C. in the universe is constant. in the universe is constant.

D.D. Answers B and C are correct. Answers B and C are correct.

#10 _____ energy is the #10 _____ energy is the total kinetic and potential total kinetic and potential energies in a system. energies in a system.

A.A. Thermal Thermal

B.B. Mechanical Mechanical

C.C. Chemical Chemical

D.D. Chuck NorrisChuck Norris

#11 A clothes iron #11 A clothes iron changes electrical energy changes electrical energy into thermal energy. into thermal energy.

A.A. TrueTrue

B.B. FalseFalse

#12 When a baseball is #12 When a baseball is thrown from the outfield thrown from the outfield to home plate, its kinetic to home plate, its kinetic energy is least ______. energy is least ______.

A.A. At the peak of its flightAt the peak of its flight

B.B. When it leaves the player’s handWhen it leaves the player’s hand

C.C. When it lands in the catcher’s mitWhen it lands in the catcher’s mit

D.D. Right after it leaves the player’s handRight after it leaves the player’s hand

#13 When a baseball is #13 When a baseball is thrown from the outfield thrown from the outfield to home plate, its to home plate, its potential energy is potential energy is greatest ______. greatest ______. A.A. At the peak of its flightAt the peak of its flight

B.B. When it leaves the player’s handWhen it leaves the player’s hand

C.C. When it lands in the catcher’s mitWhen it lands in the catcher’s mit

D.D. Right after it leaves the player’s handRight after it leaves the player’s hand

#14 If an object has #14 If an object has energy then that object energy then that object has the ability to _______. has the ability to _______.

A.A. Make sandwichesMake sandwiches

B.B. Beat Chuck NorrisBeat Chuck Norris

C.C. Cause a changeCause a change

D.D. Get an “A” in Mr. Schlueter’s classGet an “A” in Mr. Schlueter’s class

#15 The potential energy of a #15 The potential energy of a swing is 200 J at its highest point swing is 200 J at its highest point and 50 J at its lowest point. If and 50 J at its lowest point. If mechanical energy is conserved, mechanical energy is conserved, what is the kinetic energy of the what is the kinetic energy of the swing at its lowest point? swing at its lowest point?

A.A. 250 J250 J

B.B. 200 J200 J

C.C. 100 J100 J

D.D. 150 J150 J

E.E. 50 J50 J

#16 What is the potential #16 What is the potential energy of a truck with a energy of a truck with a mass of 3,000 kg at the mass of 3,000 kg at the top of a 75 m hill?top of a 75 m hill?

A.A. 3,075 J3,075 J

B.B. 225 kJ225 kJ

C.C. 2.21 MJ2.21 MJ

D.D. 2.25 MJ2.25 MJ

#17 What is the kinetic #17 What is the kinetic energy of a truck with a energy of a truck with a mass of 3,000 kg moving mass of 3,000 kg moving at 50 m/s?at 50 m/s?

A.A. 3,050 J3,050 J

B.B. 75 kJ75 kJ

C.C. 150 kJ150 kJ

D.D. 3.75 MJ3.75 MJ

#18 _____ is the average #18 _____ is the average kinetic energy of the kinetic energy of the particles of a material. particles of a material.

A.A. Total kinetic energy Total kinetic energy

B.B. TemperatureTemperature

C.C. Thermal energy Thermal energy

D.D. Heat Heat

#19 The sum of the kinetic #19 The sum of the kinetic and potential energies of and potential energies of all the particles of a all the particles of a material is the _______. material is the _______.

A.A. Mechanical EnergyMechanical Energy



D.D. Heat Heat

#20 ____ is thermal energy #20 ____ is thermal energy that flows from an object that flows from an object at a higher temperature to at a higher temperature to an object at a lower an object at a lower temperature.temperature.

A.A. Specific HeatSpecific Heat



D.D. Heat Heat

#21 The amount of heat #21 The amount of heat required to raise the required to raise the temperature of 1kg of a temperature of 1kg of a material by 1material by 1°°C is called C is called ____. ____.




D.D. Heat Heat

#22 In the equation #22 In the equation Q=mC(TQ=mC(Tff-T-Tii) the letter “Q” ) the letter “Q” represents _____. represents _____.


B.B. Mass Mass


D.D. Temperature final Temperature final

E.E. Temperature initial Temperature initial

#23 In the equation #23 In the equation Q=mC(TQ=mC(Tff-T-Tii) the letter “C” ) the letter “C” represents _____. represents _____.


B.B. Mass Mass


D.D. Temperature final Temperature final

E.E. Temperature initial Temperature initial

#24 _____ is the transfer of #24 _____ is the transfer of thermal energy by thermal energy by collisions between collisions between particles in matter. particles in matter.

A.A. ConductionConduction

B.B. Convection Convection

C.C. Radiation Radiation

D.D. HeatHeat

#25 _____ is the transfer of #25 _____ is the transfer of thermal energy in a fluid thermal energy in a fluid by the movement of by the movement of warmer and cooler fluid. warmer and cooler fluid.




D.D. HeatHeat

#26 ____ is the transfer of #26 ____ is the transfer of thermal energy by thermal energy by electromagnetic waves. electromagnetic waves.




D.D. HeatHeat

#27 _____ and _____ require #27 _____ and _____ require matter in order to transfer matter in order to transfer thermal energy. thermal energy.

A.A. Conduction and radiation Conduction and radiation

B.B. Convection and radiationConvection and radiation

C.C. Conduction and ConvectionConduction and Convection

#28 A material in which #28 A material in which heat flows slowly is a(n) heat flows slowly is a(n) ______. ______.

A.A. Conductor Conductor

B.B. Insulator Insulator

C.C. Convector Convector

D.D. Radiator Radiator

#29 Why are gases usually #29 Why are gases usually better insulators than better insulators than solids and liquids? solids and liquids?

A.A. The particles in gases are closer together The particles in gases are closer together which doesn’t allow heat to travel through which doesn’t allow heat to travel through very easily. very easily.

B.B. The particles in gases are farther apart, The particles in gases are farther apart, not allowing the energy to be transferred not allowing the energy to be transferred by the collisions between the particles. by the collisions between the particles.

C.C. Gases are not better insulators than solids Gases are not better insulators than solids and liquids. and liquids.

D.D. Because that’s what Chuck Norris Because that’s what Chuck Norris decided. decided.

#30 Of these materials #30 Of these materials which is the best insulator?which is the best insulator?

A.A. Air Air

B.B. Copper Copper

C.C. Iron Iron

D.D. Aluminum Aluminum

#31 Gasoline and diesel #31 Gasoline and diesel engines are _____. engines are _____.

A.A. Heat pumps Heat pumps

B.B. External combustion enginesExternal combustion engines

C.C. Internal combustion engines Internal combustion engines

D.D. Heat moversHeat movers

#32 #32 A device that heats your home by removing thermal energy from one location and transferring it to another location at a different temperature is a(n) ____.A.A. Heat moverHeat mover

B.B. RadiatorRadiator

C.C. ConductorConductor

D.D. Heat engineHeat engine

#33 Solar collectors are #33 Solar collectors are parts of ________. parts of ________.

A.A. Passive solar heating systemsPassive solar heating systems

B.B. Active solar heating systems Active solar heating systems

C.C. Internal combustion enginesInternal combustion engines

D.D. External combustion enginesExternal combustion engines

#34 The process by which #34 The process by which engine fuels burn is ____. engine fuels burn is ____.

A.A. Radiation Radiation


C.C. Combustion Combustion

D.D. Insulation Insulation

#35 How #35 How much energy is much energy is absorbed by a 1kg absorbed by a 1kg wooden chair that is wooden chair that is heated from from 25°C heated from from 25°C to 40°C?to 40°C?A.A. 2,640 J2,640 J

B.B. 26,400 J26,400 J

C.C. 62,760 J62,760 J

QUESTIONS!???!??!!QUESTIONS!???!??!!

Are there any problems you want Are there any problems you want me to work through?me to work through?

Any questions you want to ask?Any questions you want to ask?

The test covers The test covers CHAPTERS 4 & CHAPTERS 4 & 6! Study!Study!

review for: unit 7 chapter 4 – energy chapter 6 – thermal energy

Documents

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potential energies

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players handwhen