question

Solids have a greater strength of attraction between its molecules than liquids.

answer

True

question

Water beads up on wax paper because its cohesive forces are greater than the adhesive forces.

answer

True

question

Temperature is a measure of the amount of heat stored in a substance.

answer

False

question

the molecules of a gas are much further apart than molecules in a solid or liquid.

answer

True

question

A liquid at 20 C is twice as hot as the liquid at 10 C.

answer

False

question

The degrees on the Celsius scale are larger than degrees on the Fahrenheit scale.

answer

True

question

The nutritionist's Calorie is really a kilocalorie.

answer

True

question

The sum of all the energy of the molecules of an object is called the temperature of that object.

answer

False

question

iron heats up more rapidly than does aluminum because it has a greater specific heat.

answer

False

question

Liquid water at 0 C has to give up energy in order to become ice at 0 C.

answer

True

question

A 10 degree temperature change on the Fahrenheit scale would be equivalent to what size change on the Celsius scale? A. 18 degrees B. 10 degrees C. 5.6 degrees D. 1.8 degrees

answer

D. 1.8 degrees

question

The attractive forces between unlike molecules is called A. cohesion B. adhesion C. diffusion D. friction

answer

B. adhesion

question

The Celsius core body temperature of an average, healthy human is nearest to A. 100 degrees B. 68 degrees C. 37 degrees D. 20 degrees

answer

C. 37 degrees

question

Molecules in a solid A. are harder than molecules in liquids of gases B. transfer heat to their neighbors by a process called convection C. have no internal energy because they are not moving around D. are held in nearly fixed positions by strong attractive forces

answer

D. are held in nearly fixed positions by strong attractive forces

question

The process by which solids vaporize without first becoming a liquid is called A. sublimation B. condensation C. evaporation D. boiling

answer

A. sublimation

question

When water vapor condenses to a liquid A. it absorbs energy from the surroundings B. its temperature drops sharply C. it releases heat to the surroundings D. its temperature rises slightly

answer

C. it releases heat to the surroundings

question

In the equation: Q=mcΔt, the c stands for the A. heat of vaporization B. number of calories gained or lost C. convection coefficient D. specific heat

answer

D. specific heat

question

A gas that is usually found in the liquid phase is called a A. vapor B. plasma C. fluid D. wet gas

answer

A. vapor

question

The energy required to warm one gram of water by one Celsius degree is called a A. joule B. calorie C. BTU D. kilocalorie

answer

B. calorie

question

The water in a swimming pool is cooler than the surrounding sidewalk because A. it has a higher specific heat B. it has weaker attractive forces C. it loses heat more rapidly D. it has a lower density

answer

A. it has higher specific heat

question

Water molecules move back and forth between and gaseous phases A. only when the air is not saturated B. only at 100 C C. only when the relative humidity is 100% D. at all times

answer

D. at all times

question

The transfer of heat that occurs when energy moves from molecules to molecule is called A. convection B. conduction C. radiation D. phase change

answer

B. convection

question

The specific heat of copper is roughly three times as great as the specific heat of gold. Which of the following is true? A. if the same amount of heat is applied to equal masses of gold and copper, the copper will get hotter B. copper heats up three times as fast as gold C. a piece of copper stores three times as much heat as the same mass of gold at the same temperature D. the melting temperature of copper is roughly three times that of gold

answer

C. a piece of copper stores three times as much heat as the same mass of gold at the same temperature

question

Which of the following can only be measured during the process of being gained or lost? A. mass B. temperature C. heat D. volume

answer

C. heat

question

Which temperature scale does not have arbitrarily assigned reference points? A. fahrenheit B. celsius C. kelvin D. none of the above

answer

C. kelvin

question

Evaporation occurs more rapidly at a higher temperature because A. there is less resistance to evaporation B. higher temperature means higher kinetic energy C. air is less dense at higher temperatures D. there is less condensation

answer

B. higher temperature means higher kinetic energy

question

No water vapor is added to or removed from a sample of air that is warming, so the relative humidity of this sample of air will A. remain the same B. be lower C. be higher D. be higher or lower, depending on the initial temperature

answer

B. be lower

question

The Fahrenheit temperature scale A. was originally a centigrade scale B. has 180 divisions between two reference points C. has an arbitrarily assigned number line D. all of the above

answer

D. all of the above

question

The evaporation of water cools the surroundings and the condensation of this vapor A. does nothing B. warms the surroundings C. increased the value of the latent heat of vaporization D. decreases the value of the latent heat of vaporization

answer

B. warms the surroundings

question

The heat involved in the change of phase from solid ice to liquid water is called A. latent heat of vaporization B. latent heat of fusion C. latent heat of condensation D. none of the above

answer

B. latent heat of fusion

question

The energy supplied to a system in the form of heat, minus the work done by the system, is equal to the change in internal energy. This statement describes the A. first law of thermodynamics B. second law of thermodynamics C. third law of thermodynamics

answer

A. first law of thermodynamics

question

If you want to move heat from a region of cooler temperature to a region of warmer temperature, you must supply energy. This described by the A. first law of thermodynamics B. second law of thermodynamics

answer

B. second law of thermodynamics

question

More molecules are returning to the liquid state than are leaving the liquid state. This process is called A. boiling B. freezing C. condensation D. melting

answer

C. condensation

question

A heat engine is designed to A. move heat from a cool source to a warmer location B. move heat from a warm source to a cooler location C. convert mechanical energy into heat D. convert heat into mechanical energy

answer

D. convert heat into mechanical energy

question

The work that a heat engine is able to accomplish is ideally equivalent to the A. difference between the heat supplied and the heat rejected B. heat that was produced in the cycle C. heat that appears in the exhaust gases D. sum total of the heat input and the heat output

answer

A. different between the heat supplied to the heat rejected

question

Conduction best takes place in a A. solid B. fluid C. gas D. vacuum

answer

A. solid

question

Convection best takes place in a A. solid B. fluid C. alloy D. vacuum

answer

B. fluid

question

Radiation is the only method of heat transfer that can take place in a A. solid B. liquid C. gas D. vacuum

answer

D. vacuum

question

What form of heat transfer will warm your body without warming the air in a room? A. conduction B. convection C. radiation D. none of the above

answer

C. radiation

question

When you add heat to a substance, its temperature A. always increases B. sometimes decreases C. might stay the same D. might go up or down, depending on the temperature

answer

C. might stay the same

Life Science Chapter 4 Heat and Temperature

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