Social Sciences, asked by mrknowitall, 1 year ago

QUESTION 1

When a driver touches a car’s steering wheel on a hot day, heat is transferred to the driver’s hands by __________.

radiation

conduction

electromagnetism

convection

QUESTION 2

What is the thermal energy of an object?

its total temperature

the total kinetic energy of its particles

the total kinetic and potential energies of its particles

the total potential energy of its particles

QUESTION 3

When is thermal equilibrium achieved between two objects?

when the particles in one object have more kinetic energy

when temperature is no longer transferred

when both objects have the same temperature

when one objects is hotter than the other

QUESTION 4

How can you tell if two objects are in thermal equilibrium?

The objects are touching each other.

The objects are the same size.

The objects have the same temperature.

The objects' temperatures are changing.

QUESTION 5

Which statement explains the kinetic theory of heat?

Heat is transferred as thermal energy by the interaction of moving particles.

Objects whose particles are at the same temperature are in thermal equilibrium.

An object's thermal energy is caused by the movement of the tiny particles that it is made of.

Objects are made of tiny particles, and their motion depends on the temperature.

QUESTION 6

What is true for two pieces of iron at the same temperature?

Heat flows from the object with higher potential energy to the object with lower potential energy.

The total kinetic energy of their particles is equal.

The average kinetic energy of their particles is the same.

Heat flows from the larger object to the smaller object.

QUESTION 7

Why do a car's tires need more air in the winter than they do in the summer?

The temperature is lower, so the tires expand.

The temperature is lower, so the air inside the tires contracts.

The temperature is lower, so the air inside the tires expands.

The temperature is lower, so the tires contract.

QUESTION 8

What happens when the temperature of an object increases?

The object's particles move closer together.

The object's particles move faster.

The number of the object's particles increases.

The object's particles stop moving.

QUESTION 9

How do you convert from Celsius to Fahrenheit temperatures?

Subtract 273 from the original number.

Add 273 to the original number.

You would multiply the number by 9/5 and then add 32.

You subtract 32 and then multiply that number by 5/9.

QUESTION 10

Which three temperature readings all mean the same thing?

273 Kelvin, 100 degrees Celsius, 212 degrees Fahrenheit

273 Kelvin, 0 degrees Celsius, 212 degrees Fahrenheit

373 Kelvin, 100 degrees Celsius, 212 degrees Fahrenheit

100 Kelvin, 0 degrees Celsius, 32 degrees Fahrenheit

QUESTION 11

Which statement accurately describes what happens when ice melts in terms of energy?

The ice absorbs energy which causes chemical bonds to break, changing ice to water.

The ice absorbs energy which causes the water molecules to have more kinetic and potential energy, changing their configuration from a solid to a liquid.

The ice releases energy which causes the water molecules to have less kinetic and potential energy, changing their configuration from solid to liquid.

The ice releases energy which causes chemical bonds to break, changing the ice to water.

QUESTION 12

Which statement accurately describes what happens when water turns to ice in terms of energy?

The water absorbs energy which causes chemical bonds to form, changing water into ice.

The water releases energy which causes chemical bonds to form, changing water into ice.

The water releases energy which causes the water molecules to have less kinetic and potential energy, changing their configuration from liquid to solid.

The water absorbs energy which causes the water molecules to have more kinetic and potential energy, changing their configuration from a liquid to a solid.

QUESTION 13

In the first law of thermodynamics, , what does stand for?

the heat added to the system

the internal energy of the system

the work done by the piston

the change in the internal energy of the system

QUESTION 14

In a heat engine, if 500 J of heat enters the system, and the piston does 300 J of work, what is the final internal (thermal) energy of the system if the initial energy is 1,500 J?

200 J

1,300 J

1,700 J

800 J

QUESTION 15

If the thermal energy of the system increases by 400 J, and 1,100 J of heat were added to the system, how much work did the system do?

1,500 J

700 J

400 J

1,100 J

Answers

Answered by Aditya5100

QUESTION 1

Radiation

QUESTION 2

The total kinetic energy of its particles

QUESTION 3

When both objects have the same temperature

QUESTION 4

The objects have the same temperature.

QUESTION 5

Heat is transferred as thermal energy by the interaction of moving particles.

QUESTION 6

The average kinetic energy of their particles is the same.

QUESTION 7

The temperature is lower, so the air inside the tires expands.

QUESTION 8

The object's particles move faster.

QUESTION 9

Add 273 to the original number.

QUESTION 10

273 Kelvin, 0 degrees Celsius, 212 degrees Fahrenheit

QUESTION 11

The ice absorbs energy which causes the water molecules to have more kinetic and potential energy, changing their configuration from a solid to a liquid.

QUESTION 12

The water releases energy which causes the water molecules to have less kinetic and potential energy, changing their configuration from liquid to solid.

QUESTION 13

The heat added to the system.

QUESTION 14

800 J

QUESTION 15

1,500 J

I hope this answer of mine helps you.

Cheers !!!!!

Plz mark my answer as Brainliest.

Answered by Yeshwanth1245

Answer: