What is the definition of CONDUCTION?

When heat transfers from objects that are touching.

When heat is transferred from objects like rays of light or electromagnetically.

a hot liquid or air that expands, becomes less dense, and rises or becomes more dense, and sinks.

When heat transfers through the heater or AC in your house.

What is thermal equilibrium?

When two or more objects reach a common temperature.

When two objects are at rest at the same time.

When two objects have the same specific heat.

A piece of metal will feel colder than a piece of wood at the same temperature. Why?

Metals, in general, are good heat conductors.

Metal atoms are moving more slowly, on the average, than wood atoms.

Wood, in general, is a poor insulator.

You are feeling sick, so you place a thermometer under your tongue to check your temperature. The directions on the box tell you to leave the thermometer there for three minutes before you read your temperature. Why should you wait?

It takes some time for the thermometer and your body to reach thermal equilibrium.

It takes some time for the thermometer to reach its activation energy.

It takes some time for the thermometer to raise your body’s internal energy.

It takes some time for the thermometer and your body to attain a state of contact.

the transfer of thermal energy from one object to another due to temperature difference

the temperature of a solid, liquid, or gas

The kinetic energy of a solid, liquid, or gas.

The picture below shows a closed system before and after undergoing a change. What was changed in the system?

Particles were added to the system.

As water in a freezer turns into ice,

the freezer air absorbs heat from the water.

the water absorbs energy from the air in the freezer.

the water absorbs the coldness from the air in the freezer.

the water neither absorbs nor releases energy

An aluminum plate and a plastic plate have been in the freezer all night long. When you remove them the next morning,

The plates are the same temperature.

The plastic plate has a higher temperature.

The plastic plate has a lower temperature.

The aluminum plate has a lower temperature.

Energy Transfer and Temperature

Authored by Charles Martinez

Physics

6th Grade - University

NGSS covered

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40 questions

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MULTIPLE CHOICE QUESTION

45 sec • 1 pt

True or false: Heat moves from the cooler object to a warmer object

True

False

Tags

NGSS.MS-PS1-4

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

If two objects have different temperatures, heat will flow from the warmer object to the cooler one UNTIL ____________

one reaches a temperature of zero

they both have an equal temperature

one runs out of energy

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Heat is transferred by conduction, ____________, and radiation.

convection

waves

thermal energy

radiant energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-3

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The transfer of energy by electromagnetic waves is called

conduction

convection

radiation

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

A material that conducts heat well is called a(n)

conductor

insulator

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-3

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

A material that does not conduct heat well is called a(n)

conductor

insulator

Tags

NGSS.MS-PS3-3

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which of the following is the sun's rays reaching the earth?

radiation

convection

conduction

insulator

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Energy Transfer and Temperature

True or false: Heat moves from the cooler object to a warmer object

If two objects have different temperatures, heat will flow from the warmer object to the cooler one UNTIL ____________

Heat is transferred by conduction, ____________, and radiation.

The transfer of energy by electromagnetic waves is called

A material that conducts heat well is called a(n)

A material that does not conduct heat well is called a(n)

Which of the following is the sun's rays reaching the earth?

Conduction transfers heat by atoms colliding and transferring energy.

Convection currents can happen in solids, liquids and gases.

Heat transfer continues until both objects are at equal temperatures.

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