7.8b

What occurs when thermal equilibrium is reached within a system?

• The system cools down rapidly.

• Heat transfer stops completely.

• All substances within the system have the same temperature.

• Thermal energy flows in the opposite direction.

Which of the following best describes how thermal energy moves in a predictable pattern within a closed system until thermal equilibrium is reached?

• It always moves from cooler to warmer areas.

• It moves randomly within the system.

• It moves from warmer to cooler areas until equilibrium.

• It remains stagnant and doesn't move.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

If you heat one end of a metal rod, how does the thermal energy move through the rod to reach thermal equilibrium?

• Through radiation only.

• Through convection only.

• Through conduction only.

• Through a combination of conduction and convection.

Tags

NGSS.MS-PS3-4

When you place an ice cube in a glass of warm water, how does the thermal energy transfer occur to reach thermal equilibrium?

• Through conduction only.

• Through convection only.

• Through radiation only.

• Through a combination of conduction and convection.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

List the steps of the scientific method

d

e

f

c

b

a

Analyze results

Communicate results

Ask a question

Conduct experiment

Form a hypothesis

Draw conclusions

In a house, what is the purpose of insulation in terms of thermal energy transfer?

• To promote rapid heat loss.

• To enhance radiation.

• To minimize heat transfer.

• To encourage conduction.

Tags

NGSS.MS-PS3-3

What term describes the transfer of thermal energy from warmer objects to cooler objects when they come into contact?

• Conduction

• Radiation

• Convection

• Insulation

Tags

NGSS.MS-PS3-3

If you place a hot cup of coffee on a cold kitchen counter, which process allows the coffee to cool down as it transfers heat to the counter?

• Conduction

• Radiation

• Convection

• Insulation

Radiators are heading devices that are commonly found in older homes. When water in the radiator is heated, the surrounding air is also heated. In a closed room with a hot radiator, how does the thermal energy move to reach equilibrium within the room?

• Through conduction

• Through radiation

• Through convection

• Through insulation

Tags

NGSS.MS-PS1-4

In a well-insulated house on a hot summer day, what happens to the thermal energy inside the house?

• It escapes to the outside.

• It stays in the same place without moving.

• It moves from cooler rooms to warmer rooms.

• It moves from warmer rooms to cooler rooms until equilibrium is reached.

Tags

NGSS.MS-PS1-4