Temperature, Heat and Specific Heat

Using the picture. What was the change in the system?

• air was added to the system

• heat was added to the system

• water was added to the system

• particles were added to the system

Tags

NGSS.MS-PS1-4

Lisa has a bottle of water. How can she increase the thermal energy of the water?

• She can pour the water into a larger bottle.

• She can increase the temperature of the water.

• She can place the bottle of water in the refrigerator.

• She can divide the water between tow identical containers.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

How does the thermal energy of the liquid in the larger beaker compare to the thermal energy of the liquid in the smaller beaker?

• The liquid in the larger beaker has less thermal energy than the liquid in the smaller beaker.

• The liquid in the larger beaker has more thermal energy than the liquid in the smaller beaker.

• The liquid in the larger beaker has the same amount of thermal energy as the liquid in the smaller beaker.

• The exact volume of the liquid in each beaker must be known to compare the thermal energy of the liquids.

Tags

NGSS.MS-PS1-4

Which description defines heat?

• total thermal energy of an object or substance

• change in the temperature of a substance in degrees Celsius

• energy transferred between objects at different temperatures

• average kinetic energy of the particles that make up a substance

Tags

NGSS.MS-PS3-3

As energy in the form of heat is added to an ice cube, it begins to melt. What causes melting.

• Heat causes the molecules to expanded and forces them apart.

• Heat removes thermal energy from the ice cube and causes it to become liquid water.

• Adding energy causes the bonds between the hydrogen and oxygen in the ice cube to break.

• The transfer of thermal energy to the ice cube causes its molecules to move faster.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Ashton warms a pure, solid substance. He graphs the changes in temperature as shown in the figure below. What is happening as he warms the substance?

• molecules move more slowly

• molecules move more rapidly

• speed of the molecules in not changing

• molecules speed up than slow down

Tags

NGSS.MS-PS1-4

Which example illustrate the transfer of energy through RADIATION?

• feeling warmth when you sit in a sunny place.

• feeling warm air while standing in front of the blower from a heating system.

• feeling the warmth of the bricks around a fireplace by touching them with your hand.

• feeling warmth on the soles of your feet when you walk along the beach on a sunny day.

Mrs. Plata likes to collect river rocks on her daily walk. She picked up a rock and placed it in her pocket. If the rock is 10 degrees Celsius and Mrs. Plata is 31 degrees Celsius, which of the following BEST describes the transfer of energy?

• Thermal energy will flow from Mrs. Plata to the rock.

• Thermal energy will flow from the rock to Mrs. Plata.

• Thermal energy will flow from Mrs. Plata into the air.

• Thermal energy will flow into the air and to the rock.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

When cold water is added slowly to warm water they will slowly blend over time evenly through the entire liquid. Which BEST explains the reason the heat moves throught the liquid?

• The densities of the liquids are similar.

• Cold liquids rise and hot liquids sink causing mixing.

• Molecules creates chemical bonds the help spread energy.

• Heat always moves from higer temperatures to lower temperatures.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

How does removing heat change the particles in a closed system?

• Particles move apart

• Particles slow down and break apart

• Particles move faster and potentially change phases

• Particles move slower and potentially change phases

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4