Unit 3 Review

Which form of energy transfer is most responsible for the creation of Earth’s air and ocean currents?

• conduction

• convection

• radiation

• insulation

Tags

NGSS.MS-ESS2-6

A student makes a chart with two images showing how heat is transferred during the winter. What kinds of heat transfer do these images demonstrate?

• Image 1: convection; Image 2: radiation

• Image 1: convection; Image 2: conduction

• Image 1: conduction; Image 2: radiation

• Image 1: conduction; Image 2: convection

Tags

NGSS.MS-PS3-3

A metal spoon is used to stir hot chocolate in a ceramic mug. Which statement describes the direction of heat transfer that occurs?

• from the spoon to the mug

• from the mug to the spoon

• from the spoon to the hot chocolate

• from the hot chocolate to the spoon

Tags

NGSS.MS-PS3-5

Differences in the temperature between the North and South poles and the equator create thermal currents in the atmosphere that form global winds.

What type of currents cause the global winds?

• conduction

• convection

• radiation

• solar

Tags

NGSS.MS-ESS2-6

A teacher prepares a demonstration to show the transfer of heat using the setup shown in the diagram.

Which statement correctly describes how heat moves in the demonstration?

• Heat moves from the lamp to the water by conduction, travels through the water by convection, and warms the boat by conduction.

• Heat moves from the lamp to the water by conduction, travels through the water by radiation, and warms the boat by convection.

• Heat moves from the lamp to the water by radiation, travels through the water by radiation and convection, and warms the boat by convection.

• Heat moves from the lamp to the water by radiation, travels through the water by conduction and convection, and warms the boat by conduction.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Bailey gently places a few red food coloring crystals at the bottom of a glass beaker filled with water. She heats the beaker with a burner for a few minutes.

She observes that the red color rises up. What causes the color to spread?

• emissions caused by the heat

• convection currents in the water

• radiation caused by the flame

• conduction in the glass beaker

Tags

NGSS.MS-PS1-4

A student drops a solid piece of foam in boiling water. The piece of foam rises to the top of the container, gets pushed to the side, sinks to the bottom, and then rises again repeatedly.

What causes the foam to move in a circular motion?

• conduction

• convection

• evaporation

• radiation

The thermometers show the variation in temperatures of a rod at different points.

What process of heat transfer causes this variation?

• conduction

• convection

• emission

• radiation

Tags

NGSS.MS-PS1-4

A student places a metal spoon, a wooden stick, and a plastic ruler in separate glasses of water at 70°C. After 30 minutes, the student carefully touches each object and records any observations in a table.

Based on the student’s observations, which statement is true?

• Heat can easily travel through metals.

• Metals are good conductors of electricity.

• Heat can easily travel through nonmetals.

• Nonmetals are good insulators of electricity.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

A student selects three identical Styrofoam cups (1, 2, and 3), paints one white and one black, and covers the outside of the third with aluminum foil, as shown. The student fills each cup with an equal volume of water at room temperature and places the cups in sunlight.

After three hours, the student observes that the water in cup 3 is the coolest. What correctly explains the student’s observation?

• The aluminum foil does not let light pass through it.

• The aluminum foil is too thin to absorb heat.

• The aluminum foil absorbs heat from the surroundings.

• The aluminum foil reflects the light back toward the atmosphere.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4