Unit 3 Thermal Energy Test Corrections

Two beakers are filled with water. One is placed in the shade, and the other one is placed in direct sunlight. Which of the of the following describe the molecules of the liquid that is in the beaker that was placed in the shade?

• The molecules in the beaker that is in the shade have more kinetic energy than the molecules of the beaker in the sunlight.

• The molecules in the beaker that is in the shade have less kinetic energy than the molecules of the beaker in the sunlight.

• The molecules of the beaker in the shade have no kinetic energy.

• The molecules of the beaker in the shade and the sunlight have equal kinetic energy.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

True or False: Lower temperatures have molecules that move at a faster rate.

• True

• False

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Please select 2 CORRECT answers: During a warm summer day, a car became extremely hot. When a student went to open the car door, he burned his fingers. What TWO forms of energy were responsible for the student burning his fingers?

• radiation

• evaporation

• convection

• conduction

Tags

NGSS.MS-PS3-3

Which of the following experiemental designs would be most helpful in allowing students to investigate the process of CONVECTION?

• Students will use a popcorn maker to pop popcorn by raising the temperature of the air around the kernel. As the kernel heats up, the moisture inside the kernel turns to steam and puts pressure on the outside of ther kernal. Then it pops to make popcorn.

• Students will crack open eggs on the sidewalk outside of the school. They will do this at different times of the day to observe color change.

• Students will place hot water on one side of a mixing tube and cold water on the other. Then the students will add yellow food coloring to the hot water and red food coloring to the cold water. The students will then allow the water to mix and record their observations.

An egg frying in a pan is an example of:

• conduction

• convection

• radiation

Tags

NGSS.MS-PS3-5

Feeling the heat of the sun is an example of:

• conduction

• convection

• radiation

Tags

NGSS.MS-PS4-2

Touching a hot bowl of soup is an example of:

• conduction

• convection

• radiation

A hot air balloon floating is an example of:

• conduction

• convection

• radiation

Warming up next to a heater is an example of:

• conduction

• convection

• radiation

What type of heat transfer occurs in a pot of boiling water?

• Conduction as heat rises and cold sinks.

• Convection as heat rises and cold sinks.

• Conduction as cold rises and heat sinks.

• Convection as cold rises and heat sinks.

Tags

NGSS.MS-PS3-4