MOY 2024 Review 7.8BCA, 7.9ABC

Examine Table 1 containing the eccentricity values for four planets. According to Table 1, which planet has the most elliptical orbit? TEKS 7.9B

• Planet A

• Planet B

• Planet C

• Planet D

Tags

TEKS.SCI.7.9B

Infer: Scientists have discovered a new planet and are interested in determining how great its gravitational pull is on surrounding planets. What factors do they need to consider? TEKS 7.9B

• Velocity and mass

• Mass and distance

• Mass and volume

• Density and distance

Tags

TEKS.SCI.7.9B

When a substance is cooled, what happens to the particles of the substance?

• kinetic energy increases

• kinetic energy decreases

• potential energy increases

• potential energy decreases

Tags

TEKS.SCI.7.8C

TEKS.SCI.7.8B

Two equal volumes of water are in a large container, separated by a divider. The water on one side is at 60°C and the water on the other side is 40°C. How will you know when the container has reached thermal equilibrium once you have removed the divider?

• The temperature of the water on the warmer side will have cooled to 40°C.

• The temperature throughout the container will be approximately 50°C.

• The temperature of the water on the cooler side will have warmed to 60°C.

• Convection currents will prevent this system from reaching thermal equilibrium.

Tags

TEKS.SCI.7.8C

TEKS.SCI.7.8B

Alayna wants to make a popsicle, so she freezes a cup of juice. If the juice has cooled from 20 degrees Celsius to 10 degrees Celsius, what has happened to the kinetic energy of the juice molecules?

• The average kinetic energy of the molecules has about doubled.

• The average kinetic energy of the molecules is about half what it was originally.

• The average kinetic energy of the molecules has increased by about 10 times.

• The average kinetic energy of the molecules has decreased by about 10 times.

Tags

TEKS.SCI.7.8B

Label the image with the types of thermal energy transfer depicted.

• Convection

• 
• Radiation

• 
• Conduction

• 

Tags

TEKS.SCI.7.8A

Select the correct answers about the thermometers in the image. Select all that apply. (More than one answer)

• The liquid in thermometer B has greater kinetic energy than in thermometer A.

• The liquid in glass A has a higher temperature than in glass B.

• The motion of the particles in thermometer A is faster than in thermometer B.

• The liquid in glass A has greater kinetic energy than in glass B.

Tags

TEKS.SCI.7.8B

A girl stirs soup with a metal spoon. Which process causes her hand to get warmer?

• conduction

  
  

• convection

  
  

•  insulation

  
  

•  radiation

Tags

TEKS.SCI.7.8A

Luis and Marta built a solar oven. They cut the top of a box to function like a lid. They then lined the lid and the entire inside of the box with aluminum foil. They placed a piece of black construction paper at the bottom of the box, and after putting hotdogs on a plate inside so they could cook, they sealed the top with plastic wrap. Their solar oven is shown in the image. Which type of energy transfer is maximized by the aluminum foil?

• Conduction

• Convection

• Radiation

• Both Convection and Radiation

Tags

TEKS.SCI.7.8A

Which of these is an example of energy transfer by radiation?

• A piece of warm toast makes the plate it is sitting on feel warm.

  
  

•  Your body feels warm when you stand near a hot stove.

•  Ice placed in a cup of warm tea slowly melts.

•  Hot air above a campfire rises.

Tags

TEKS.SCI.7.8A