Practice Final 2 Unit 2

Which state of matter has particles that are close together but can move past each other?

• plasma

• gas

• liquid

• solid

What is the process called when a solid changes directly into a gas?

• melting

• sublimation

• condensation

• evaporation

Which state of matter takes the shape of its container?

• solid

• liquid

• gas

• plasma

Before: molecules move around

After: molecules move in place

• Before: liquid

  After: solid

• Before: liquid

  After: gas

• 
  Before: gas

  After: liquid

• Before: solid

  After: liquid

What process changes a material from gas to liquid?

• Adding energy

• Removing energy

• Removing particles

• Adding heat

What is the relationship between temperature and kinetic energy?

• 
  As temperature increases, kinetic energy decreases.

• As temperature decreases, kinetic energy decreases.

• As temperature decreases, kinetic energy increases.

• As temperature increases, kinetic energy increases.

You are attending your sister’s soccer game on a hot summer day. Her team colors are black and white and you want to support her by wearing her team colors. You have a black tee shirt and a white t-shirt. Which shirt will keep you cooler while sitting in the sun? Select 2 that apply. 

• 
  I will choose the white tee shirt because white reflects light.

• 1. I will choose the white tee shirt because it absorbs the most energy to keep me cool.

• 
  I choose my black tee shirt to keep me the coolest as it has the best logos.

• 
  I choose the white tee shirt because the black tee shirt will get hotter as dark colors absorb more light than bright colors. The absorbed light energy gets transformed into TE and the person wearing the dark-colored shirt will be warmer.

A student observed that the outside of a cup got warmer when it was filled with a hot beverage. The student then performed an investigation to observe the effect a hot object would have on room-temperature water. 

- the student started by placing a thermometer and 30 mL of water inside a cup

- the student also boiled 150 mL of water in a beaker and then removed the beaker from the heat source

- the student then tied metal washers to a string and took their temperature to ensure they were at room temperature by placing a thermometer on the metal washers

- the student then lowered the washers into the beaker of water as shown in figure 1

The molecules that make up the different materials in the passage have different kinetic energies. Select the answer that provides the correct order of the samples from the greatest kinetic energy of the molecules at the top of the list to the least kinetic energy at the bottom. 

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  water in the beaker after it comes to a boil

  water in the cup after the washer is added

  water in the cup before the washer is added

• water in the cup after the washer is added

  water in the beaker after it comes to a boil

  water in the cup before the washer is added

• water in the cup before the washer is added

  water in the beaker after it comes to a boil

  water in the cup after the washer is added

• water in the cup after the washer is added

  water in the cup before the washer is added

  water in the beaker after it comes to a boil

A student observed that the outside of a cup got warmer when it was filled with a hot beverage. The student then performed an investigation to observe the effect a hot object would have on room-temperature water. 

- the student started by placing a thermometer and 30 mL of water inside a cup

- the student also boiled 150 mL of water in a beaker and then removed the beaker from the heat source

- the student then tied metal washers to a string and took their temperature to ensure they were at room temperature by placing a thermometer on the metal washers

- the student then lowered the washers into the beaker of water as shown in figure 1

As the experiment goes longer than 90 seconds, the temperature of the water in the cup will __________ and the temperature of the washers will ___________. This will continue until the temperatures are the same.

• 
  
  increase

  decrease

• increase

  increase

• decrease

  decrease

• decrease

  increase

A student observed that the outside of a cup got warmer when it was filled with a hot beverage. The student then performed an investigation to observe the effect a hot object would have on room-temperature water. 

- the student started by placing a thermometer and 30 mL of water inside a cup

- the student also boiled 150 mL of water in a beaker and then removed the beaker from the heat source

- the student then tied metal washers to a string and took their temperature to ensure they were at room temperature by placing a thermometer on the metal washers

- the student then lowered the washers into the beaker of water as shown in figure 1

The student used Table 1 to record the temperatures of the washers and of the water in the cup after the washers were placed in the cup. However, the student forgot to label the table. Select the bar graph that correctly shows the temperatures that represent each material in Table 1.

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• 
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