If the temperature of a balloon were to decrease suddenly, the volume of the balloon would also decrease. What explains this phenomenon?

Removing thermal energy decreases the kinetic energy of the gas molecules and the molecules move closer together, making the balloon smaller.

Removing thermal energy decreases the kinetic energy of the gas molecules and the molecules move farther aparat, making the balloon smaller.

Removing thermal energy increases the kinetic energy of the gas molecules and the molecules move farther apart, making the balloon smaller.

Removing thermal energy increases the kinetic energy of the gas molecules and the molecules move closer together, making the balloon smaller.

You have been studying heat energy transfer in science class. Your task today is to design a solar oven to make s'mores: graham crackers, marshmallows, and melted chocolate. When you have successfully completed your oven, you can eat the s'mores. Your group has constructed the solar oven you see here. How is the solar energy transferred into the oven and directed to the s'mores on the pan?

Solar energy is transferred via radiation.

Solar energy is transferred via convection.

Solar energy is transferred via conduction.

Solar energy is transferred via reflection.

Your solar oven was the most efficient of the designs in class and your s'mores were ready much faster than any other group's. What design features helped transfer heat energy efficiently and directly to the grahams and marshmallows?

The aluminum foil walls reflected incoming solar energy to the pan and the s'mores. The tin pie pan heated up quickly because it is metal and conducted heat energy to the grahams.

The aluminum foil walls conducted heat energy toward the tin pan holding the s'mores. The tin pan radiated heat waves up towards the s'mores, causing them to absorb heat energy.

The aluminum foil walls conducted heat energy toward the tin pan holding the s'mores. The tin pan, being metal and a good conductor, heated up quickly and melted the marshmallows.

The aluminum foil walls reflected incoming solar energy to the s'mores and the tin pie pan. The tin pie pan, because it is metal, quickly reflected the heat energy to the s'mores.

Assume that all three models shown here are the same pure substance. Which of these statements applies to the activity of the substances as shown here? Select the THREE that apply.

Model C has the highest temperature.

Model A has the lowest kinetic energy.

Model C has the highest kinetic energy.

Model A has the highest temperature.

Consider the phase change taking place in the picture. You could use ALL BUT ONE statement to describe what is happening here. That is:

The space between the particles remains the same.

The attractive force between the particles is decreasing.

Consider the cooling curve above. The substance is changing state from a gas to a liquid to a solid. As the temperature changes we also know that

there is a decrease in kinetic energy and the molecules get closer together.

there is a decrease in molecular attraction and kinetic energy.

kinetic energy increases while potential energy decreases during the phase changes.

although the molecules get closer together, there is no real change in the energy of the molecules.

Whenever there is a change of state, such as a solid to liquid or liquid to gas, heat energy can be added without a temperature change because

the change of state requires energy.

the added energy is not needed.

the energy is lost to the system.

the energy is lost to the atmosphere.

Sylvia wants to place a bottle of lemonade into a bucket of ice so that it will be cold an hour later when she is ready to drink it. She thinks that this will keep it colder than if she leaves it on the counter for the same amount of time. Which statement correctly explains Sylvia’s reasoning?

Sylvia is correct because heat energy will transfer from the bottle to the ice, causing the lemonade to get colder.

Sylvia is correct because heat energy will transfer from the ice to the bottle, causing the lemonade to get colder.

Sylvia is incorrect because heat energy will transfer from the bottle to the ice, causing the lemonade to get warmer.

Sylvia is incorrect because heat energy will transfer from the ice to the bottle, causing the lemonade to get warmer.

Which of the following features describes how a Styrofoam box helps in minimizing thermal energy loss?

Reflective metal lining inside the box

Which statement best explains what happens to the atoms in silver (Ag) when the temperature of the metal increases?

The motion of the atoms remains the same.

The motion of the atoms becomes very orderly.

A cup of hot chocolate with a temperature of 80ºC is placed on a table in a 20ºC room. What happens to the molecular motion of the hot chocolate when it is left on the table.

The molecules move more slowly as the velocity decreases.

The molecules move quickly as the velocity increases.

The molecules stop moving and the average velocity becomes 0.

The molecules do not change because this is a physical change.

Waves and Energy Review

Authored by Laura Miles

Science

6th Grade

NGSS covered

Used 8+ times

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MULTIPLE SELECT QUESTION

5 mins • 1 pt

Which TWO of the following allow light to be absorbed?

green light on blue surface

red light on black surface

green light on green surface

visible light on white surface

white light on transparent surface

Tags

NGSS.MS-PS4-2

MULTIPLE SELECT QUESTION

5 mins • 1 pt

Which TWO of the following allow light to be reflected?

green light on blue surface

red light on black surface

green light on green surface

visible light on white surface

white light on transparent surface

Tags

NGSS.MS-PS4-2

MULTIPLE SELECT QUESTION

5 mins • 1 pt

Which TWO of the following allow light to be transmitted?

red light on transparent surface

red light on black surface

green light on green surface

visible light on white surface

white light on transparent surface

Tags

NGSS.MS-PS4-2

MULTIPLE SELECT QUESTION

5 mins • 1 pt

Which TWO of the following actions would result in a SOLID?

water turns to ice cubes in the freezer

a pot of water boils on the stove

snow turns to rain

ice cream melts

rain turns to snow

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

MULTIPLE SELECT QUESTION

5 mins • 1 pt

Which TWO of the following actions would result in a LIQUID?

water turns to ice cubes in the freezer

a pot of water boils on the stove

snow turns to rain

ice cream melts

rain turns to snow

Tags

NGSS.MS-PS1-4

MULTIPLE SELECT QUESTION

5 mins • 1 pt

Which TWO of the following actions would result in a GAS?

water turns to ice cubes in the freezer

a pot of water boils on the stove

Water in a puddle evaporates

ice cream melts

rain turns to snow

Tags

NGSS.MS-PS1-4

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

When you clap your hands or shout, the sound waves are ____________ off the wall and you hear an echo.

absorbed

reflected

transmitted

Tags

NGSS.MS-PS4-2

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Waves and Energy Review

Which TWO of the following allow light to be absorbed?

Which TWO of the following allow light to be reflected?

Which TWO of the following allow light to be transmitted?

Which TWO of the following actions would result in a SOLID?

Which TWO of the following actions would result in a LIQUID?

Which TWO of the following actions would result in a GAS?

When you clap your hands or shout, the sound waves are ____________ off the wall and you hear an echo.

When you stomp your feet loudly on the carpet, some of the sound waves are _____________ and you notice the sound isn't as loud.

If someone is playing music outside the room, you might hear is even if the window is closed because sound waves are...

If the temperature of a balloon were to decrease suddenly, how would the balloon change?

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