Understanding The Weather and the tools used to collect data

What does temperature measure?

• The total amount of particles in a system

• The amount of heat energy available for work in a system

• The volume of a system

• The pressure exerted by a system

Answer explanation

Temperature measures the amount of heat energy available for work in a system, making it the correct choice.

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Heat energy is related to what aspect of atoms and molecules?

• Their electrical charge

• Their mass

• Their average kinetic energy

• Their color

Answer explanation

Heat energy is related to the average kinetic energy of atoms and molecules. As temperature increases, the average kinetic energy of particles also increases, leading to more heat energy.

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What happens to particles at higher temperatures?

• They become heavier

• They move faster

• They become smaller

• They move slower

Answer explanation

Particles move faster at higher temperatures due to increased kinetic energy.

Tags

NGSS.MS-PS1-4

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What is thermal equilibrium?

• When the whole system is at the same temperature

• When heat stops flowing in a system

• When a system can no longer absorb heat

• When a system reaches its highest possible temperature

Answer explanation

Thermal equilibrium is when the whole system is at the same temperature, allowing no heat transfer within the system.

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NGSS.MS-PS1-4

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What is thermal expansion?

• The dissolving of materials in a solvent

• The expansion of materials with higher temperature

• The bending of materials under pressure

• The contraction of materials when cooled

Answer explanation

Thermal expansion refers to the expansion of materials when exposed to higher temperatures.

Tags

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What can cause heat through friction?

• Cutting a piece of wood

• Freezing water into ice

• Rubbing your hands together

• Pouring water into a glass

Answer explanation

Rubbing your hands together can cause heat through friction as the motion generates heat energy.

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In what unit is heat measured?

• Fahrenheit

• Joules

• Pounds

• Liters

Answer explanation

Heat is measured in Joules, making it the correct unit of measurement for heat.

What happens when heat energy is transferred to an object?

• Its temperature changes

• Its mass increases

• Its temperature remains the same

• It changes color

Answer explanation

When heat energy is transferred to an object, its temperature changes. This is because heat energy causes the particles in the object to move faster, resulting in an increase in temperature.

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NGSS.MS-PS1-4

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Why do hot objects feel hot?

• Because they emit light

• Because they are moving

• Because they transfer heat to our hand

• Because they change color

Answer explanation

Hot objects feel hot because they transfer heat to our hand, causing a sensation of warmth.

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What causes the sensation of cold when touching ice?

• Ice absorbs light from your hand

• Heat is transferred out of your hand into the ice

• Ice emits cold energy

• Your hand loses its kinetic energy

Answer explanation

The sensation of cold when touching ice is caused by heat being transferred out of your hand into the ice, resulting in a decrease in temperature.

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