Understanding Temperature and Heat

What is the definition of temperature?

• Temperature is the amount of heat energy in a substance.

• Temperature refers to the color of an object.

• Temperature is a measure of the average kinetic energy of particles in a substance.

• Temperature is the measure of a substance's volume.

How is temperature measured in Celsius?

• Temperature is measured in Celsius using a thermometer.

• Temperature is measured in Celsius using a stopwatch.

• Temperature is measured in Kelvin using a ruler.

• Temperature is measured in Fahrenheit using a barometer.

What instrument is commonly used to measure temperature?

• barometer

• thermometer

• hygrometer

• anemometer

Explain the difference between Celsius and Fahrenheit scales.

• Celsius is based on the average temperature of the Earth, while Fahrenheit is based on the human body temperature.

• Celsius uses 0°F and 100°F as its reference points, while Fahrenheit uses 0°C and 100°C.

• Celsius is a scale used only in Europe, while Fahrenheit is used worldwide.

• Celsius is based on water's freezing and boiling points at 0°C and 100°C, while Fahrenheit uses 32°F and 212°F.

What is absolute zero and its significance in temperature measurement?

• Absolute zero is 0 Kelvin (-273.15°C) and signifies the lowest possible temperature where atomic motion stops.

• Absolute zero is -459.67°F and is the highest temperature achievable.

• Absolute zero is 100 Kelvin and is the freezing point of water.

• Absolute zero is 0 degrees Celsius and indicates the boiling point of helium.

How does a thermometer work to measure temperature?

• A thermometer measures temperature by using a digital display that shows the current temperature.

• A thermometer measures temperature by using a temperature-sensitive material that expands or contracts with temperature changes.

• A thermometer measures temperature by relying on the pressure of gases inside a sealed container.

• A thermometer measures temperature by using a liquid that changes color with temperature variations.

What are the common units of temperature measurement?

• Liters

• Celsius, Fahrenheit, Kelvin

• Kilograms

• Miles

Describe how temperature affects the state of matter.

• Temperature has no effect on the state of matter.

• Temperature influences the state of matter by changing the energy and movement of particles, leading to transitions between solid, liquid, and gas.

• Temperature only affects gases, not liquids or solids.

• Higher temperatures always result in solids.

What is the role of thermal expansion in temperature measurement?

• Thermal expansion allows for accurate temperature readings by correlating temperature changes with the expansion of materials.

• Thermal expansion decreases the accuracy of temperature readings.

• Thermal expansion is irrelevant to temperature measurement.

• Thermal expansion only affects solid materials, not liquids or gases.

How can temperature be converted from Celsius to Kelvin?

• K = °C * 1.8

• K = °C - 273.15

• K = °C + 273.15

• K = °C + 100