Measurement of Temp 2024

Which physical property varies with temperature and can be used for the measurement of temperature?

• electromotive force

• linearity

• sensitivity

• fix point

What is the purpose of fixed points on a temperature scale?

• To confuse scientists
• To provide a rough estimate of temperature
• To make the scale look more complicated
• Reference points for accurate and consistent temperature measurement

Bob found an old thermometer in his room.

It was still functional however, the 100°C marking had faded away.

Bob measured that the distance between 0°C and 22°C is 4.4 cm.

How far away from the 22°C mark should Bob make the new 100°C marking?

• 15.6 cm

• 17.6 cm

• 20 cm

• 22 cm

Which term refers to the ability of a thermometer to detect small changes in temperature?

• sensitivity
• linearity

• quick response

• intensity

The structure of a liquid-in-glass thermometer consists of:

• a glass tube with air inside
• a plastic tube with a solid inside
• a glass bulb filled with liquid

• a metal tube with a gas inside

How does a liquid-in-glass thermometer work?

• The liquid expands when heated, causing the level to rise in the glass tube.

• By emitting heat when the temperature changes
• The glass expands when heated, causing the liquid to rise in the bulb.

• The glass contracts when heated, causing the liquid to rise in the bulb.

What is the structure of a thermocouple?

• A single metal wire
• Two different types of metal wires joined together
• A plastic casing with no metal wires
• A glass tube filled with liquid

How does a thermocouple measure temperature?

• By measuring the speed of sound in the surrounding air
• By analyzing the color of the object being measured
• By using a digital camera to capture the temperature
• By using two different metals joined together at one end to create a voltage proportional to the temperature difference.

When is a thermocouple typically used for temperature measurement?

• In cooking and baking
• For measuring body temperature
• Only in outdoor temperature monitoring
• When measuring temperatures that vary rapidly

Which term refers to the ability of a thermometer to measure a wide range of temperatures?

• range
• narrow
• width
• limited