Temperature

Question 1

Explain what is meant by thermometric substances

Answer 1

Thermometric substances are substances that have physical properties that vary linearly and continuously with temperature.

Question 2

What is ice point?

Answer 2

The temperature of pure melting ice at standard atmospheric pressure

Question 3

What is steam point

Answer 3

The temperature at which pure boiling water changes into steam at standard atmospheric pressure.

Question 4

What is internal energy

Answer 4

The combination of total KE and PE of the molecules in the body.

Question 5

How to convert degree Celcius into Kelvin

Answer 5

T= θ + 273

Question 6

Formula for thermometers

Answer 6

Refer to notes

Question 7

Thermometric property of Resistance Thermometer

Answer 7

Electric resistance of metal wire

Question 8

Advantages of a resistance thermometer

Answer 8

1. Accurate
2. High sensitivity
3. Measure wide range of temperatures

Question 9

Thermometric property of Liquid-in-glass thermometer

Answer 9

Volume od fixed mass of liquid

Question 10

Advantage of Liquid-in-glass thermometer

Answer 10

1. Portable
2. Independent of other equipment
3. Cheap and affordable

Question 11

Thermometric property of Thermocouple

Answer 11

Electromotive force

Question 12

Advantages of a thermocouple

Answer 12

1. Measure a wide range of temperatures
2. Measure temperature at a point
3. Measure temperatures that change rapidly