Match the statements under 'A' with those under column 'B': Statement 'A' Term 'B' 1. Transmission of heat from one particle to another of medium. i. Radiation 2. Transmission of heat with actual movement of particles of medium. ii. Thermometer 3. Direct transmission of heat from 'source point' to the 'receiving point' iii. Clinical thermometer 4. Device to measure the degree of hotness. iv. Conduction 5. Device to measure temperature of human body. v. Convection

1. Transmission of heat from one particle to another of medium. - iv. Conduction Transfer of heat without the actual movement of particles of the medium is called conduction. It occurs in solids. 2. Transmission of heat with actual movement of particles of medium. - v. Convection Convection is the transmission of heat with actual movement of particles of medium. It occurs in fluids. 3. Direct transmission of heat from 'source point' to the 'receiving point'. - i. Radiation Heat energy is transferred from the 'source point' to the 'receiving point' without affecting the medium in any way through which it travels is called radiation. 4. Device to measure the degree of the hotness. - ii. Thermometer Thermometer is the device to measure the degree of hotness or coldness. It measures temperature in degree centigrade, degree fahrenheit, and kelvin. 5. Device to measure the temperature of human body. - iii. Clinical Thermometer Clinical thermometer is used to measure the temperature o f the human body. It measures temperature in degre e centigrade a nd degree fahrenheit. Statement A Term B 1. Transmission of heat from one particle to another of medium. iv. Conduction 2. Transmission of heat with actual movement of particles of medium v. Convection 3. Direct transmission of heat from 'source point' to the 'receiving point' i. Radiation 4. Device to measure the degree of the hotness ii. Thermometer 5. Device to measure the temperature of human body. iii. Clinical Thermometer

E M B I B E

S. Chand's SCIENCE For Class VII>Chapter 4 - Heat and Temperature>EXERCISES>Q I

EASY

7th CBSE

IMPORTANT

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Heat energy travelling from particle to particle without actual movement of the particles within the medium.

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Important Questions on Heat and Temperature

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IMPORTANT

S. Chand's SCIENCE For Class VII>Chapter 4 - Heat and Temperature>EXERCISES>Q I

Heat energy is collected by the particles in the medium and the particles themselves moves carrying heat energy with them.

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IMPORTANT

S. Chand's SCIENCE For Class VII>Chapter 4 - Heat and Temperature>EXERCISES>Q I

Name the method by which heat energy is transferred from the 'source point' to the 'receiving point' without affecting (heating) the medium in any way through which it travels.

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IMPORTANT

S. Chand's SCIENCE For Class VII>Chapter 4 - Heat and Temperature>EXERCISES>Q I

Melting point of ice on a thermometer is

K^{°} C

. What is the value of

K

?

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IMPORTANT

S. Chand's SCIENCE For Class VII>Chapter 4 - Heat and Temperature>EXERCISES>Q I

Boiling point of water in degree Celsius on a thermometer.

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IMPORTANT

S. Chand's SCIENCE For Class VII>Chapter 4 - Heat and Temperature>EXERCISES>Q I

Answer in one word.

The degree of the hotness.

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7th CBSE

IMPORTANT

S. Chand's SCIENCE For Class VII>Chapter 4 - Heat and Temperature>EXERCISES>Q II

Match the statements under 'A' with those under column 'B':

Statement 'A'	Term 'B'
1. Transmission of heat from one particle to another of medium.	i. Radiation
2. Transmission of heat with actual movement of particles of medium.	ii. Thermometer
3. Direct transmission of heat from 'source point' to the 'receiving point'	iii. Clinical thermometer
4. Device to measure the degree of hotness.	iv. Conduction
5. Device to measure temperature of human body.	v. Convection