EASY

Earn 100

What units are used to measure heat intensity?

Important Questions on Measurement and Effects of Heat

EASY

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Ice is used in a cooler in order to cool its contents. Which of the following will speed up the cooling process?

EASY

Science>Physics>Measurement and Effects of Heat>Heat and Sources of Heat

The SI unit of Heat is

:

MEDIUM

Science>Physics>Measurement and Effects of Heat>Heat and Sources of Heat

A thin paper cup filled with water does not catch fire when placed over a flame. This is because

MEDIUM

Science>Physics>Measurement and Effects of Heat>Heat and Sources of Heat

Name the physical quantity which is measured in calories. How is calorie related to the SI unit of that quantity?

EASY

Science>Physics>Measurement and Effects of Heat>Heat and Sources of Heat

Let heat is not lost by any other process between two objects in thermal contact, "Net heat lost (by hot body) $=$ Net heat gain (by cold body)."

Above statement indicates a principle. Write the name of that principle.

MEDIUM

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On what factors do the amount of heat required to raise the temperature of an object up to some fixed temperature depend?

EASY

Science>Physics>Measurement and Effects of Heat>Heat and Sources of Heat

A Kelvin thermometer and a Fahrenheit thermometer both give the same reading for a certain sample. What would be the corresponding reading in a Celsius thermometer?

EASY

Science>Physics>Measurement and Effects of Heat>Heat and Sources of Heat

What would be the final temperature of a mixture of

50 g

of water at

20 ° C

temperature and

50 g

of water at

40 ° C

temperature?

HARD

Science>Physics>Measurement and Effects of Heat>Heat and Sources of Heat

A calorimeter has mass

100 g

and specific heat

0.1 kcal / kg ℃

. It contains

250 gm

of liquid at

30 ℃

having a specific heat of

0.4 kcal / kg ℃

. If we drop a piece of ice of mass

10 g

0 ℃

, What will be the temperature of the mixture? (Take Specific latent heat of fusion of ice as

80 \frac{cal}{g}

)

HARD

Science>Physics>Measurement and Effects of Heat>Heat and Sources of Heat

Heating effect per second of current t flowing through a conductor of resistance R when a voltage V is applied across it for 1 second is:

EASY

Science>Physics>Measurement and Effects of Heat>Heat and Sources of Heat

What temperature is the same on the Celsius scale as well as on the Fahrenheit scale?

EASY

Science>Physics>Measurement and Effects of Heat>Heat and Sources of Heat

Cooking gas containers are kept in a lorry moving with uniform speed. The temperature of the gas molecules inside will:

MEDIUM

Science>Physics>Measurement and Effects of Heat>Heat and Sources of Heat

On what factors does the heat required by an object to increase its temperature depends?

MEDIUM

Science>Physics>Measurement and Effects of Heat>Heat and Sources of Heat

At what temperature (in degree celsius), the numerical values on Celsius and Fahrenheit scales become equal?

MEDIUM

Science>Physics>Measurement and Effects of Heat>Heat and Sources of Heat

How to determine the specific heat of liquid by using the method of mixtures?

MEDIUM

Science>Physics>Measurement and Effects of Heat>Heat and Sources of Heat

In the following problem, there is one question and three statements I, II and III given below the question. You have to decide whether the data given in the statements is sufficient to answer the question. Read all the statements carefully and find out which of the given statements is/are sufficient to answer the given question. Choose the correct alternative.

In which year was Amit born?
Statements:
I. Amit is six years older than Mahesh.
II. Mahesh's brother was born in 1982.
II. Amit's brother is 8 years younger than Mahesh's brother who is nine years younger than Mahesh.

MEDIUM

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