CH.10. HEAT

CH.10. HEAT

6th - 9th Grade

37 Qs

quiz-placeholder

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CH.10. HEAT

CH.10. HEAT

Assessment

Quiz

Mathematics

6th - 9th Grade

Practice Problem

Hard

Created by

Nitin sir

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37 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The SI unit of thermal capacity is:

J °C⁻¹

J K⁻¹

cal °C⁻¹

cal K⁻¹

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The principle of a calorimeter is based on the law of conservation of:

mass

energy

temperature

None of the above

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the temperature rises by 10°C, what is its equivalent rise on the Kelvin scale?

273 K

283 K

10 K

0 K

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The specific heat capacity of glass is 670 J kg⁻¹ K⁻¹. What is the heat capacity of a glass beaker of mass 50 g?

335 J K⁻¹

33.5 J K⁻¹

13.4 J K⁻¹

1.34 J K⁻¹

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A piece of iron of mass 5.5 kg has a thermal capacity of 2,656 J°C⁻¹. What is its specific heat capacity in SI units?

483 J kg⁻¹ K⁻¹

2656 J kg⁻¹ K⁻¹

14608 J kg⁻¹ K⁻¹

None of the above

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A piece of iron of mass 5.5 kg has a thermal capacity of 2,656 J°C⁻¹. How much heat in kJ is needed to warm it by 50°C?

265.6 kJ

132.8 kJ

53.12 kJ

None of the above

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calculate the amount of heat energy required to raise the temperature of 200 g of lead from 30°C to 60°C. Specific heat capacity of lead is 130 J kg⁻¹ K⁻¹.

780 J

3900 J

1560 J

7800 J

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