Physics Test 20

Total Questions: 22

1 - Water freezes at

A ) 0° F
B ) 32° F ✅
C ) -273K
D ) 0K

2 - Normal human body temperature is

A ) 15°C
B ) 37°C
C ) 37°F
D ) 98.6°C ✅

3 - Mercury is used as thermometric material because it has

A ) Uniform thermal expansion
B ) Low freezing point
C ) Small heat capacity
D ) All the above properties ✅

4 - Which of the following material has large specific heat.

A ) Copper
B ) Ice
C ) Water ✅
D ) Mercury

6 - What will be the value of ? for a solid of which? has a value of 2 × 10-5 k-1

A ) 2 x 10-⁵ K-¹
B ) 6×10-⁵ k-¹ ✅
C ) 4× 10-⁵k-¹
D ) 8× 10-⁵ k-¹

7 - Which of the following effects evaporation

A ) Temperature
B ) Wind
C ) Surface area of the liquid
D ) All of the above

8 - Complete the equation T(K) =____

A ) 273 +C ✅
B ) 273-C
C ) 273 +F
D ) 273-F

9 - Absolute zero temperature is

A ) 100K
B ) 0° C
C ) 100°C
D ) -273°C ✅

10 - Latent heat of fusion of 1kg of ice at 0°C is

A ) 33.6 ×10⁵ JKg-¹
B ) 3.36×10⁵ JKg-¹ ✅
C ) 336×10⁵JKg-¹
D ) 3.36× 10⁴ JKg-¹

11 - Unit of specific heat capacity in SI system is

A ) JKg-¹ K-¹
B ) JKgK-¹ ✅
C ) J-¹KgK
D ) JKgK

12 - In thermal expansion B =____

A ) a/3
B ) 2a
C ) 3a ✅
D ) 4a

13 - Which material has large specific heat?

A ) Copper
B ) Ice
C ) Water ✅
D ) Mecury

14 - Water freezes at

A ) 10K
B ) 0°F
C ) 32°F ✅
D ) -273K

15 - Normal human body temperature is

A ) 37°F
B ) 37°C ✅
C ) 37K
D ) 98.6°C

17 - Which of the following effects evaporation?

A ) Temperature
B ) Wind
C ) Surface are of liquid
D ) All of these

19 - Mercury is used as thermometric material because it has

A ) Uniform thermal expansion
B ) Low freezing point
C ) Small heat capacity
D ) All the given properties ✅

20 - The specific heat of water is

A ) 800 JKg-¹ K-¹
B ) 4200 JKg-¹ K-¹ ✅
C ) 2500JKg-¹ K-¹
D ) 1760JKg-¹ K-¹

22 - The boiling point of water is

A ) 78°C
B ) 90°C
C ) 97°C
D ) 100°C ✅