Which of the following is the best definition of temperature?
1
30 sec
SC7.SPS.1
Q.
Which of the following is the SI unit for temperature?
2
30 sec
Q.
Convert 30°C to Kelvin.
3
30 sec
Q.
The temperature in London is a chilly 32°F. What is this temperature in Celsius (°C)?
4
30 sec
Q.
You need to measure a temperature that could drop as low as -80°C. Which thermometer would be the most suitable?
5
30 sec
Q.
Imagine you have two blocks of the same material – Block A and Block B. Block A has twice the mass of Block B, but both are at the same temperature. Which of the following statements is true?
6
30 sec
Q.
The amount of heat energy required to change the state of a substance without changing its temperature is called its:
7
30 sec
Q.
Which of the following factors does not affect the amount of heat needed to change the temperature of a substance?
8
30 sec
Q.
Calculate the amount of heat needed to completely melt 50 g of ice at 0°C.
9
30 sec
Q.
How much heat is needed to raise the temperature of 100 g of water from 20°C to 80°C?
10
30 sec
Q.
On a cold winter day, you touch a metal railing, and it feels very cold. Why does this happen?
11
30 sec
Q.
Which of the following is an example of heat transfer by convection?
12
30 sec
Q.
Heat transfer through electromagnetic waves is known as:
13
30 sec
Q.
You feel the warmth of a campfire mainly due to:
14
30 sec
Q.
Two objects in thermal contact are in thermal equilibrium when:
15
30 sec
Q.
A cup of hot tea left on a table gradually cools down to room temperature. What is the primary mechanism of heat transfer in this scenario?
16
30 sec
Q.
You mix 100 g of water at 20°C with 50 g of water at 80°C. Assuming no heat is lost to the surroundings, what is the final temperature of the mixture?
17
30 sec
Q.
Which of the following is an example of a situation where thermal equilibrium is reached?
18
30 sec
Q.
Why are expansion gaps left between sections of concrete in bridges and sidewalks?
19
30 sec
Q.
Which materials would be the best choice for making cooking pots and pans?
