Science MCQs

Practice multiple choice questions with instant feedback. Select an option to see if you're correct.

Total Questions
2100
Page 114 of 210
Question 1131 Easy

What is thermal insulation?

A
Expanding materials
B
Increasing heat transfer
C
Measuring heat
D
Preventing heat transfer
Question 1132 Easy

Which material is commonly used for thermal insulation?

A
Iron
B
Copper
C
Aluminum
D
Wool
Question 1133 Easy

What happens to liquids when heated?

A
They become denser
B
They contract
C
They solidify
D
They expand
Question 1134 Easy

Why do car tyres sometimes burst on hot days?

A
Pressure decreases
B
Air contracts
C
Tyre material weakens
D
Air inside expands
Question 1135 Easy

Why are overhead wires strung loosely?

A
To reduce weight
B
To save wire
C
For safety
D
To allow for thermal expansion/contraction
Question 1136 Easy

Which temperature scale is used in SI units?

A
Rankine
B
Celsius
C
Fahrenheit
D
Kelvin
Question 1137 Easy

What is the principle behind a thermometer?

A
Convection currents
B
Conduction of heat
C
Radiation of heat
D
Thermal expansion of liquid
Question 1138 Easy

What is the effect of cooling on particles?

A
They lose energy and slow down
B
They gain energy
C
They expand
D
They move faster
Question 1139 Easy

What is contraction?

A
Decrease in size due to cooling
B
Increase in size due to heating
C
Transfer of heat
D
Measurement of temperature
Question 1140 Easy

What is the primary method of heat transfer in solids?

A
Conduction
B
Convection
C
Radiation
D
Insulation
Showing 1131-1140 of 2100 questions

Quick Stats

Total Questions 11450
easy 5797
medium 3533
hard 2120

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