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MATTER ITS PROPERTIES & ITS TRANSFORMATION: Change of state
MATTER ITS PROPERTIES & ITS TRANSFORMATION: Heat & Thermal Insulation
MATTER ITS PROPERTIES & ITS TRANSFORMATION: Temperature
Matter: Its Properties & Transformation
THE WORLD OF SCIENCE: Base Physical Quantities, SI Units & Measuring Instruments
THE WORLD OF SCIENCE: Measurement of Density
THE WORLD OF SCIENCE: Measurements of Speed
THE WORLD OF SCIENCE: Scientific Method
THE WORLD OF SCIENCE: Simple application of measurements
The Science World
5/30 MCQs for:
MATTER ITS PROPERTIES & ITS TRANSFORMATION: Heat & Thermal Insulation
Heat can change the state of matter. Which of the following is an example?
Frost forming.
Ice melting.
Steam condensing.
Water freezing.
Heating a piece of metal can cause:
Expansion in volume.
Increase in kinetic energy of particles.
Expansion in length.
All are correct.
Why does metal expand more than wood when heated?
Wood absorbs heat.
Metals have loosely packed particles.
Metals have higher thermal expansion coefficient.
Wood is heavier.
Which unit is used to measure heat in the SI system?
Kelvin.
Joule.
Celsius.
Watt.
Metals expand when heated because:
Particles move slower.
Particles move faster and push each other apart.
Mass increases.
Volume decreases.
