Heat flows from a hotter object to a colder object until both reach ___ temperature.

The same

Fill in the blanks: The Celsius scale is divided into ___ degrees, with the melting point of ice at ___°C.

100, 0

What is the primary mode of heat transfer in solids called?

Conduction

True or False: Alcohol thermometers can measure temperatures higher than 100°C.

False, alcohol thermometers cannot measure temperatures higher than 78°C.

What is the significance of the kink in a mercury thermometer?

It prevents the mercury from contracting back into the bulb before the temperature is read.

Fill in the blanks: The melting point of pure ice on the Fahrenheit scale is ___°F.

32

Heat energy is measured in ___ in the International System of Units.

Joules (J)

True or False: Radiation requires a medium for heat transfer.

False, radiation does not require a medium.

What is the role of air in insulation regarding heat transfer?

Air acts as an insulator by trapping heat and preventing its transfer.

Describe how heat is transferred by convection.

Heat transfers through fluid motion.

• Warm fluids rise upwards.

• Cool fluids sink downwards.

• Creates a heat transfer cycle.

What is the formula to convert Celsius to Fahrenheit?

F = (C × 9/5) + 32