PS Midterm Review 2

Front

What property gives objects the ability to bounce?

Back

Elasticity is the property that allows objects to return to their original shape after being deformed, enabling them to bounce.

Front

What is the condition when two bodies reach the same temperature?

Back

Thermal equilibrium is the state in which two bodies have reached the same temperature and no heat flows between them.

Front

Which group in the periodic table contains the noble gases?

Back

Group 18 of the periodic table contains the noble gases, which are known for their lack of reactivity.

Front

Why does a hot air balloon rise in air?

Back

A hot air balloon rises because the density of the air inside the balloon is less than the density of the air outside the balloon.

Front

What can be inferred when glycerol falls to the bottom of water?

Back

It indicates that the water is more dense than the glycerol.

Front

What is density?

Back

Density is the mass of an object divided by its volume, often expressed in grams per cubic centimeter (g/cm³).

Front

What is the principle of buoyancy?

Back

The principle of buoyancy states that an object submerged in a fluid experiences an upward force equal to the weight of the fluid displaced by the object.

Front

What is thermal radiation?

Back

Thermal radiation is the emission of electromagnetic waves from all matter that has a temperature greater than absolute zero.

Front

What is heat transfer?

Back

Heat transfer is the movement of thermal energy from one object or substance to another due to a temperature difference.

Front

What is the difference between conduction and convection?

Back

Conduction is the transfer of heat through direct contact, while convection is the transfer of heat through the movement of fluids.