phy pro max 2

Front

What is the effect of temperature and pressure on the density of air?

Back

The density of air is affected by temperature and pressure; as temperature increases, density decreases, and as pressure increases, density increases.

Front

What instrument is used to measure wind speed?

Back

An anemometer is used to measure wind speed.

Front

Who was the first person to break the sound barrier?

Back

Chuck Yeager was the first person to break the sound barrier.

Front

What is a unit of pressure?

Back

Pascal is a unit of pressure.

Front

What is aeronautics?

Back

Aeronautics is the study of flight and the design of aircraft, not just gases in motion.

Front

What happens to air density as altitude increases?

Back

Air density decreases as altitude increases.

Front

What is the relationship between pressure and volume in gases?

Back

According to Boyle's Law, pressure and volume are inversely related at constant temperature.

Front

What is the primary gas in Earth's atmosphere?

Back

Nitrogen is the primary gas in Earth's atmosphere, making up about 78%.

Front

What is the purpose of a barometer?

Back

A barometer is used to measure atmospheric pressure.

Front

What is the principle behind the operation of an anemometer?

Back

An anemometer measures wind speed by using rotating cups or blades that spin faster with stronger winds.