physical science final winter 24

Front

What is speed?

Back

Speed is the distance traveled per unit of time, typically measured in meters per second (m/s).

Front

How do you calculate speed?

Back

Speed = Distance / Time. For example, if an object travels 60 meters in 4 seconds, its speed is 60 m / 4 s = 15 m/s.

Front

What is a habitable zone?

Back

A habitable zone is the region around a star where conditions may be suitable for liquid water to exist, which is essential for life as we know it.

Front

What type of spectra can be used to study the elemental composition of stars?

Back

Continuous spectra, also known as 'bright-line' spectra, can be used to analyze the light emitted by stars to determine their elemental composition.

Front

Which electromagnetic waves have the shortest wavelength?

Back

Gamma rays have the shortest wavelength in the electromagnetic spectrum.

Front

What characteristics are used to classify stars?

Back

Stars are classified based on their size, brightness, and temperature.

Front

What is the formula for calculating distance?

Back

Distance = Speed x Time. For example, if an object moves at 15 m/s for 4 seconds, the distance traveled is 15 m/s x 4 s = 60 m.

Front

What is the relationship between wavelength and frequency in electromagnetic waves?

Back

Wavelength and frequency are inversely related; as the wavelength increases, the frequency decreases, and vice versa.

Front

What is the significance of the electromagnetic spectrum?

Back

The electromagnetic spectrum encompasses all types of electromagnetic radiation, which is crucial for understanding various physical phenomena, including light, heat, and radio waves.

Front

What is the difference between absorption and emission spectra?

Back

Absorption spectra show dark lines where light has been absorbed by elements, while emission spectra show bright lines where light is emitted by elements.