Quantification: Amount of Energy and Wave Characteristics

Front

What is wavelength?

Back

Wavelength is the distance between successive crests of a wave, typically measured in meters.

Front

How do you calculate wavelength from wave crests?

Back

Wavelength = Total length of the wave (in meters) / Number of wave crests.

Front

What is the relationship between potential energy and kinetic energy?

Back

The total mechanical energy in a closed system is conserved; thus, potential energy can be converted to kinetic energy and vice versa.

Front

If Potential Energy is 10 Joules, what is the Kinetic Energy if energy is conserved?

Back

Kinetic Energy would also be 10 Joules if all potential energy is converted.

Front

What is the formula for calculating kinetic energy?

Back

Kinetic Energy (KE) = 0.5 * mass (m) * velocity (v)^2.

Front

What is the formula for calculating potential energy?

Back

Potential Energy (PE) = mass (m) * gravity (g) * height (h).

Front

If Kinetic Energy is 1000 Joules, what is the Potential Energy if energy is conserved?

Back

Potential Energy would be 1000 Joules if all kinetic energy is converted.

Front

What happens to energy in a closed system?

Back

Energy in a closed system is conserved; it can change forms but cannot be created or destroyed.

Front

What is the unit of energy?

Back

The unit of energy is the Joule (J).

Front

How does the length of a wave affect its frequency?

Back

The frequency of a wave is inversely proportional to its wavelength; as wavelength increases, frequency decreases.