Energy Unit Test

Front

What is a transverse wave?

Back

A transverse wave is a type of wave in which the particle displacement is perpendicular to the direction of wave propagation. An example is a light wave.

Front

What unit is used to measure frequency?

Back

The unit used to measure frequency is Hertz (Hz).

Front

What happens to the potential energy of an object as it falls?

Back

As an object falls, its potential energy is transformed into kinetic energy.

Front

How do you calculate the frequency of a wave?

Back

Frequency (f) can be calculated using the formula: f = v / λ, where v is the wave velocity and λ is the wavelength.

Front

What is the frequency of a wave with a velocity of 80 m/s and a wavelength of 7.5 m?

Back

The frequency is 10.7 Hz.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion, calculated using the formula KE = 1/2 mv², where m is mass and v is velocity.

Front

What is potential energy?

Back

Potential energy is the stored energy of an object due to its position or state, commonly calculated using the formula PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

What is the relationship between frequency and period?

Back

Frequency (f) is the reciprocal of the period (T). The relationship is given by f = 1/T.

Front

What is the formula for calculating wave speed?

Back

Wave speed (v) can be calculated using the formula: v = f × λ, where f is frequency and λ is wavelength.

Front

What is an example of a longitudinal wave?

Back

An example of a longitudinal wave is a sound wave, where the particle displacement is parallel to the direction of wave propagation.