Physics 105 Midterm

Front

What happens to frequency when wavelength increases?

Back

If the Wavelength increases, the Frequency must decrease to compensate.

Front

What determines color?

Back

Color is determined by Frequency (Hz), Wavelength (λ), and the brain's interpretation of electrical signals.

Front

What is the speed of light in a vacuum?

Back

3.0 x 10^8 m/s (or 300,000 km/s).

Front

Which color of light has the smallest wavelength?

Back

Blue.

Front

Who was the first scientist to demonstrate that light had a finite speed?

Back

Ole Roemer.

Front

What is the relationship between wavelength, frequency, and velocity in waves?

Back

Velocity = Wavelength x Frequency.

Front

What is the electromagnetic spectrum?

Back

The range of all types of electromagnetic radiation, including visible light, radio waves, and X-rays.

Front

Define wavelength.

Back

The distance between successive crests of a wave, typically measured in meters.

Front

What is frequency?

Back

The number of waves that pass a point in one second, measured in Hertz (Hz).

Front

What is the formula for calculating the speed of a wave?

Back

Speed = Wavelength x Frequency.