The direction in which the wave is travelling is referred to as _________________.

Light is made up of _________________ waves that oscillate at different angles relative to the direction of ____________________________

On a slinky spring, _________________ refers to where the coils are further apart.

A wave generator with a frequency of 50 Hz produces water waves with a wavelength of 20cm.

V= freq x wavelength

The wavelength of a wave travelling at 11km/s with a frequency of 5.5kHz.

v = fλ

Vibrations that travel through a substance (medium).

_________________ are perpendicular to the direction the waves travels

A light emits visible light. What is the intensity 2m from the source.

I = k/r²

A mobile phone emits a microwave.

At what distance is the intensity 7.5. ( k=3)

I = k/r²

A broadcast antennae has an intensity of 300 at 450m away, What is the intensity 700 m away?

I=k/r²

How many times smaller will the intensity of the jellyfish light be at 20 cm, from when Dory sees the light at 8 cm away?

I₁/I₂ = (d₂/d₁)²

A sound wave travels through a solid with a wavelength of 2.1 m and a frequency of 300 Hz. Calculate its speed

V=fλ

A musical note has frequency 512 Hz.

Calculate its wavelength. Speed of sound in air is 330 m/s

V=fλ

A sound wave travels through a liquid with a wavelength of 1.5 m and a speed of 450 m/s.

Calculate its frequency (f) and period (T).

v=fλ and T=1/f

If a thunder clap comes 1.5s after the lightning strike, how far away is the strike? The speed of sound is 330 m/s.

Speed= distance/time

FM or short-wave local radio is transmitted at 95.2 MHz. What is the radio wavelength? The speed of light is 3 x 10⁸ m/s

V=fλ

Waves generated by giant statues landing after McGonagall released the Piertotum locomotum spell, have a low frequency of 0.2Hz and a speed of 8km/s.

Find the wavelength and period of the waves.

 $\frac{I2}{I1}=\left(\frac{d1}{d2}\right)^2$  How many times larger will the intensity of Kion's roar be at 2m from him, compared to 50m away?