1. CP4 – WAVES (p164-167) 1 2 Refraction Wave Equations: Light Key Terms
Match the part of the refraction diagram to the correct key term:
Wave Equations:
Number
Term
Angle of incidence
Angle of refraction
Emergent ray
Incident ray
Normal line
Perspex block
Refracted ray
1. Label the equation triangle. What does each letter stand for and what are the units?
2. Calculate the speed of a wave with a frequency of 10Hz and a wavelength of 10m.
3. Calculate the frequency of a wave with a velocity of 100m/s and a wavelength of 0.5km.
4. Calculate the wavelength of a wave with a frequency of 2.5kHz and a velocity of 100m/s.
Light Key Terms
Wave Equation
Label each letter with the units it’s measured in:
Transverse & Longitudinal Waves
1. Label the wavelength on both waves
2. Which wave is longitudinal?
3. Which wave is transverse?
4. Which wave’s vibrations are at 90° to the direction the wave travels?
5. Which wave’s vibrations are in the same direction as the wave is travelling?
6. 2 examples of wave 1:
7. 3 examples of wave 2: 1 2
Ripple Tank
Number
Term
clamp stand
motor
ripple tank
ruler
straight dipper
water
wires to power pack
Speed of Waves in Solids
STEP 1 –
STEP 2 –
STEP 3 –
STEP 4 –
STEP 5 -

2. CP4 – WAVES (p164-167) 1 2 Refraction Wave Equations: 3 6 7 1 2 4 5
Match the part of the refraction diagram to the correct key term:
Wave Equations:
Velocity (m/s)
Number
Term
Angle of incidence
Angle of refraction
Emergent ray
Incident ray
Normal line
Perspex block
Refracted ray
1. Label the equation triangle. What does each letter stand for and what are the units?
wavelength
(m) 3
Frequency
(Hz) 6 7 1
2. Calculate the speed of a wave with a frequency of 10Hz and a wavelength of 10m. 10 x 10 = 100m/s
3. Calculate the frequency of a wave with a velocity of 100m/s and a wavelength of 0.5km. 100 ÷ (0.5x1000) = 0.2Hz
4. Calculate the wavelength of a wave with a frequency of 2.5kHz and a velocity of 100m/s. 100 ÷ (2.5x1000) = 0.04Hz 2 4 5
Light Key Terms
Wave Equation
Label each letter with the units it’s measured in:
Transverse & Longitudinal Waves
1. Label the wavelength on both waves
2. Which wave is longitudinal? 1
3. Which wave is transverse? 2
4. Which wave’s vibrations are at 90° to the direction the wave travels? 2
5. Which wave’s vibrations are in the same direction as the wave is travelling? 1
6. 2 examples of wave 1: sound waves + P-waves
7. 3 examples of wave 2: S-waves, ripples + EM waves 1 2
wavelength
Distance (m)
wavelength
Wave speed (m/s)
Time (s)
Ripple Tank
Number
Term
clamp stand
motor
ripple tank
ruler
straight dipper
water
wires to power pack 1 3 6
Speed of Waves in Solids
STEP 1 – Record the length of the rod
STEP 2 – Set up the apparatus as shown in the diagram
STEP 3 – Tap the rod and record the peak frequency
STEP 4 – Repeat 3 times and calculate the mean peak frequency
STEP 5 – Calculate the speed by using v = f x λ 4 5 7 2