Question

TRUE OR FALSE

1. Compressions are regions of low air pressure
2. Sound waves are considered electromagnetic waves
3. Rarefaction region is where the particles are close to one another
4. Sound waves cannot travel in a void space.
5. The wavelength of sound waves can be measured at the distance from one rarefaction to another adjacent comparison
6. Longitudinal waves can have either compression or rarefaction
7. Light waves are transverse waves
8. Light travels faster than sound
9. The speed of light in a certain medium is slower than its speed in a vacuum
10. The higher the frequency of light the longer its wave length

Answer 1

Answer: false, false, true, false ,false, true, true, true, true, true, false

Explanation: 1. false: compressions are regions of low air pressure

2. false: electromagnetic waves are not like sound waves because they do not need molecules to travel

3. true: because it allows light to travel through particles

4: false: because sound waves require medium to travel

5: false : the wavelength is commonly measured as the distance between any two corresponding points on adjacent wave

6. true: they produce compression and rarefaction when travelling through a medium

7. true: light waves are transverse waves because the displacement of the medium is perpendicular to the direction of propagation of waves

8. true: because light waves do not need any medium to travel but sound waves do

9. true: because there is no obstruction in vaccum for propagation of light

10.false: frequency of light is inversely proportional to wavelength

Answer 2

1) true
2) false ( longitudinal waves)
3) True
4) True ( needs a medium to propagate)
5) True
6) True
7) True
8) True
9)True
10) False ( the bigger the amplitude)