# Homework - Using waves

Homework - Using waves & the Doppler effect
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Slide 1: Tekstslide

In deze les zitten 28 slides, met interactieve quizzen en tekstslides.

## Onderdelen in deze les

Homework - Using waves & the Doppler effect

#### Slide 2 -Tekstslide

How long does it take light to travel from the Sun to Earth?
A
4.2 light years
B
Just over 8 minutes
C
150 million kilometers
D
93 million miles

#### Slide 3 -Quizvraag

What is the distance to Proxima Centauri in light years?
A
150 million kilometers
B
93 million miles
C
4.2 light years
D
Just over 8 minutes

#### Slide 4 -Quizvraag

What is a light year?
A
93 million miles
B
4.2 light years
C
The distance light travels in a year
D
Just over 8 minutes

#### Slide 5 -Quizvraag

Compared to the distance from the Sun to Earth, how does the distance to other stars or galaxies compare?
A
Larger
B
4.2 light years
C
150 million kilometers
D
Just over 8 minutes

#### Slide 6 -Quizvraag

How long does it take light to reach us from the next nearest star, Proxima Centauri?
A
Over four years
B
150 million kilometers
C
Just over 8 minutes
D
93 million miles

#### Slide 8 -Tekstslide

What type of wave is light?
A
Sound wave
B
Transverse wave
C
Tidal wave
D
Longitudinal wave

#### Slide 9 -Quizvraag

What is the speed of light?
A
2.5 x 10^8 m/s
B
5.5 x 10^8 m/s
C
3.2 x 10^8 m/s
D
4.0 x 10^8 m/s

#### Slide 10 -Quizvraag

What can telescopes on satellites provide?
A
X-ray detection
B
Ultraviolet photos
C
Clearer images
D
Infrared vision

#### Slide 11 -Quizvraag

What can travel through a vacuum?
A
Seismic waves
B
Light waves
C
Water waves
D
Sound waves

#### Slide 12 -Quizvraag

What has changed our understanding of the universe?
A
Discovery of electricity
B
Study of fossils
C
Invention of telescopes
D
Development of cars

#### Slide 13 -Quizvraag

What do telescopes help us observe?
A
Underwater creatures
B
Radio waves
C
Magnetic fields
D
EM radiation from stars and planets

#### Slide 14 -Quizvraag

Where are telescopes like the Hubble located?
A
Underwater
B
Mountains
C
On satellites
D
Deserts

#### Slide 16 -Tekstslide

What type of waves are sound waves?
A
Surface waves
B
Transverse waves
C
Electromagnetic waves
D
Longitudinal waves

#### Slide 17 -Quizvraag

How does the wavelength of a sound wave relate to its frequency?
A
Longer wavelength results in lower frequency
B
Longer wavelength results in higher frequency
C
Shorter wavelength results in higher frequency
D
Shorter wavelength results in lower frequency

#### Slide 18 -Quizvraag

What effect does a higher frequency sound wave have on pitch?
A
Higher frequency sound wave results in lower pitch
B
Lower frequency sound wave results in higher pitch
C
Higher frequency sound wave results in higher pitch
D
Lower frequency sound wave results in lower pitch

#### Slide 19 -Quizvraag

What is necessary for sound waves to travel through?
A
Sound waves need a solid to travel through
B
Sound waves are vacuum traveling
C
Sound waves need a medium to travel through
D
Sound waves need a gas to travel through

#### Slide 20 -Quizvraag

What determines the frequency of a sound wave?
A
The speed of the wave
B
The direction of the wave
C
The distance between peaks
D
The amplitude of the wave

#### Slide 22 -Tekstslide

The Doppler effect
"Yes its the apparent change in the frequency of a wave caused by relative motion between the source of the wave and the observer".

#### Slide 23 -Tekstslide

What is the Doppler effect?
A
The change in wavelength of waves due to motion.
B
The change in frequency of waves due to motion.
C
The change in amplitude of waves due to motion.
D
The change in speed of waves due to motion.

#### Slide 24 -Quizvraag

When a source is moving towards an observer, what happens to the frequency of waves?
A
It remains constant.
B
It decreases.
C
It increases.
D
It disappears.

#### Slide 25 -Quizvraag

What type of waves are subject to the Doppler effect?
A
Only sound waves.
B
All waves (electromagnetic, sound, water).
C
Only ocean waves.
D
Only light waves.

#### Slide 26 -Quizvraag

In the Doppler effect, if a source is moving away from an observer, what happens to the frequency of waves?
A
It remains constant.
B
It increases.
C
It disappears.
D
It decreases.

#### Slide 27 -Quizvraag

How is the Doppler effect noticeable in everyday life?
A
When a vehicle with a siren approaches and moves away from a stationary observer.
B
When a vehicle with a silent engine approaches.
C
When a vehicle with no movement is observed.
D
When a vehicle with no sound approaches.