Waves - Revision

Pregunta 1 de 22

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Waves transfer from one place to another. Oscillations in a longitudinal wave are to the direction of energy transfer. Oscillations in a transverse wave are to the direction of energy transfer. Sound waves are , electromagnetic waves are and mechanical waves (e.g. on a slinkly spring) can be either or .

Explicación

Pregunta 2 de 22

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Fill the blanks:

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Pregunta 3 de 22

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The number of waves that pass in one second is called the wave , measured in (). The amplitude of a wave goes from the to the , while the wavelength goes from to .

Explicación

Pregunta 4 de 22

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Light of a single frequency is described as .

Explicación

Pregunta 5 de 22

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The speed of a wave can be found using the equation: = x

v = (units: )
f = (units: )
λ = (units: )

Explicación

Pregunta 6 de 22

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A radio station transmits radio waves at a frequency of 2 x 10^5 Hz. The speed of radio waves is 3.0 x 10^8 m/s. Calculate the wavelength of the radio waves.

To answer the question, you must use the formula = x .
The answer to the question is:

Explicación

Pregunta 7 de 22

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The electromagnetic spectrum is a family of waves which can all:
1) Travel at the speed of (about )
2) Travel through a (empty space - no medium required!)
3) Transfer from one place to another.

Explicación

Pregunta 8 de 22

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Fill in the blanks:

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Pregunta 9 de 22

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The higher the frequency (the the wavelength) of electromagnetic radiation, the more it transfers.
This is why rays (from radioactive material), x-rays (used in ), and radiation (from the sun) can be harmful to living tissue.

Explicación

Pregunta 10 de 22

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State the safety issues regarding the use of microwaves and x-rays:
Microwaves: can up body , damage
X-Rays: can cause , kill , cause changes

Explicación

Pregunta 11 de 22

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radiation and waves are able to penetrate your skin. Their energy can be by body tissue, which can internal organs and may damage them. radiation from the sun is absorbed by your . Too much of this can cause .

Explicación

Pregunta 12 de 22

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Fill in the blanks:

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Pregunta 13 de 22

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Describe the uses of these electromagnetic waves:
Radio Waves: r
Microwaves: s , m , h
Infra-red: r , i , o , r
X-Rays: m, a

Explicación

Pregunta 14 de 22

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If a wave source (such as from a distant galaxy, or from a passing ambulance) moves away from an observer, the observed wavelength and the frequency . This is known as the effect.

If the wave source moves towards the observer, the complete happens. The wavelength , while the frequency .

Explicación

Pregunta 15 de 22

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There is an observable increase in the ( wavelength, nearby, distant, slower, faster, towards, away from, greater, smaller, red-shift, blue-shift, frequency ) of light from most ( distant, nearby, slower, faster, towards, away from, greater, smaller, red-shift, blue-shift, wavelength, frequency ) galaxies. The further away the galaxies are, the ( greater, wavelength, nearby, distant, slower, faster, towards, away from, smaller, red-shift, blue-shift, frequency ) the observed increase in ( wavelength, nearby, distant, slower, faster, towards, away from, greater, smaller, red-shift, blue-shift, frequency ), and so the ( faster, slower, nearby, distant, towards, away from, greater, smaller, red-shift, blue-shift, wavelength, frequency ) they are moving away from us. This effect is called ( red-shift, blue-shift, nearby, distant, slower, faster, towards, away from, greater, smaller, wavelength, frequency ) because the wavelengths are stretched towards the red end of the spectrum.

Explicación

Pregunta 16 de 22

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Name four types of mechanical waves:
w
on a s
s
e

w are t
on a s can be l or t
s are l
e can be l (p wave) or t (e wave)

Explicación

Pregunta 17 de 22

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Fill in the blanks:

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Pregunta 18 de 22

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Sound is caused by which make pressure waves move through a substance (such as air).

In a sound wave, particles oscillate to the direction of the wave motion.

A sound wave is therefore a type of wave.

Explicación

Pregunta 19 de 22

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The hearing frequency of an average human is Hz - .

Explicación

Pregunta 20 de 22

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In a sound wave:
Pitch depends on the wave's .
Loudness depends on the wave's .
Echoes are caused when the wave off an object.

Explicación

Pregunta 21 de 22

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Sound waves need a (a material) to travel through (they cannot travel through a ).

Describe a simple experiment to determine the speed of sound in air:
• Stand 100m away from a brick
• your hands
• Use a to measure the time taken between you clapping your hands and the returning to you
• the experiment at least times
• Use the formula = / to calculate the

Explicación

Pregunta 22 de 22

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What are some typical values of the speed of sound in:
Gases: m/s
Liquids: m/s
Solids: m/s

Explicación

	Creado por Seth-Riley Adams hace alrededor de 6 años

Test sobre Waves - Revision, creado por Seth-Riley Adams el 13/03/2018.

Waves - Revision

Pregunta 1 de 22

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Explicación

Pregunta 2 de 22

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Fill the blanks:

Explicación

Pregunta 3 de 22

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The number of waves that pass in one second is called the wave , measured in (). The amplitude of a wave goes from the to the , while the wavelength goes from to .

Explicación

Pregunta 4 de 22

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Light of a single frequency is described as .

Explicación

Pregunta 5 de 22

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The speed of a wave can be found using the equation: = x v = (units: ) f = (units: ) λ = (units: )

Explicación

Pregunta 6 de 22

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A radio station transmits radio waves at a frequency of 2 x 10^5 Hz. The speed of radio waves is 3.0 x 10^8 m/s. Calculate the wavelength of the radio waves. To answer the question, you must use the formula = x . The answer to the question is:

Explicación

Pregunta 7 de 22

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The electromagnetic spectrum is a family of waves which can all: 1) Travel at the speed of (about ) 2) Travel through a (empty space - no medium required!) 3) Transfer from one place to another.

Explicación

Pregunta 8 de 22

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Fill in the blanks:

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Pregunta 9 de 22

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The higher the frequency (the the wavelength) of electromagnetic radiation, the more it transfers. This is why rays (from radioactive material), x-rays (used in ), and radiation (from the sun) can be harmful to living tissue.

Explicación

Pregunta 10 de 22

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State the safety issues regarding the use of microwaves and x-rays: Microwaves: can up body , damage X-Rays: can cause , kill , cause changes

Explicación

Pregunta 11 de 22

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radiation and waves are able to penetrate your skin. Their energy can be by body tissue, which can internal organs and may damage them. radiation from the sun is absorbed by your . Too much of this can cause .

Explicación

Pregunta 12 de 22

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Fill in the blanks:

Explicación

Pregunta 13 de 22

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Describe the uses of these electromagnetic waves: Radio Waves: r Microwaves: s , m , h Infra-red: r , i , o , r X-Rays: m, a

Explicación

Pregunta 14 de 22

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If a wave source (such as from a distant galaxy, or from a passing ambulance) moves away from an observer, the observed wavelength and the frequency . This is known as the effect. If the wave source moves towards the observer, the complete happens. The wavelength , while the frequency .

Explicación

Pregunta 15 de 22

Selecciona la opción correcta de los menús desplegables para completar el texto.

Explicación

Pregunta 16 de 22

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Name four types of mechanical waves: w on a s s e w are t on a s can be l or t s are l e can be l (p wave) or t (e wave)

Explicación

Pregunta 17 de 22

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Fill in the blanks:

Explicación

Pregunta 18 de 22

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Sound is caused by which make pressure waves move through a substance (such as air). In a sound wave, particles oscillate to the direction of the wave motion. A sound wave is therefore a type of wave.

Explicación

Pregunta 19 de 22

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The hearing frequency of an average human is Hz - .

Explicación

Pregunta 20 de 22

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In a sound wave: Pitch depends on the wave's . Loudness depends on the wave's . Echoes are caused when the wave off an object.

Explicación

The speed of a wave can be found using the equation: = x

v = (units: )
f = (units: )
λ = (units: )

A radio station transmits radio waves at a frequency of 2 x 10^5 Hz. The speed of radio waves is 3.0 x 10^8 m/s. Calculate the wavelength of the radio waves.

To answer the question, you must use the formula = x .
The answer to the question is:

The electromagnetic spectrum is a family of waves which can all:
1) Travel at the speed of (about )
2) Travel through a (empty space - no medium required!)
3) Transfer from one place to another.

The higher the frequency (the the wavelength) of electromagnetic radiation, the more it transfers.
This is why rays (from radioactive material), x-rays (used in ), and radiation (from the sun) can be harmful to living tissue.

State the safety issues regarding the use of microwaves and x-rays:
Microwaves: can up body , damage
X-Rays: can cause , kill , cause changes

Describe the uses of these electromagnetic waves:
Radio Waves: r
Microwaves: s , m , h
Infra-red: r , i , o , r
X-Rays: m, a

If a wave source (such as from a distant galaxy, or from a passing ambulance) moves away from an observer, the observed wavelength and the frequency . This is known as the effect.

If the wave source moves towards the observer, the complete happens. The wavelength , while the frequency .

Name four types of mechanical waves:
w
on a s
s
e

w are t
on a s can be l or t
s are l
e can be l (p wave) or t (e wave)

Sound is caused by which make pressure waves move through a substance (such as air).

In a sound wave, particles oscillate to the direction of the wave motion.

A sound wave is therefore a type of wave.

In a sound wave:
Pitch depends on the wave's .
Loudness depends on the wave's .
Echoes are caused when the wave off an object.

What are some typical values of the speed of sound in:
Gases: m/s
Liquids: m/s
Solids: m/s