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DAS CCEA GCSE Physics 2 > P2.1 Waves > Flashcards

P2.1 Waves Flashcards

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1
Q

What are all waves produced as a result of?

A

Vibrations

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2
Q

What type of wave is one in which the particles vibrate parallel to the direction in which the wave is travelling?

A

Longitudinal Wave

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3
Q

What are 4 examples of a longitudinal wave?

A

Sound Waves
Ultrasound waves
Slinky spring waves
P-type earthquake waves

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4
Q

What are places where particles in a longitudinal wave bunch together?

A

Compressions

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5
Q

What are places where the coils or particles in a longitudinal wave are furtherest apart?

A

Rarefactions

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6
Q

What type of wave is one in which the particles vibrate perpendicular to the direction in which the wave is travelling?

A

Transverse Wave

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7
Q

What is the term for the number of complete waves passing a fixed point in a second?

A

Frequency

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8
Q

What are the 4 examples of transverse waves?

A

Water Waves
Slinky spring waves
Waves on Strings + Ropes
Electromagnetic Waves

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9
Q

What is the term given to describe the distance between two consecutive crests or troughs of a wave?

A

Wave length

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10
Q

What is the term given for the greatest displacement of the wave from its undisturbed position?

A

Amplitude

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11
Q

What is the equation for wave speed?

A

Frequency x Wave Length

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12
Q

What is frequency measured in?

A

Hz

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13
Q

What are the three units that wavelength can be measured in?

A

Cm
M
Km

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14
Q

What are the three units that speed is often measured in?

A

Cm/s
M/s
Km/s

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15
Q

In a wave graph that shows displacement and time, what can you calculate and what is the formula?

A

Frequency
Formula is Numb Of Waves divided by total time

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16
Q

In a wave graph that shows displacement and distance, what can you calculate and what is the formula?

A

Wave length
Formula is Distance divided by number of waves

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17
Q

What do all waves transfer?

A

Energy

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18
Q

In a wave, what does not move?

A

Matter

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19
Q

What is another word that describes vibration?

A

Oscillation (oscillate)

20
Q

What are the three things electro-magnetic waves can do? (2 are Travel, 1 Is type)

A

Travel in a vacuum
Travel at the same speed in a vacuum
Are transverse waves

21
Q

What can electro-magnetic waves carry?

A

Energy

22
Q

What are the two things that can happen to electro-magnetic waves?

A

Reflected and Refracted

23
Q

What is the speed of a vacuum?

A

300 million m/s

24
Q

What is the audible sound range for humans in frequency?

A

20 Hz to 20,000 Hz

25
Q

What are the 7 types of Electromagnetic waves?

A

Gamma
X-Ray
Ultraviolet
Visible
Infrared
Micro-Waves
Radio Waves

26
Q

What side of the electromagnetic spectrum is most dangerous?

A

Gamma Side

27
Q

What is the rhyme used to remember types of electromagnetic waves?

A

Grannys Xbox Uses Volts In My Room

28
Q

What can Gamma rays damage and what does this lead to?

A

Damages Cells which leads to cancer

29
Q

What do X-Rays damage and what does this lead to?

A

Damages cells which leads to cancer

30
Q

What type of cells can ultraviolet light damage?

A

Skin Cells

31
Q

What organ can visible light cause damage to?

A

The Eyes

32
Q

Infrared light is felt as heat, what does this often cause?

A

Burns

33
Q

What do micro-waves cause heating of?

A

Internal heating of body tissues

34
Q

What can large doses of radio waves lead to?

A

Cancer

35
Q

What is reflected sound and ultrasound commonly called?

A

An echo

36
Q

In terms of the use of pregnancy, what can ultrasound be used to measure the diameter of?

A

A babies head

37
Q

What does the term SONAR stand for?

A

Sound Navigation And Ranging

38
Q

What are the 2 classifications (types) of waves?

A

Transverse and Longitudinal

39
Q

What is the typical wave length of a gamma ray? (nano-metre)

A

0.01 NM

40
Q

What is the typical wave length of x-rays? (NM)

A

0.1NM

41
Q

What is the typical wave length of ultraviolet light? (NM)

A

10NM

42
Q

What is the typical wave length of visible light? (NM)

A

500NM

43
Q

What is the typical wave length of infrared light? (MM)

A

0.01MM

44
Q

What is the typical wave length of micro-waves? (CM)

A

3cm

45
Q

In standard form, what is the length of a nano-metre? (nm)

A

1x10^-9

46
Q

What is meant by the term “ultrasound”?

A

A sound with a frequency greater than 20,000HZ

DAS CCEA GCSE Physics 2 (6 decks)

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