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University of Success School > Energy (DK findout) > Flashcards

Energy (DK findout) Flashcards

1
Q

The visible and invisible spectrum of light is collectively known as

A

The electromagnetic spectrum

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2
Q

Can sound travel through outer space

A

No. As there are no air particles for it to travel through

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3
Q

The speed of sound at 340. Enters per second is known as

A

MACH 1

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4
Q

When a gas changes to liquid it is called

A

Condensation

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5
Q

Some animals use chemical energy to create light, this phenomenon is known as

A

Bioluminescence

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6
Q

When a liquid or gas is heated up it expands and moves upwards, this is known as

A

Convection

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7
Q

What energy changes take place when KEIARA Runs

A

Keiara’s POTENTIAL CHEMICAL ENERGY which is stored in the muscles is changed to KINETIC ENERGY

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8
Q

The freezing point of water is

A

0 degrees Celsius

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9
Q

When a gas changes into solid it is called

A

Deposition

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10
Q

Do raindrops act as small prisms

A

Yes

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11
Q

If we took all the energy from an object, it’s particles wouldn’t move and the temperature of this object would be

A

-273 degrees Celsius also known as absolute zero

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12
Q

In the sun two hydrogen join together to form

A

Helium

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13
Q

Very very low pitched sounds are known as

A

Infrasounds

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14
Q

What can happen if the Giant loops on the surface of the sun break away

A

They release high energy matter into space which can interrupt radio and television broadcast on earth

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15
Q

Sound travels through solids liquids and gases in the form of

A

Waves

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16
Q

What is LAW OF CONSERVATION OF ENERGY

A

Energy cannot be created or destroyed, it just changes from one type of energy to another

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17
Q

The earth is made of three layers

A

Core Mantle Crust

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18
Q

Give an example of kinetic energy being passed between two objects

A

When you kick a ball the kinetic energy from your foot is passed on to the ball, which moves the ball

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19
Q

What are the three different ways that Heat Travels

A

Conduction Convection Radiation

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20
Q

Can energy be destroyed

A

No

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21
Q

Give two examples of organisms that use chemical reactions in their bodies to produce light

A

Fireflies Algae

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22
Q

What is a Prism

A

It is a triangular shaped block of glass

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23
Q

The centre of an atom is called as the

A

Nucleus

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24
Q

Very very high pitched sounds are known as

A

Ultrasound

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25
Q

The particles in a solid are in fixed positions, they vibrate but they do not move, is this true

A

Yes

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26
Q

Most of the kinetic energy ends as

A

Heat energy

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27
Q

Give an example of elastic potential energy

A

A bowstring that is pulled back

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28
Q

What is kinetic energy

A

Anything that is moving in the universe has kinetic energy

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29
Q

Name the nine types of energy

A

Kinetic energy Potential energy Heat energy Light energy Magnetic energy Sound energy Electrical energy Chemical energy Nuclear energy

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30
Q

The light that we can see is called the..

A

Visible spectrum

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31
Q

Why do we get the SONIC BOOM

A

Because the aircraft catches up with its own sound waves squashing them together

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32
Q

How far is the sun from the earth

A

149.6 million kms away

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33
Q

Can energy change from one form to another

A

Yes

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34
Q

The faster the vibration of a sound wave, the pitch of a sound wave is

A

Higher

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35
Q

The atoms are made of even tinier particles, name them

A

Positively charged…PROTONS Negatively charged..ELECTRONS No charge..NEUTRONS

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36
Q

What is ENERGY

A

It is the ability of a physical system to do work

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37
Q

How does Heat travel

A

Heat always travels from Hot to cold

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38
Q

Temperature is measured as degree Celsius or degrees Fahrenheit, how is sound measured

A

Decibels

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39
Q

Particles of a gas move quickly away from each other in all directions, filling the space they are in, is this true

A

Yes

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40
Q

We usually measure temperature as

A

Degrees Celsius Degrees Fahrenheit

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41
Q

What are the three different ways that Heat Travels

A

Conduction Convection Radiation

42
Q

The light we cannot see is called the…

A

Invisible spectrum

43
Q

Give example of an animal that splits light using their bodies as a PRISM

A

CTENOPHORES

44
Q

What is the speed of sound through air

A
  1. Meters per second
45
Q

The fastest land animal is the

A

Cheetah

46
Q

Do all moving objects have energy

A

Yes

47
Q

Objects that block light completely are described as

A

Opaque objects

48
Q

Do hot things have more energy than cold things

A

Yes

49
Q

The boiling point of water is

A

100 degrees Celsius

50
Q

Another name for kinetic energy

A

Movement energy

51
Q

The temperature at the surface of the sun is

A

5500 million c

52
Q

What is INFRASOUND

A

Infrasounds are too low for humans to hear

53
Q

Give two types of Potential energy

A

Elastic Potential Energy Gravitational Potential Energy

54
Q

When heat travels through an object or between objects when they are in contact, this is known as

A

Conduction

55
Q

Does light travel in a straight line

A

Yes

56
Q

When two hydrogen atoms in the sun join together, it releases a lot of energy, this process is called

A

Nuclear Fusion

57
Q

What is the relationship between force and energy

A

Force changes one form of energy to another

58
Q

How do elephants communicate with each other

A

Through INFRASOUNDS

59
Q

An example of solid water is

A

Ice

60
Q

When a liquid changes into gas it is called

A

Evaporation

61
Q

When heat travels through an object or between objects when they are in contact, this is known as

A

Conduction

62
Q

CTENOPHORES are also known as

A

Comb jellies

63
Q

The sun is mostly made up of which gas

A

Hydrogen Gas

64
Q

The suns super hot surface can form huge loops of gas, called the

A

Giant Loops

65
Q

When a liquid changes into solid it is called

A

Solidification or Freezing

66
Q

Can kinetic energy be passed between two objects

A

Yes

67
Q

What created all the energy in the universe

A

A massive explosion 13.8 billion years ago made all the energy that exists in the universe today

68
Q

Very very high pitched sounds are known as

A

Ultrasound

69
Q

Hot things produce invisible rays called

A

Infra red radiation

70
Q

The temperature at the core of the sun is

A

15 million c

71
Q

Can some animals use their bodies like a PRISM and split light

A

Yes

72
Q

Give an example of a FORCE changing one form of energy to another

A

When a pencil is dropped from a height ( POTENTIAL ENERGY), the gravity (FORCE) changes the potential energy to kinetic energy

73
Q

Give an example of chemical energy changing to movement energy

A

We eat plants ( CHEMICAL ENERGY) which is then stored in our bodies which later helps us run, walk (MOVEMENT ENERGY)

74
Q

All of matter is made of tiny invisible particles called

A

Atoms

75
Q

How can we measure temperature

A

Using a thermometer

76
Q

When is sound created

A

Sound is created when something vibrates

77
Q

Can sound travel through solids, liquids and gases

A

Yes

78
Q

The faster Keiara Proenca runs, does keiaras kinetic energy increase or decrease

A

Increase

79
Q

If sounds travels faster than MACH 1 it is known as

A

Supersonic sound

80
Q

What are two properties of a liquid

A

It flows It takes the shape of a container

81
Q

Give an example of kinetic energy ending as heat energy

A

Rubbing your hands together

82
Q

What is SONIC BOOM

A

When a aircraft travels at the speed of sound, it creates a big noise called SONIC BOOM

83
Q

Why are CTENOPHORES also known as comb jellies

A

Because they split light with their hairy comb like fins

84
Q

When a solid changes into liquid it is called

A

Liquefaction

85
Q

The centre of the atom, known as the. Ucleus is made of two particles, name them

A

Protons Neutrons

86
Q

White light can be separated into different colours by using a

A

Prism

87
Q

Who discovered the absolute zero temperature

A

Lord Kelvin

88
Q

Name the invisible spectrum of light

A

Ultraviolet rays X rays Gamma rays Infrared rays Microwaves Radio waves

89
Q

The temperature at which a liquid changes into gas is called

A

Boiling point

90
Q

Give an example of light energy converting to chemical energy

A

Plants use sunlight ( LIGHT ENERGY) to make food (CHEMICAL ENERGY) which is stored in the leaves

91
Q

The temperature at which a solid changes into a liquid is called

A

Melting point

92
Q

On what does the temperature of an object depend

A

It depends on how the particles that make up the object are moving

93
Q

Very very low pitched sounds are known as

A

Infrasounds

94
Q

Water in a gas form is known as

A

Water vapour

95
Q

What is temperature

A

It is a measure of how hot or cold a thing is

96
Q

Particles in a liquid tend to move past each other, is this true

A

Yes

97
Q

What is potential energy

A

Any type of energy that is stored and ready to be used is called potential energy

98
Q

The bigger the vibration of a sound wave , the volume of sound…

A

Increases

99
Q

Why does an ice cream feel cold in our mouth

A

Because heat energy leaves our mouth and travels to the ice cream

100
Q

What is a VAPOUR CONE

A

When an aircraft travels at the speed of sound it creates a cone shaped cloud called VAPOUR CONE

101
Q

The biggest source of energy on earth is

A

The sun

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