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8 Science > CHAPTER 15 > Flashcards

CHAPTER 15 Flashcards

1
Q

WHAT IS THE ENERGY OF MOTION CALLED?

A

KINETIC ENERGY

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2
Q

WHAT IS THE FORMULA USED O CALCULATE AN OBJECT’S KINETIC ENERGY?

A

KE=1/2MV2

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3
Q

WHAT IS POTENTIAL ENERGY?

A

STORED ENERGY AS A RESULT OF POSITION OF SHAPE

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4
Q

AN OBJECT’S GRAVITATIONAL POTENTIAL ENERGY DEPENDS ON ITS ______________, ITS _________, AND ITS ________________________.

A

MASS
HEIGHT
ACCELERATION DUE TO GRAVITY

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5
Q

WHAT IS ENERGY?

A

THE ABILITY TO DO WORK

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6
Q

THE POTENTIAL ENERGY OF AN OBJECT THAT IS STRETCHED OR COMPRESSED IS KNOWN AS __________________________.

A

ELASTIC POTENTIAL ENERGY

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7
Q

ENERGY STORED IN GASOLINE, COAL, AND WOOD

A

CHEMICAL ENERGY

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8
Q

THE SUM OF AN OBJECT’S POTENTIAL ENERGY AND KINETIC ENERGY, EXCLUDING ATOMIC-SCALE MOVEMENTS

A

MECHANICAL ENERGY

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9
Q

PRODUCES THE SUN’S HEAT AND LIGHT

A

NUCLEAR ENERGY

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10
Q

TRAVELS THROUGH SPACE IN THE FORM OF WAVES

A

ELECTROMAGNETIC ENERGY

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11
Q

PRODUCES LIGHTNING BOLTS

A

ELECTRICAL ENERGY

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12
Q

INCREASES AS ATOMS WITHIN AN OBJECT MOVE FASTER

A

THERMAL ENERGY

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13
Q

EXPLAIN HOW GULLS USE ENERGY CONVERSION.

A

AS THE GULL LIFTS AN OYSTER, ITS GRAVITATIONAL POTENTIAL ENERGY INCREASES
GULL WILL DROP THE OYSTER AND POTENTIAL ENERGY TURNS TO KINETIC ENERGY
OYSTER HITS A ROCK AND BREAKS SHOWING THE CONVERSION FROM KINETIC TO THERMAL KINETIC ENERGY

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14
Q

WHEN A WIND-UP TOY IS SET IN MOTION, ELASTIC POTENTIAL ENERGY THAT WAS STORED IN A COMPRESSED SPRING IS CONVERTED INTO THE ________________ OF THE TOY’S MOVING PARTS.

A

KINETIC ENERGY

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15
Q

WHAT DOES THE LAW OF CONSERVATION OF ENERGY STATE?

A

ENERGY IS NEITHER CREATED OR DESTROYED

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16
Q

A MOVING OBJECT SLOWS DOWN BECAUSE FRICTION CAUSES A CONTINUAL CONVERSION OF KINETIC ENERGY INTO _________________.

A

THERMAL ENERGY

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17
Q

AS AN OBJECT FALLS, THE GRAVITATIONAL POTENTIAL ENERGY OF THE OBJECT IS CONVERTED INTO ________________.

A

KINETIC ENERGY

18
Q

AT WHAT POINT DURING A POLE-VAULTER’S JUMP IS HIS GRAVITATIONAL POTENTIAL ENERGY THE GREATEST?

A

AT THE HIGHEST PART OF THE JUMP

19
Q

WHAT DOES EINSTEIN’S EQUATION IMPLY ABOUT MASS AND ENERGY?

A

ENERGY AND MASS ARE EQUIVALENT AND CAN BE CONVERTED INTO EACHOTHER

20
Q

WHAT DOES EINSTEIN’S EQUATION SUGGEST?

E=MC2

A

MASS AND ENERGY TOGETHER ARE CONSERVED

21
Q

WHAT ARE NONRENEWABLE RESOURCES?

A

ITEMS THAT EXIST IN LIMITED QUANTITIES AND CANNOT BE REUSED

22
Q

LIST FOUR EXAMPLES OF NONRENEWABLE RESOURCES.

A

OIL
COAL
NATURAL GAS
URANIUM

23
Q

WHAT ARE SOME ADVANTAGES AND DISADVANTAGES OF USING FOSSIL FUEL?

A

THEY ARE INEXPENSIVE AND AVAILABLE

CAUSE POLUTION

24
Q

AN ENERGY RESOURCE THAT CAN BE REPLACED IN A REASONABLY SHORT PERIOD OF TIME IS CALLED A ____________________.

A

RENEWABLE RESOURCE

25
Q

DESCRIBE ONE CONVERSION THAT TAKES PLACE DURING THE GENERATION OF HYDROELECTRIC POWER.

A

POTENTIAL-WATER BEHIND THE DAM

KINETIC- WATER RELEASED FROM THE DAM

26
Q

WATER PUMPED BELOW GROUND IS CONVERTED TO STEAM

A

GEOTHERMAL

27
Q

THE MOST LIKELY RAW MATERIAL IS HYDROGEN

A

NUCLEAR FUSION

28
Q

MIRRORS CONCENTRATE SUNLIGHT TO PRODUCE ELECTRICITY

A

SOLAR

29
Q

KINETIC ENERGY OF MOVING AIR IS CONVERTED INTO ROTATIONAL ENERGY OF A TURBINE

A

WIND

30
Q

ENERGY IS OBTAINED FROM FLOWING WATER

A

HYDROELECTRIC

31
Q

CHEMICAL ENERGY STORED IN WOOD, PEAT, AND AGRICULTURAL WASTE CAN BE CONVERTED INTO THERMAL ENERGY

A

BIOMASS

32
Q

HYDROGEN FUEL CELLS GENERATE ____________ BY COMBINING HYDROGEN WITH OXYGEN.

A

Electricity

33
Q

WHAT ARE TWO WAYS THAT ENERGY RESOURCES AN BE CONSERVED?

A

TAKE SHORTER SHOWERS

TURN THE LIGHTS OFF WHEN NOT NEEDED

34
Q

WHAT ARE THE TYPES OF RENEWABLE ENERGY?

A 
HYDROELECTRIC
SOLAR
GEOTHERMAL
WIND
BIOMASS
NUCLEAR FUSION
35
Q

WHEN AN OBJECT IS RAISED TO A HIGHER LEVEL, ITS _______________ POTENTIAL ENERGY INCREASES.

A

GRAVITATIONAL

36
Q

THE MOTION OF MICROSCOPIC PARTICLES IN A MATTER PARTLY DETERMINES THE AMOUNT OF ____________________ WITHIN IT.

A

THERMAL ENERGY

37
Q

ATOMIC FISSION QND FUSION PRODUCE __________________.

A

NUCLEAR ENERGY

38
Q

WHEN YOUR MUSCLES MOVE,__________ FROM YOUR CEREAL IS CONVERTED INTO __________

A

CHEMICAL ENERGY

KINETIC ENERGY

39
Q

PHOTOVOLTAIC CELLS CONVERT ______________ INTO ELECTRICAL ENERGY.

A

SOLAR ENERGYW

40
Q

WHEN YOU SIT AROUND A CAMPFIRE, YOU ARE ENJOYING ENERGY STORED IN A WOOD- A TYPE OF ____________

A

BIOMASS ENEGY

8 Science (11 decks)

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