Energy Flashcards

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1
Q

Describe what energy means in science

A

The definition of energy in science means the ability or capacity to do work

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2
Q

What are the Active Forms of Energy

A
Light Energy
Sound Energy 
Electric Energy 
Heat/Thermal Energy 
Kinetic Energy
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3
Q

What are the potential forms of Energy?

A
Chemical Potential Energy 
Elastic Potential Energy 
Gravity Potential Energy 
Nuclear Potential Energy 
Magnetic Potential Energy
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4
Q

Explain Conservation of Energy

A

The law of conservation of energy state that energy can neither be created nor destroyed - only converted from one form of energy to another.

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5
Q

Relate GPE to mass and change in height

A
  • Energy is required for objects to be lifted up from the Earth’s surface against gravity.
  • Raised objects are storing gravitational potential energy
  • The GPE depends on the mass (Kg) of the objects and how high it is off the ground in metres.
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6
Q

Formula for GPE

A

GPE=mgh

m= mass
g= gravitational force
h= height
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7
Q

What is Light Energy?

A

Energy of Light

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8
Q

What is Sound Energy?

A

Energy of mechanical vibration

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9
Q

What is Electric Energy?

A

Energy in opposite electrical charges

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10
Q

What is Heat/Thermal Energy?

A

Energy of heat (particle movement)

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11
Q

What is Kinetic Energy?

A

Energy of movement

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12
Q

What is Chemical Potential Energy?

A

Energy stored in a substance

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13
Q

What is Elastic Potential Energy?

A

Energy stored in a compressed or expanded item

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14
Q

What is Gravitational Energy?

A

Energy stored in items depending on their distance from the ground

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15
Q

What is Magnetic Potential Energy?

A

Energy stored in magnets

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16
Q

Conduction heat energy

A

The transfer of heat through molecular contact, it’s most effective in gases and liquids

17
Q

Convection heat energy

A

The transfer of heat through density differences, most effective in gases and liquids