physics glossary Flashcards

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1
Q

define speed

A

the rate of change in position of an object in any direction

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2
Q

define velocity

A

the distance covered by an object in unit time

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3
Q

define distance

A

measures the length between object without regard to direction

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4
Q

define acceleration

A

the rate of change in veolcity

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5
Q

define deeceleration

A

the slowing down of an object

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6
Q

define constant velocity

A

a velocity that does not change

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7
Q

define force

A

the push and pull of an object with mass that causes teh velocity to change

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8
Q

define unbalneced force

A

the force applied in one direction is greater then the force applied in the other direction.

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9
Q

define intertia

A

the onjects tendancy to rsist change to motion

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10
Q

define newtons frist law

A

an object at rest will remain at rest until an unbalnced force is acted apon it

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11
Q

define newtons second law

A

net force=mass x acceleration

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12
Q

define newtons thrid law

A

for every action there is an equal and opposite reaction

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13
Q

define energy transfer

A

the movenment of energy from one place to another

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14
Q

define energy transformation

A

the conversion of energy from one form of energy to another

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15
Q

define kinetic energy

A

the energy tranferred to an object due to its motion

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16
Q

define potential energy

A

the energy an ibject has because of its position reletive to another onject

17
Q

define useful energy

A

the energy that goes towards a desired output

18
Q

define wasted energy

A

energy that is not usefullt tranferred or tranformed

19
Q

define energy effienicy

A

using less energy to perform the same task and same reuslt

20
Q

define total mechanical energy

A

the sum of the potential energy and kinetc energy

21
Q

define the law of conservation

A

energy can be neither created or destroyed