Intro to Energy Flashcards

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1
Q

the ability to move or change matter

A

energy

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2
Q

the ability to do work

A

energy

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3
Q

using force to move an object over a distance

A

work

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4
Q

causes energy to be transferred from one object to another

A

work

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5
Q

SI unit for energy

A

joule

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6
Q

the amount of energy needed to apply a force of 1 newton over a distance of 1 meter

A

joule

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7
Q

energy of moving matter

A

kinetic

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8
Q

energy that is stored in matter

A

potential

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9
Q

because electrical energy involves the streaming of electrons it is a form of

A

kinetic energy

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10
Q

because thermal energy involves the vibration of molecules and atoms it is a form of

A

kinetic energy

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11
Q

because sound energy involves the wavelike movement of molecules and atoms it is a form of

A

kinetic energy

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12
Q

because chemical energy involves holding energy in the bonds between atoms that make up molecules it is a form of

A

potential energy

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13
Q

because nuclear energy involves holding energy in the bonds between protons and neutrons in the nucleus of an atom it is a form of

A

potential energy

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14
Q

another name for the joule

A

newton meter

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15
Q

type of energy that does work

A

kinetic

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16
Q

the amount of kinetic energy in a moving object depends on the object’s

A

mass and velocity

17
Q

1/2 * mass * velocity squared =

A

kinetic energy

18
Q

formula for kinetic energy is

A

1/2 * mass * velocity squared

19
Q

if the mass of an object doubles its kinetic energy will increase by a factor of

A

2

20
Q

if the velocity of an object doubles its kinetic energy will increase by a factor of

A

4

21
Q

which has more effect on an object’s kinetic energy? mass or velocity?

A

velocity

22
Q

in the formula for kinetic energy, kinetic energy is measured in

A

joules

23
Q

in the formula for kinetic energy, mass is measured in

A

kilograms

24
Q

in the formula for kinetic energy, velocity is measured in

A

meters per second

25
Q

the type of energy an object has because of its position

A

gravitational potential energy

26
Q

weight * distance =

A

gravitational potential energy

27
Q

the formula for gravitational potential energy =

A

weight * distance

28
Q

weight =

A

mass * acceleration due to gravity

29
Q

acceleration due to gravity =

A

9.8 m/s/s

30
Q

in the formula for weight, mass is measured in

A

kilograms

31
Q

in the formula for weight, acceleration due to gravity is measured in

A

meters per second per second

32
Q

in the formula for gravitational potential energy, weight is measured in

A

newtons

33
Q

in the formula for gravitational potential energy, height is measured in

A

meters

34
Q

the type of energy an object has due to its shape

A

elastic potential energy

35
Q

the sum of kinetic and gravitational or elastic potential energy of an object

A

mechanical energy

36
Q

mechanical energy is the sum of

A

kinetic and gravitational or elastic potential energy of an object

37
Q

elastic potential energy results when an elastic object is

A

stretched or compressed