Work, Energy & Power Flashcards

1
Q

What is the SI unit for energy

A

Joules (J)

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2
Q

Energy can be
expressed more
specifically by using
the term _______.

A

WORK(W)

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3
Q

3 types of Formula for work

A

W = FxcosΞΈ
W=β–²KE
W= Fd

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4
Q

Formula for area

A

A = Base x Height

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5
Q

Formula for power

A

P = W/Ξ”t
P = Fv = W/t = mgh/t

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6
Q

________ is the physical quantity that enables a person or an object to do work.

A

Energy

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7
Q

_____________, which is the energy possessed by an object due to its position or due to its motion.

A

Mechanical energy

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8
Q

It is an energy in motion

A

Kinetic energy

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9
Q

It is a stored energy

A

Potential energy

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10
Q

Formula for Kinetic Energy

A

KE = 1/2 π‘šπ‘£ ^2

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11
Q

Formula for β–²KE

A

β–²KE= 1/2 π‘šπ‘£π‘“^2 βˆ’1/2 π‘šπ‘£π‘œ^2

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12
Q

Formula for force

A

F=ma

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13
Q

Formula for Vf^2

A

𝑣𝑓^2 = π‘£π‘œ^2 + 2π‘Žd

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14
Q

It is the energy stored in an object due to the Earth’s gravity

A

Gravitational Potential Energy

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15
Q

It is the energy stored in an object due to its deformed state.

A

Elastic Potential Energy

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16
Q

2 Types of Potential energy

A

Gravitational Potential Energy
Elastic Potential Energy

17
Q

Formula for Gravitational Potential Energy

A

PEg = mgh

18
Q

Formula for Elastic Potential Energy according to hooke’s law

A

Fs=kx

19
Q

SI unit for k in Elastic Potential Energy

A

N/m

20
Q

SI unit for x in Elastic Potential Energy

A

m

21
Q

The other formula for Elastic Potential Energy

A

PEs = 1/2 π‘˜π‘₯^2

22
Q

Formula for acceleration

A

F/m