Forces and energy Flashcards

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1
Q

What is the equation for work done

A

W= F x D

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2
Q

The equation for power

A

Work done divide Time

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3
Q

Equation for elastic potential energy

A

Elastic p = 0.5 x Force x Extension

E= 0.5 x F x E

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4
Q

Define power

A

The rate of doing work

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5
Q

What happens to an object that gains energy

A

It gets faster or higher

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6
Q

Equation for spring constant

A

Force divided extension

K= F divided E

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7
Q

Define specific heat capacity

A

The measure of how hard it is to increase the temp of an object

This allows us to calculate the thermal energy

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8
Q

Equation

A

GPE= Mass x GPE x Height

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9
Q

Define spring constant

A

Is a measure of how difficult it is to stretch a spring

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10
Q

Define Kinetic energy

A

The movement energy that an object has

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11
Q

How is work done measured

A

in Newtons

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12
Q

Equation for thermal energy

A

Thermal energy = Mass x SPC x Change in temp

Q= M x C x CH in temp

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13
Q

Equation for kinetic energy

A

Kinetic = 0.5 x Mass x Velocity squared

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14
Q

Define gravitational potential energy

A

A sum of energy that a object has above the Earths surface

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15
Q

What is the equation for when the object is moving vertically

A

Mass x 10 Kg

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16
Q

What is energy conservation

A

The total amount of energy present stays the same before and after any changes.

17
Q

Define work done

A

The exact amount of how much energy is moving around