Physical Science Powerpoint

7/24/2019 Physical Science Powerpoint

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Physical ScienceTeaching Notes

Leigh Crosson2011


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Physical Science

OverviePro!erties o" #atterChanges in #atter$or%s o" &nergy&nergy Trans"ers$orce and #otion


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Pro!erties o"

#atter'll o()ects and s*(stances in the orld are %adeo" %atter+ #atter has to "*nda%ental !ro!erties,%atter ta-es *! s!ace and %atter has %ass+

O()ects and s*(stances can (e classi.ed (y their!hysical and che%ical !ro!erties+

#ass is the a%o*nt o" %atter /or st* in ano()ect+ 3eight4 on the other hand4 is the %eas*reo" "orce o" attraction /gravitational "orce (eteenan o()ect and &arth+


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Changes in #atter

#atter can *ndergo a variety o"changes+

#atter can (e changed

!hysically or che%ically+


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$or%s o" &nergy

'+ &nergy is involved in all!hysical !rocesses and is a

*ni"ying conce!t in %any areaso" science+

B+ &nergy e5ists in %any "or%sand has the a(ility to do or-or ca*se a change+


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nergy rans erand

Trans"or%ations'+ 3aves involve a trans"er o"

energy itho*t a trans"er o" %atter+B+ 3ater and so*nd aves trans"erenergy thro*gh a %aterial+

C+ Light aves can travel thro*gh avac**% and thro*gh %atter+


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#otion o" O()ects

'+ #otion is a -ey characteristic

o" all %atter that can (eo(served4 descri(ed4 and%eas*red+

B+ The %otion o" o()ects can (echanged (y "orces+


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$orces and

Changes in #otion'+ It ta-es energy to change the%otion o" o()ects+

B+ &nergy change is *nderstood inter%s o" "orces66!*shes or !*lls+

So%e "orces act thro*gh !hysicalcontact4 hile others act at adistance+


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Investigations vs+

&5!eri%ents'n investigation is a !roced*re

that is carried o*t to gatherdata a(o*t an o()ect or event+

'n e5!eri%ent is a !roced*re

yo* carry o*t *nder controlledconditions to test a hy!othesis+


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Scienti.c &5!eri%ent


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Session 2 6 #atter

#atter 6 ta-es *! s!ace and has

%ass#eas*ring #atter

States o" #atter

Changes in #atter


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#eas*ring #atter

#ass 6 the a%o*nt o" %atter inan o()ect /(alance

7ol*%e 6 a%o*nt o" s!ace ano()ect ta-es *!

8ensity 6 %eas*re o" %ass !er*nit o" vol*%e /#97


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Changes in #atter

Physical Changes 6 *s*ally achange o" sha!e4 si:e4 or state+

No ne %atter4 no ne!ro!erties+

Che%ical Changes 6 Ne

!ro!erties4 o"ten a change in coloror te%!erat*re+ O"ten !rod*ces ane gas or solid+


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Session ; 6 &nergy

&nergy 6 The a(ility to ca*se a

change$or%s o" &nergy

Trans"or%ation and Changes

&nergy4 $orce4 and #otion


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$or%s o" &nergy

Potential &nergy


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Potential &nergy 6

Stored &nergy

Che%ical &nergy

&lastic Potential &nergy

=ravitational Potential&nergy


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Che%ical &nergy

he n*trients in the (anana are

che%icals hich are storedIn the "ood+

The che%icals in the (attery that !oersthe cloc- are an e5a%!le o" stored energ


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&lastic Potential

&nergy

The arro has !otential energyd*e to the elastic nat*re o" the (o+


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=ravitational

Potential &nergy

The coaster car has !otential

energy d*e to its height a(ove the gro*nd+


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ne c nergy 6The &nergy o"

#otion&lectrical &nergy

Light &nergy

>eat &nergy

So*nd &nergy

#otion &nergy


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Trans"er o" &nergy

&nergy cannot (e created nordestroyed+

&nergy can change "ro% one"or% to another+

The so*rce o" all energy onearth is the s*n+


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&5a%!les o"

&nergy Trans"ers&lectrical to so*nd and light

&lectrical to heat

&lecrical to %echanical

Solar to electrical


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Session ? $orces

and #otion

@ Balanced and An(alanced$orces

@ Netons Las o" #otion


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$orces

$orce 6 a !*sh or a !*ll

Balanced vs+ An(alanced "orces

&ver !resent "orces 6 gravity4"riction4 %agnetis%

'!!lied "orces


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Balanced $orces 6 The "orces aree*al and o!!osite in direction+

There is no %otion+


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An(alanced $orces 6 Ca*ses #otion

o on e res*


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o on 6 e res*o" An(alanced

$orcesNetons 1st La 6 La o"Inertia

Netons 2nd La 6 La o"#o%ent*%

Netons ;rd La 6 La o"'ction 9 Deaction


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Netons Second La o" #otion

'n o()ect ith %ore %ass illre*ire %ore "orce to (egin its

%otion and9or to sto! the %otion+


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Netons Third La o" #otion

very action there is an e*al and o!!osite reactio


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Deso*rces

The >andy Science 'nserBoo-

Physics "or Children

The Science Eello Pages "or

St*dents and Teachers

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