Physical Science for ProgressPrentice-Hall, 1970 - 626 σελίδες |
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Σελίδα 315
... reflected and some absorbed . No rays pass through opaque materials ; some are reflected and many absorbed . ACTIVITY Hold a mirror in the beam of a flashlight . Result ? Mirror FIGURE 8-13 A shady place is a shadow . REFLECTION Reflection ...
... reflected and some absorbed . No rays pass through opaque materials ; some are reflected and many absorbed . ACTIVITY Hold a mirror in the beam of a flashlight . Result ? Mirror FIGURE 8-13 A shady place is a shadow . REFLECTION Reflection ...
Σελίδα 317
... reflected . On these rough surfaces the reflection is very irregular , however , the angle of incidence still equals the angle of reflection for each ray . It happens that each ray is reflected in a different direction . When light ...
... reflected . On these rough surfaces the reflection is very irregular , however , the angle of incidence still equals the angle of reflection for each ray . It happens that each ray is reflected in a different direction . When light ...
Σελίδα 334
... reflected . This causes the grass to look green . All the colors in the white light are absorbed except green . Lens ... reflected . The mixture ap- pears black . Black is the absence of color . White is the presence of all colors . When ...
... reflected . This causes the grass to look green . All the colors in the white light are absorbed except green . Lens ... reflected . The mixture ap- pears black . Black is the absence of color . White is the presence of all colors . When ...
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UNIT | 1 |
UNIT | 49 |
distributors of the John Frankenheimer film Grand Prix A General Electric Company 337 bottom rightGeneral Electric | 92 |
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acid acting ACTIVITY added amount atoms beam become body called carbon causes cell charges chemical chemical change circuit color combining compounds connected contains copper determined direction distance earth effort electrical electrical charges electrons elements energy engine equal experiment explain facts feet FIGURE flow force fuel gain gives glass grams happens heat hour hydrogen inch increases ions iron kinds lamp laser layer length light liquid magnet mass materials matter means measure metal miles mirror molecules moon motion move nature needed object oxygen particles piece plane plate pole position pounds pressure produced push rays reflected resistance Result rock scientists shell side sodium solution sound space speed spring stars Study surface temperature Terms theory travels tube turns units waves weight wire