Physical Science for ProgressPrentice-Hall, 1970 - 626 σελίδες |
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Σελίδα 53
... length of the string ? 4. The distance the bob swings ? Bob → FIGURE 2-5 A pendulum . 71 Length of string Test each of the factors separately . These statements are your hypotheses . By means of experiments you are going to test the ...
... length of the string ? 4. The distance the bob swings ? Bob → FIGURE 2-5 A pendulum . 71 Length of string Test each of the factors separately . These statements are your hypotheses . By means of experiments you are going to test the ...
Σελίδα 325
... length . Some convex lenses have a short focal length and some have a long focal length . Convex lenses are con- verging lenses . The light is bent toward the thicker part of the lens . Convex lenses form real images . You remember that ...
... length . Some convex lenses have a short focal length and some have a long focal length . Convex lenses are con- verging lenses . The light is bent toward the thicker part of the lens . Convex lenses form real images . You remember that ...
Σελίδα 327
... length lens Concave lens Object Real image Virtual image Distance equals the sum of the focal lengths FIGURE 8-47 Telescope . Objective , long focal length lens FIGURE 8-46 Images formed by concave lenses are erect but smaller in size ...
... length lens Concave lens Object Real image Virtual image Distance equals the sum of the focal lengths FIGURE 8-47 Telescope . Objective , long focal length lens FIGURE 8-46 Images formed by concave lenses are erect but smaller in size ...
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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