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L_0899 | ferromagnetic material | T_4442 | FIGURE 1.4 | image | textbook_images/ferromagnetic_material_22841.png |
L_0901 | force | T_4446 | FIGURE 1.1 | image | textbook_images/force_22842.png |
L_0901 | force | T_4447 | FIGURE 1.2 | image | textbook_images/force_22843.png |
L_0902 | forms of energy | T_4449 | FIGURE 1.1 This drummer has mechanical energy as he moves the drumsticks to hit the drums and cymbals. The moving drumsticks also have mechanical energy, but they would have mechanical energy even if they werent moving. Thats because they have the potential to fall when the drum- mer is holding them above the floor. This potential energy is due to gravity. | image | textbook_images/forms_of_energy_22844.png |
L_0902 | forms of energy | T_4449 | FIGURE 1.2 | image | textbook_images/forms_of_energy_22845.png |
L_0902 | forms of energy | T_4449 | FIGURE 1.3 The bright lights on this stage use elec- trical energy. They are wired into the electrical system of the of the hall. The guitars and microphone also use electri- cal energy. You can see the electrical cords running from them to the outlet on the floor below the musicians. | image | textbook_images/forms_of_energy_22846.png |
L_0902 | forms of energy | T_4449 | FIGURE 1.4 starts with vibrations of his vocal cords, which are folds of tissue in his throat. The vibrations pass to surrounding particles of matter and then from one particle to another in waves. Sound waves can travel through air, water, and other substances, but not through empty space. | image | textbook_images/forms_of_energy_22847.png |
L_0904 | frequency and pitch of sound | T_4453 | FIGURE 1.1 | image | textbook_images/frequency_and_pitch_of_sound_22850.png |
L_0904 | frequency and pitch of sound | T_4453 | FIGURE 1.2 | image | textbook_images/frequency_and_pitch_of_sound_22851.png |
L_0905 | friction | T_4455 | FIGURE 1.1 | image | textbook_images/friction_22852.png |
L_0905 | friction | T_4455 | FIGURE 1.2 | image | textbook_images/friction_22853.png |
L_0905 | friction | T_4456 | FIGURE 1.3 | image | textbook_images/friction_22854.png |
L_0905 | friction | T_4456 | FIGURE 1.4 | image | textbook_images/friction_22855.png |
L_0906 | fundamental particles | T_4459 | FIGURE 1.1 | image | textbook_images/fundamental_particles_22857.png |
L_0907 | gamma decay | T_4463 | FIGURE 1.1 | image | textbook_images/gamma_decay_22858.png |
L_0908 | gamma rays | T_4467 | FIGURE 1.1 | image | textbook_images/gamma_rays_22859.png |
L_0910 | gravity | T_4474 | FIGURE 1.1 | image | textbook_images/gravity_22864.png |
L_0911 | groups with metalloids | T_4477 | FIGURE 1.1 | image | textbook_images/groups_with_metalloids_22865.png |
L_0911 | groups with metalloids | T_4480 | FIGURE 1.2 Boron is a very hard, black metalloid with a high melting point. In the mineral called borax, it is used to wash clothes. In boric acid, it is used as an eyewash and insecticide. | image | textbook_images/groups_with_metalloids_22866.png |
L_0911 | groups with metalloids | T_4480 | FIGURE 1.3 | image | textbook_images/groups_with_metalloids_22867.png |
L_0911 | groups with metalloids | T_4481 | FIGURE 1.4 | image | textbook_images/groups_with_metalloids_22868.png |
L_0911 | groups with metalloids | T_4481 | FIGURE 1.5 Tellurium is a silvery white, brittle met- alloid. It is toxic and may cause birth defects. Tellurium can conduct electricity when exposed to light, so it is used to make solar panels. It has several other uses as well. For example, it makes steel and copper easier to work with and lends color to ceramics. | image | textbook_images/groups_with_metalloids_22869.png |
L_0912 | halogens | T_4483 | FIGURE 1.1 | image | textbook_images/halogens_22870.png |
L_0912 | halogens | T_4484 | FIGURE 1.2 | image | textbook_images/halogens_22871.png |
L_0913 | hearing and the ear | T_4487 | FIGURE 1.1 | image | textbook_images/hearing_and_the_ear_22873.png |
L_0914 | hearing loss | T_4491 | FIGURE 1.1 | image | textbook_images/hearing_loss_22875.png |
L_0915 | heat | T_4495 | FIGURE 1.1 | image | textbook_images/heat_22878.png |
L_0915 | heat | T_4495 | FIGURE 1.2 | image | textbook_images/heat_22879.png |
L_0916 | heat conduction | T_4498 | FIGURE 1.1 Hot Iron: A hot iron removes the wrinkles in a shirt. Hot Cocoa: Holding a cup of hot cocoa feels good when you have cold hands. Camp Stove: This camp stove can be used to cook food in a small pot. Snow: Ouch! Can you imagine how cold this snow must feel on bare feet? | image | textbook_images/heat_conduction_22880.png |
L_0917 | heating systems | T_4500 | FIGURE 1.1 | image | textbook_images/heating_systems_22881.png |
L_0917 | heating systems | T_4502 | FIGURE 1.2 Warm-air heating system. | image | textbook_images/heating_systems_22882.png |
L_0917 | heating systems | T_4502 | FIGURE 1.3 | image | textbook_images/heating_systems_22883.png |
L_0919 | hydrocarbons | T_4511 | FIGURE 1.1 | image | textbook_images/hydrocarbons_22886.png |
L_0919 | hydrocarbons | T_4512 | FIGURE 1.2 | image | textbook_images/hydrocarbons_22887.png |
L_0920 | hydrogen and alkali metals | T_4515 | FIGURE 1.1 | image | textbook_images/hydrogen_and_alkali_metals_22888.png |
L_0920 | hydrogen and alkali metals | T_4516 | FIGURE 1.2 Hydrogen has the smallest, lightest atoms of all elements. Pure hydrogen is a colorless, odorless, tasteless gas that is nontoxic but highly flammable. Hydrogen gas exists mainly as diatomic (two-atom) molecules (H2 ), as shown in the diagram on the right. Hydrogen is the most abun- dant element in the universe and the third most abundant element on Earth, occur- ring mainly in compounds such as water. | image | textbook_images/hydrogen_and_alkali_metals_22889.png |
L_0920 | hydrogen and alkali metals | T_4516 | FIGURE 1.3 | image | textbook_images/hydrogen_and_alkali_metals_22890.png |
L_0920 | hydrogen and alkali metals | T_4516 | FIGURE 1.4 | image | textbook_images/hydrogen_and_alkali_metals_22891.png |
L_0921 | hydrogen bonding | T_4518 | FIGURE 1.1 | image | textbook_images/hydrogen_bonding_22892.png |
L_0923 | inclined plane | T_4526 | FIGURE 1.1 | image | textbook_images/inclined_plane_22894.png |
L_0923 | inclined plane | T_4526 | FIGURE 1.2 | image | textbook_images/inclined_plane_22895.png |
L_0924 | inertia | T_4527 | FIGURE 1.1 Inertia explains why its important to always wear a seat belt. | image | textbook_images/inertia_22896.png |
L_0924 | inertia | T_4529 | FIGURE 1.2 | image | textbook_images/inertia_22897.png |
L_0925 | intensity and loudness of sound | T_4531 | FIGURE 1.1 | image | textbook_images/intensity_and_loudness_of_sound_22899.png |
L_0926 | internal combustion engines | T_4534 | FIGURE 1.1 | image | textbook_images/internal_combustion_engines_22901.png |
L_0928 | ionic bonding | T_4539 | FIGURE 1.1 | image | textbook_images/ionic_bonding_22902.png |
L_0928 | ionic bonding | T_4540 | FIGURE 1.2 | image | textbook_images/ionic_bonding_22903.png |
L_0929 | ionic compounds | T_4543 | FIGURE 1.1 | image | textbook_images/ionic_compounds_22904.png |
L_0930 | ions | T_4548 | FIGURE 1.1 | image | textbook_images/ions_22906.png |
L_0931 | isomers | T_4554 | FIGURE 1.1 | image | textbook_images/isomers_22907.png |
L_0931 | isomers | T_4554 | FIGURE 1.2 | image | textbook_images/isomers_22908.png |
L_0931 | isomers | T_4554 | FIGURE 1.3 | image | textbook_images/isomers_22909.png |
L_0931 | isomers | T_4554 | FIGURE 1.4 | image | textbook_images/isomers_22910.png |
L_0932 | isotopes | T_4558 | FIGURE 1.1 | image | textbook_images/isotopes_22911.png |
L_0933 | kinetic energy | T_4561 | FIGURE 1.1 | image | textbook_images/kinetic_energy_22912.png |
L_0934 | kinetic theory of matter | T_4563 | FIGURE 1.1 | image | textbook_images/kinetic_theory_of_matter_22914.png |
L_0936 | law of reflection | T_4567 | FIGURE 1.1 | image | textbook_images/law_of_reflection_22916.png |
L_0936 | law of reflection | T_4567 | FIGURE 1.2 | image | textbook_images/law_of_reflection_22917.png |
L_0936 | law of reflection | DD_0266 | This diagram shows Ray (optics). In optics, a ray is an idealized model of light, obtained by choosing a line that is perpendicular to the wave fronts of the actual light, and that points in the direction of energy flow. Rays are used to model the propagation of light through an optical system by dividing the real light field up into discrete rays that can be computationally propagated through the system by the techniques of ray tracing. This allows even very complex optical systems to be analyzed mathematically or simulated by computer. All three rays should meet at the same point. The Principal Ray or Chief Ray (sometimes known as the b ray) in an optical system is the meridional ray that starts at the edge of the object and passes through the center of the aperture stop. This ray crosses the optical axis at the locations of the pupils. As such, chief rays are equivalent to the rays in a pinhole camera. The Central Ray is perpendicular to Infrared Radiation. The third one, called the Focal Ray, is a mirror image of the parallel ray. The focal ray is drawn from the tip of the object through (or towards) the focal point, reflecting off the mirror parallel to the principal axis. | image | teaching_images/optics_ray_diagrams_9167.png |
L_0936 | law of reflection | DD_0267 | This diagram explains the law of reflection and shows how light gets reflected from a surface. The law of reflection states that the angle of incidence (i) is always equal to the angle of reflection (r). The angles of both reflected and incident ray are measured relative to the imaginary dotted-line, called normal, that is perpendicular (at right angles) to the mirror (reflective surface). | image | teaching_images/optics_reflection_9179.png |
L_0936 | law of reflection | DD_0268 | The reflection of a tree shines in to the lake. When the human eye sees the reflection from the tree on the water it looks the right direction. The image of the tree is upside down. The water reflection on the lake makes things upright to the human eye. | image | teaching_images/optics_ray_diagrams_9168.png |
L_0936 | law of reflection | DD_0269 | This diagram depicts how light rays can reflect off various surfaces. Incident rays will reflect back at a specific angle if the surface is smooth. A rough or broken surface will have reflected rays with a wide variety of reflected angles. The left part of the diagram shows why your reflection in a mirror is smooth and natural looking. | image | teaching_images/optics_reflection_9183.png |
L_0937 | lens | T_4570 | FIGURE 1.1 | image | textbook_images/lens_22920.png |
L_0938 | lever | T_4575 | FIGURE 1.1 | image | textbook_images/lever_22921.png |
L_0939 | light | T_4577 | FIGURE 1.1 | image | textbook_images/light_22922.png |
L_0939 | light | T_4579 | FIGURE 1.2 Visible light spectrum. | image | textbook_images/light_22923.png |
L_0939 | light | T_4580 | FIGURE 1.3 | image | textbook_images/light_22924.png |
L_0940 | lipid classification | T_4582 | FIGURE 1.1 | image | textbook_images/lipid_classification_22925.png |
L_0940 | lipid classification | T_4582 | FIGURE 1.2 | image | textbook_images/lipid_classification_22926.png |
L_0940 | lipid classification | T_4583 | FIGURE 1.3 | image | textbook_images/lipid_classification_22927.png |
L_0942 | longitudinal wave | T_4586 | FIGURE 1.1 | image | textbook_images/longitudinal_wave_22932.png |
L_0942 | longitudinal wave | T_4588 | FIGURE 1.2 | image | textbook_images/longitudinal_wave_22933.png |
L_0943 | magnetic field reversal | T_4589 | FIGURE 1.1 | image | textbook_images/magnetic_field_reversal_22934.png |
L_0943 | magnetic field reversal | T_4590 | FIGURE 1.2 | image | textbook_images/magnetic_field_reversal_22935.png |
L_0944 | magnets | T_4592 | FIGURE 1.1 | image | textbook_images/magnets_22936.png |
L_0944 | magnets | T_4592 | FIGURE 1.2 | image | textbook_images/magnets_22937.png |
L_0944 | magnets | T_4592 | FIGURE 1.3 | image | textbook_images/magnets_22938.png |
L_0946 | mechanical advantage | T_4598 | FIGURE 1.1 | image | textbook_images/mechanical_advantage_22939.png |
L_0947 | mechanical wave | T_4602 | FIGURE 1.1 | image | textbook_images/mechanical_wave_22940.png |
L_0949 | mendeleevs periodic table | T_4606 | FIGURE 1.1 | image | textbook_images/mendeleevs_periodic_table_22942.png |
L_0949 | mendeleevs periodic table | T_4607 | FIGURE 1.2 | image | textbook_images/mendeleevs_periodic_table_22943.png |
L_0950 | metallic bonding | T_4610 | FIGURE 1.1 Metallic bonds. | image | textbook_images/metallic_bonding_22944.png |
L_0950 | metallic bonding | T_4610 | FIGURE 1.2 Metal worker shaping iron metal. | image | textbook_images/metallic_bonding_22945.png |
L_0951 | metalloids | T_4612 | FIGURE 1.1 | image | textbook_images/metalloids_22946.png |
L_0951 | metalloids | T_4613 | FIGURE 1.2 | image | textbook_images/metalloids_22947.png |
L_0952 | metals | T_4615 | FIGURE 1.1 | image | textbook_images/metals_22948.png |
L_0953 | microwaves | T_4617 | FIGURE 1.1 | image | textbook_images/microwaves_22949.png |
L_0953 | microwaves | T_4619 | FIGURE 1.2 | image | textbook_images/microwaves_22950.png |
L_0953 | microwaves | T_4620 | FIGURE 1.3 | image | textbook_images/microwaves_22951.png |
L_0954 | mirrors | T_4622 | FIGURE 1.1 | image | textbook_images/mirrors_22952.png |
L_0954 | mirrors | T_4623 | FIGURE 1.2 | image | textbook_images/mirrors_22953.png |
L_0954 | mirrors | T_4624 | FIGURE 1.3 | image | textbook_images/mirrors_22954.png |
L_0954 | mirrors | T_4624 | FIGURE 1.4 | image | textbook_images/mirrors_22955.png |
L_0956 | modern periodic table | T_4630 | FIGURE 1.1 | image | textbook_images/modern_periodic_table_22959.png |
L_0956 | modern periodic table | T_4633 | FIGURE 1.2 | image | textbook_images/modern_periodic_table_22960.png |
L_0957 | molecular compounds | T_4636 | FIGURE 1.1 | image | textbook_images/molecular_compounds_22961.png |
L_0958 | momentum | T_4638 | FIGURE 1.1 | image | textbook_images/momentum_22962.png |
L_0959 | motion | T_4641 | FIGURE 1.1 | image | textbook_images/motion_22963.png |
L_0959 | motion | T_4641 | FIGURE 1.2 Click image to the left or use the URL below. URL: https://www.ck12.org/flx/render/embeddedobject/5019 | image | textbook_images/motion_22964.png |
L_0960 | musical instruments | T_4643 | FIGURE 1.1 | image | textbook_images/musical_instruments_22965.png |
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