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17 Cards in this Set
- Front
- Back
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What is friction?
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A force that works against movement, commonly found in the inclined plane.
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What do you get when you put two inclined planes together?
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A wedge
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How do you calculate efficiency?
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Wanted work/Work put in x 100
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What is energy measured in?
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Energy is measured in joules and is the ability to do work
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Mechanical advantage formula?
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Load force/Effort force for force
For distance Effort arm distance/ Load arm distance |
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What are the two simple machines that basically make up the rest?
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The lever, which turns into a pulley wheels and gears and the inclined plane is wedge screw.
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Microscope parts?
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Ocular lens 10x, eye piece arm base ocular tube revolving nosepiece objective lenses 4x 10x 40x stage stage clips light source diaphragm adjustment knob fin and coarse
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Diffusion and Osmosis?
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Diffusion is when things go from an area of high concentration to low concentration Osmosis The movement of things going through a semi permable membrane
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What is the main form of protection for a plant cell?
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A cell wall
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What are three characteristics of life?
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Use energy Exchange with environment, adapt, reproduce, grow, cells, motion.
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What is the purpose of the endoplasmic reticulum?
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transports proteins and nutrients through the cell
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What are the 5 different organ systems?
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Digestive respiratory circulatory excretory nervous
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What is an illness for each system?
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Diahrea constipation ulcers tape worms,) (Asthma smokers lung bronchitis.) Respiratory (Heart attack blocked arteries) Circulatory (kidney stones kidney disease) Excretory (stroke parlysis) Nervous
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What are two properties of light
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Constant speed Straight lines can be reflected form of energy
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What does the film of a camera compare too in the eye?
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The retina
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What does EMR stand for
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Electro Magnetic Response
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What is an example of natural and artificial light?
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The sun and the lightbulb
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