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The best type of graph to show how some fixed quantity is broken down into parts is_____? A) Bar B)Circle C)Line D)Scatter |
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One benefit of the SI system is that it is _____? A)Based on units of 100 B)Not used to measure tempature C)Based on units of 10 D)Not used in the U.S. |
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A rule or principle that describes what happened in nature is a _____? A) Hypothesis B) Scientfic Law C)Problem D) Theory |
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A standard for comparsion that helps to ensure that the experimental result is caused by the condition being tested is the _____? A) Constant B)Control C)Dependent Variable D)Hypothesis |
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A factor in an experiment that changes from the manipulation of the independent variable is the __? A) Constant B)Control C)Depenedent Variable D)Hypothesis |
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The application of scientific knowladge to help people is _____? A) Discovery B)Hypothesis C)Pure Science D)Technology |
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If you ride your bike dow a road for 5 miles then turn around and ride back, your distance is ___ your displacement? A)Greater than B)Equal to C)Less than D) Can't Determine |
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Motion is a change in ____? A)Time B)Speed C)Velocity D)Postion |
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The relationship between speed, time and distance is ____? A) t= s/d B) d= t/s C) s=d*t D) s= d/t |
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The acceleration due to gravity is A) 98 m/s^2 B)9.8 m/s^2 C)9.8 m/s D).98 m/s |
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For any object, the greater the force that's applied to it, the greater its _____ will be A) Acceleration B)Gravity C)Inertia D) Velocity |
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The Statment "to every action there is an equal and opposite reaction" is ___. A) the law of conservation B) Newton's 1st C)Newton's 2nd D)Newton's 3rd |
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When two balls collide, the momentum of the balls after the collision is explained by___? A) the law of conservation B) Newton's 1st C)Newton's 2nd D)Newton's 3rd |
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| A) the law of conservation of momentum |
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Increasing the speed of an object____ its potential energy. A) does not affect B) increases C)decreases D)changes |
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The SI unit for energy is___ A) Joule B) Calorie C) Meter per second D) Kilogram |
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A bus engine transfers chemical potential energy into ___ so the bus moves. A) thermal energy B) gravitational potential energy C)electrial energy D)kenetic energy |
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The rate at which an electrical device converts energy from one form to another is __ A) Electrical Energy B) Electrical Power C)Electrical Resistance D)Voltage Regulation |
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A static discharge differs from an electrical current in that a static discharge___ A) involves the movment of ions B) is a flow of electrons C) lasts for only a fraction of a second D) results because a force is exerted on the electrons |
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C) Last for only a fraction of a second |
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A simple transformer consists of two coils of wire called the ___. A) inputs and output loops B) step-up and step-down C) alternating and direct currents D) primary and secondary coils |
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D) Primary and Secondary coils |
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