Science 2nd 9 wks Study Guide
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| seesaw- simplemachine | lever
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| when the net force equals 0 | balanced
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| a change that does change the substance | chemical
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| an object at rest tends to stay at rest | inertia
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| a solid changing to a gas | sublimation
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| zipper- simple machine | wedge
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| a change that does not change the substance | physical
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| speed in a given direction | vlocity
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| solid to a liquid` | melting
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| NaCL | salt
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| distance divided by time | speed
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| zero on the kelvin scale | absolute 0
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| rate at which velocity changes | acceleration
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| transferor heat from one particle of matter to another | conduction
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| the rule that energy cannot be created or destroyed | conservations of energy
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| transfer of heat by the movement of currents within a fluid | convection
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| fixed point around which a lever pivots | fulcrum
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| states that an object at rest will remain at rest and an object in motion will continue moving at a instant velocity unless acted upon y an unbalanced force | newton's 1st law
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| acceleration depends on the objects mass and on the net force acting on the object | newtons 2nd law
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| one object exerts a force on another object, then the second object exerts a force equal to strength in the opposite direction on the 1st object | newtons 3rd law
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| force that pulls objects toward each other | gravity
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| tendency of an object to rest change in motion | inertiea
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| energy that an object has due o its motion | kinetic
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| rate at which one form of energy is transformed into another; rate at which work is done | power
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| stored energy that results from the position or shape of an object | potential energy
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| transfer of heat by electromagnetic waves | radiation
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| what would be three examples of conduction | touching a stove, squeezing ice into your hand, walking on san don a hot sunny day
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| what object heats up faster out of the objects wood, bass, plastic, and steel | steel
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| which object would take the longest to heat up out of these things wood, glass, steel, plastic | plastic
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| Who does insulating your house help in the winter | keeps heat in and cold out
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| how does a liquid thermometer work | the alcohol rises/ falls as convection currents touch the glass tube
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| what are the 6 forms of energy | chemical, thermal, electromagnetic, nuclear, mechanical, electrical
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| Describe the mass and weight of a person on earth compared to the mass and weight of a person in space | mass is the same and weight is different
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| give 3 examples of single energy transfer | toaster, cellphne, running
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| Why does the handle of a spoon get hot while sitting in steaming tea | conduction makes the particle sin the spoon to move faster
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| What would be three examples of convection | sea breeze, air conditioning unit, flying a kite
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| How does the mass of an object effect the gravity of the object | larger the mass, the more gravity an object has
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| when you heat an object, what happens to the particles of that object | the particles vibrate faster; expanding
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| give 3 examples of potential energy | book on a shelf, wall, desk
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| name three materials that would make good insulators | thick coat, insulation in your house, blanket
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| what two simple machines are used in a shovel | wedge lever
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| when an object is tossed straight up in the air, here is the potential energy the greatest? | at the highest point
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| Which form of energy would you have the greatest energy from the smallest amount of material | nuclear
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| what changes when a car moes through a curve | it accelerates through the curve
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| give three example sod inertia | book on table, stopping at a red light quickly, sliding into base
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| how does burning gasoline convert energy | chemical energy changes to mechanical energy
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| The material ? has a tremendous amount of potential energy (nuclear) | uranium
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| inertia is the reason we have ? and ? in cars | seatbelts, airbags
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| if the force of an object in motion continues to ? in a ? line and a ? speed until acted upon by an outside force | move, straight, constant
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| a rocket launch would be an example of newton's ? law | 3rd
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| to stop a bicycle, you would use ? friction | sliding
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| the amount of ? a machine can do in a given ? is efficiency | work, time
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| if the force of an object doubled, the acceleration of the object would? | double
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| your arm is ?. the muscle provides the ? and your ? would be the fulcrum | lever, input foce, elbow
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| a ball at the top of a ramp has ? energy | potential
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| flies through the air at an arch or angle | projectile
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| example of projectile | dropping an object from a plane
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Created by:
ewoodham
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