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67 Cards in this Set
- Front
- Back
Not a method of heat transfer
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Specific heat
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Fuel is burned inside chambers called cylinders
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Internal combustion engine
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In the ___ phase of a four stroke engine, waste gases are released.
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Exhaust stroke
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A poor insulator of heat
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Iron
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A ______ is an example of a heat mover.
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Refrigerator
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Describes the measure of the average kinetic energy of the particles in an object
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Temperature
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Not used to calculate change in thermal energy.
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Volume
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______ does not require the presence of particles of matter.
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radiation
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The name for thermal energy that is transferred only from a higher temperature to a lower temperature.
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Heat
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Changes thermal energy into mechanical energy.
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Heat engine
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The temperature at which all particle motion of matter ceases.
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Absolute zero
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state of matter: definite shape;definite volume
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solid
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most common state of matter in the universe
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plasma
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used to measure pressure
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kilopascals
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uses pascal's principle
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hydraulics
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use bernoulli's principle
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airplanes
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state of matter in which particles are farthest apart
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plasma
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state of matter that would fill a room quickest
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gas
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upward force in a liquid
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buoyancy
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The amount of energy needed to change a solid to a liquid at its melting point
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heat of fusion
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An example of an SI unit is a...
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second
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___ is the system of measurement used by scientists around the world.
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SI
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SI is based on powers of...
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ten
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What is the prefix for one one-thousandth?
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-milli
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What is the symbol for deciliter
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dL
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what is the symbol for micrograms
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the funny u shaped thing and g
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the distance between two points is...
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length
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what is not a derived unit
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meter (m)
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which is not equal to 1000 mL
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1cubic centimeter
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total distance traveled divided by the total travel time
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average speed
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the tendency of an object to resist a change in its motion
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inertia
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the proper unit of acceleration
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m/s sqaured
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not used in calculating acceleration
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average speed
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the forces on an object with a net force of zero
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balanced forces
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speed can be defined by...
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distance/time
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what has the greatest inertia
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a car parked on the side of the road
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what best describes who will likely hit the win shield in a head-on collision
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inertia of the unbelted person
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an object will_________ when a net force acts on it
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accelerate
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newton's second law is...
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a=F/m
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The force of gravity on an object is its...
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weight
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________is not a type of friction
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centripetal
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an object falling towards earth
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falls faster the heavier it is
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projectiles follow a curved path because they have...
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inertia
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the product of mass and velocity is...
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momentum
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_____ exerts the weakest gravitational force on earth
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pluto
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when a leaf falls,__ ____ opposes gravity
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air resistance
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in a circular motion, the centripetal force is ...
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towards the center
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when energy is transferred, a_____ must occur
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change
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the small cat running down the street has more kinetic energy
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nothing
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when a lump of clay is dropped, the energy transforms from...
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GPE>KE>thermal energy
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at an oranges highest point, it will have...
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mostly potential energy
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The GPE of an object depends on...
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weight and height
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The idea that the total amount of energy is constant is central to the law of conservation of energy
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nothing
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kinetic energy is directly related to...
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mass
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friction frequently causes some of an object's mechanical energy to be changed into...
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thermal energy
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the process of breaking apart large atomic nuclei into smaller nuclei...
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nuclear fission
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green plants store energy from the Sun in...
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chemical potential energy
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work must involve...
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the transfer of energy
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how many types of simple machines
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6
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in an ideal machine...
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work input is equal to work output
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a machine cannot...
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multiply energy
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_____ indicates the number of times a machine multiplies the effort force.
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mechanical advantage
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you could increase the IMA of an inclined plane by...
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increasing its length
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the effort rope of a single fixed pulley must move ___ to raise a resistance 4 m
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4 m
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in a wheel and axle, ____ exerts the resistance force
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the axle
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IMA=l/h 8/2 IMA=4
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nothing
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the IMA of an inclined plane 8m long and 2m high is...
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4
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