the substance that dissolves to form a solution is the ...
A pure substance made of 2 or more elements that are chemically combined is a ...
If a spoonful of salt is mixed in a glass of water, the salt is the ...
... are solid solutions of metals or nonmetals dissolved in metals
a(n) ... is a pure substance that can't be separated into simpler substances by physical or chemical means.
a ... is a substance in which there is only one type of particle.
... are elements that are shiny and are good conductors of thermal energy and electric current.
... are elements that are poor conductors of thermal energy and electric current.
... are also called semiconductors.
a ... is a combo. of 2 or more substances that are not chemically combined.
... opposes motion b/t surfaces that are touching.
forces are expresssed in ...
a ... is determined by combining forces
any change in position over time is an example of ...
the newtion is the SI unit of ...
a change in a moving object's direction always results in a change of
a ... force always acs to oppose motion
the ... of an object can change with its location.
... is the rate at which an object moves but it does not include direction
when observing an object in motion in relation to an object that appears to stay in place, the object that appears to stay in place is a ...
total distance divided by total time gives an object's average ...
the speed of an object in a particular direction is an object's ...
the acceleration that occurs in circular motion is known as ...
a push or a pull is a ...
when the net force on an object is not zero, the forces on the object are...
... are substances that are applied to surfaces in order to reduce the friction b/t them.
... is the force of attraction b/t objects that is due to their masses.
... is a measure of the gravitational force of an object.
... is the amount of matter in an object
most of the time objects do not travel at ... speed, which is why it is useful to calculate an object's average speed.
cars traveling in opposite directions on a highway may attain the same speed, but never the same...
Sir Isaac Newton's discoveries led to the law of ...
... is the path that a thrown object follows.
... only occurs when there is no air resistance.
when air resistance exactly matches the downward force of gravity, a falling object stops accelerating and reaches...
an object at rest tends to remain at rest. this property is called ...
... can only occur in a vacuum or in space
a car accelerated from 60 km/h. The car has increases its ...
the horizontal movement given to an arrow by a bow is one component of...
traveling in a circular or a nearly circular path around another object is ...
the unbalanced force that causes objects to move in a curcular paht is called...
... motion is motion that is parallel to the ground
... motion is motion that is perpendicular to the ground
the law of ... of momentum states that when two or more objects interact, they may exchange momentum, but the total amount of momentum stays the same.
if you're riding a horse and it suddenly stops just before a hurdle, you will most likely continue moving forward. This is explained in Newton's ... law of motion.
falling objects stop accelerating at ...
Newton's ... law of motion: whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first.
Newton's ... law of motion: the acceleration of an object depends on the mass of the object and the amount of force applied.
... is the tendency of all objects to resist any change in motion.
net force = 0
... causes acceleration to stop at terminal velocity
all objects accelerate toward Earth at a rate of ...
a property of moving objects that depends on mass and velocity is ...
because air particles have mass, they also have inertia that resists movement, which is called...
... provides the centripetal force that keeps objects in orbit.
a colloid has properties of both solutions and ...
a ... is composed of particles of 2 or more substances that are distributed evenly amongst one another.
... is a process that separates a mixture based on the boiling points of the component.
a ... is a machine that separates mixtures according to the densities of the components
solutions are often described as ... mixtures b/c they have the same appearance and properties throughouth the mixture.
the process oin which particles of substances separate and spread evenly throughout a mixture is known as ...
a ... is a substance in which a solute is dissolved.
... is a measure of the amount of solute dissolved in a solvent.
an ... solution contains less solute than a concentrated solution.
a solution that contains all the solute it can hold at a given temperature is said to be ...
a ... is a mixture in which particles of a material are dispersed throughout a liquid or gas but are large enough that they settle out.
a ... is a mixture in which the particles are dispersed throughout but aren't heavy enough to settle out.
suspensions are ... mixtures b/c they contain different components that are easily seen.
... is the process of using electric current to break compounds into simpler compounds and elements.
when a force is applied to an object but does not cause the object to move, ... occurs.
the physical form of a substance, such as a solid, liquid, or gas, is a... property of water.
the ability of a substance to be pounded into thin sheets is ....
... is the ability to be drawn or pullead into a wire.
... is the ability to be drawn or pulled into a wire.
the ability of a substance to dissolve in another substance is ...
some objects float on fluids b/c of ..., the mass per unit volume of an object.
photosynthesis, the process in which plants change carbon dioxide and water into carbohydrates and oxygen, is an example of a ... change.
wheather helium is in a large airship or in a small balloon floating right beside it, helium's ... will be the same.
... is the ability to burn.
a ... change occurs when one or more substances are changed into enitrely new substances with different properties.
... is anything that has volume and mass.
... properties of a substance are always the same whether the sample you are observing is large or small and are often used to identify substances.
acid precipitation is a result of a few different ... changes taking place when fossil fuels are burned.
the drops of water that appear on the outside of a glassof cold juice on a warm day are an example of ...
the way a balloon decreases in volume when the temperature is decreased illustrates...
... is the change of state from a liquid to a gas.
sublimation is a change of state from a solid directly to a ...
in a(n) ... change, energy is added to a substance.
magnetic fields are used to contain ...
crystalline and amorphous are 2 categories of...
a (n) ... solid holds its shape even though particles don't have an orderly arrangement.
a (n) ... change occurs when energy is removed from a substance