A mixture consisting of tiny particles that are intermediate in size between those in solutions and those in suspensions and that are suspended in a liquid, solid, or gas.
What is a colloid?
100
A change in the position of an object.
What is displacement?
100
A quantity defined as the product of the mass and velocity of an object.
What is momentum?
100
A quantity that measures the rate at which work is doe or energy is transformed.
What is power?
100
A measure of how high or low a sound is percieved to be depending on the frequency of the sound wave.
What is pitch?
200
A molecule that has an uneven distribution of electrons.
What is a polar compound/
200
The rate at which velocity changes over time.
What is acceleration?
200
The curved path that an object follows when thrown, launched, or otherwise, projected near the surface of Earth; the motion of objects that are moving in two dimensins under the influence of gravity.
What is projectile motion?
200
A quantity, usually expressed as a percentage, that measures the ratio of useful work output to work input.
What is efficiency?
200
A change in the direction of a wave when the wave finds an obstacele or an edge, such as an opening.
What is diffraction?
300
A solution that holds more dissolved solute than is required to reach equilibrium at a given temperature.
What is a supersaturated solution?
300
A force that opposes motion between two surfaces that are in contact.
What is friction?
300
The tendency of an object to resist being moved or, if the object is moving, to resist a change in speed or direction until an outside force acts on the object.
What is inertia?
300
The energy of a moving object due the object's motion.
What is kinetic energy?
300
A wave in which the particles of the medium move perpendicular to the direction the wave is traveling.
What is transverse wave?
400
The amount of a particular substance in a given quantity of a mixture, solution, or ore,
What is concentration?
400
The speed of an object in a particular direction.
What is velocity?
400
The motion of a body when only the force of gravity is acting on the body.
What is free fall?
400
A quantity that measures how much a machine multiplies force or distance.
What is mechanical advantage?
400
A wave that consists of oscillating electric and magnetic fields, which radiate outward at the speed of light.
What is electromagnetic wave?
500
The intermolecular force occuring when a hydrogen atom that is bonded to a highly electronegative atom of one molecule is attracted to two unshared electrons of another molecule.
What is hydrogen bonding?
500
An action exerted on a body in order to change the body's state of rest or motion. Has magnitude and direction
What is force?
500
The constant velocity of a falling objecct when the force of air resistance is equal in magnitude and opposite in direction to the force of gravity.
What is terminal velocity?
500
A machine made of one or more simple machine.
What is compound machine.
500
A system that uses accousic signals and echo returns to determine the location of objects or to communicate.