Science Vocabulary

What is the definition of KINETIC ENERGY?

• the capacity to do work

• a reflected sound wave

• the energy of an object's motion

• a material in which charges cannot move freely

What is the definition of ECHO?

• a device that converts electrical energy to Mechanical energy

• a reflected sound wave

• the release of electricity stored in a source

• the addition of an impurity element to a semiconductor

What is the definition of an ION?

• The smallest particle of an element that has the chemical properties of that element

• A substance that can donate a proton to another substance and has a pH below 7

• The rate at which velocity changes over time.

• the combination of 2 or more waves that results in a single wave

What is the definition of an ATOM?

• A tentative explanation for an observation or phenomenon. A hypothesis is used to make testable predictions.

• a science word

• The smallest particle of an element that has the chemical properties of that element

• A picture of an object formed by rays of light

What is the definition of IMAGE?

• Part of the electromagnetic spectrum that consists of waves with frequencies between those of microwaves and visible light

• A unit of measurement for power equal to 1000 watts.

• A law of physics stating that the angle at which light strikes a surface (the angle of incidence) equals the angle at which it reflects off the surface (the angle of reflection).

• A picture of an object formed by rays of light

What is the definition of LENS?

• The process by which a substance changes from its solid state to its liquid state.

• A measure of how much matter an object is made of.

• A solid bar that rotates, or turns, around a fixed point (fulcrum); one of the six simple machines.

• A transparent optical tool that refracts light.

What is the definition of MOTION?

• An element that tends to be shiny, easily shaped, and a good conductor of electricity and heat.

• A change of position over time.

• I don't know

• The international standard unit of length, about 39.37 inches

What is NEWTON'S FIRST LAW?

• A scientific law stating that objects at rest remain at rest, and objects in motion remain in motion with the same velocity, unless acted on by an unbalanced force.

• A scientific law stating that the acceleration of an object increases with increased force and decreases with increased mass.

• A scientific law stating that every time one object exerts a force on another object, the second object exerts a force that is equal in size and opposite in direction back on the first object.

• a law in the government

What is the definition of OPTICS?

• A compound that is based on carbon

• A circuit in which current follows more than one path. Each device that is wired in a parallel circuit has its own path to and from the voltage source.

• The study of light, vision, and related technology.

• A polymer that can be molded or shaped.

What is the definition of COMPOUND?

• The amount of energy needed to increase the temperature of one gram of water by one degree Celsius.

• A substance made up of two or more different types of atoms bonded together.

• A situation in which two objects in close contact exchange energy and momentum

• two