# Shared Flashcard Set

## Details

Review for Term End Exam 1
These are the concepts you need to master for level 1-2 questions.
23
Science
11/16/2014

Term
 Define the term applied force.
Definition
 It is a force that is applied to an object by a person or another object.
Term
 Define the term force.
Definition
 Force is a push or a pull that can cause an object to move, speed up, slow down, or change its direction.
Term
 angle of incidence
Definition
 It is the angle between the normal line and the incident ray.
Term
 angle of reflection
Definition
 It is the angle between the normal line and the reflected ray.
Term
 angle of refraction
Definition
 It is the angle between the normal line and the refracted ray.
Term
 incident ray
Definition
 It is the light ray that approaches the mirror.
Term
 normal line
Definition
 It is the line perpendicular to the surface.
Term
 reflected ray
Definition
 It is the light ray that leaves the mirror.
Term
 refracted ray
Definition
 It is the light ray that bends (changes direction and speed) as it passes through the boundary of two media.
Term
 Define the term medium.
Definition
 It is a substance through which a wave moves.
Term
 Define friction.
Definition
 It is the force exerted by a surface as an object moves across it or makes an effort to move across it.
Term
 Define tension force.
Definition
 It is the force that is supplied through a string, rope, cable or wire when it is pulled tight by forces acting from opposite ends.
Term
 Define the term spring force.
Definition
 It is the force exerted by a compressed or stretched spring upon any object that is attached to it.
Term
 State Hooke’s law.
Definition
 Hooke’s Law states that the amount that the spring extends is proportional to the amount of force exerted on it.
Term
 Define mass.
Definition
 It refers to the amount of matter that is contained by the object.
Term
 Define the term mechanical wave.
Definition
 It is a wave that transfers energy through a medium (matter /substance).
Term
 Define weight.
Definition
 It is the force of gravity acting upon that object.
Term
 Define air resistance.
Definition
 It is a special type of frictional force that acts upon objects as they travel through the air.
Term
 Hertz
Definition
 It is the unit of frequency (number of waves per second).
Term
 Meters
Definition
 It is unit of wavelength (distance between crest to crest or the distance between trough to trough) and amplitude is the distance between a line through the middle of a wave and a crest or trough).
Term
 Meters per second (m/s)
Definition
 It is the unit for speed.
Term
 State the law of reflection.
Definition
 The angle of REFLECTION equals the angle of INCIDENCE[image]
Term
 Virtual image
Definition
 Virtual images are images that are formed in locations where light does not actually reach.
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