# Science Electromagnetic Spectrum Vocabulary

### 17 terms by ceciquintanilla

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### Wave

A disturbance that transfers energy from one place to another.

### Wavelength

The distance between two corresponding parts of a wave.

### Crest

The highest part of a transverse wave.

### Trough

The lowest part of a transverse wave.

### Amplitude

The distance between the rest position and the highest or lowest part of a wave.

### Reflection

The bouncing back of an object or a wave when it hits a surface through which it cannot pass.

### Law of Reflection

Angle of reflection = Angle of incidence.

### Normal Line

The correct trajectory of the incident ray.

### Incident ray

The ray which is entering the surface.

### Reflected ray

The ray which is reflected or bounced of the surface.

### Angle of Incidence

The angle at which the incident ray is entering the surface.

### Angle of Reflection

The angle at which the reflected ray is bounced off, and is equal to the angle of incidence.
13. Plane mirror: a surface capable of reflecting a ray.

### Plane Mirror

A flat mirror that produces an upright, virtual image the same size as the object.

### Refraction

The bending of waves as they enter a new medium at an angle.

### Convex Lens

A lens that is thicker on the center than at the edges.

### Concave Lens

A lens that is thinner in the center than at the edges.

### Electromagnetic Spectrum

The complete range of electromagnetic waves placed in order of increasing frequency.

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