Free Printable PreTest: Introduction to Light Waves

1.

In this diagram, which of the angles shown represents the angle of incidence? _____ represents the angle of incidence.

a)

Angle A

b)

Angle B

c)

Angle C

d)

Angle D

2.

All electromagnetic waves travel at the same speed, through a vacuum. This accepted value for the speed of light (c) = ____.

a)

299,792,458 m/sec

b)

$3.00\ x\ 10^{8^{\ ^{ }}}$ m/sec

c)

299,792 km/hr

d)

$3.0\ x\ 10^8$ km/sec

3.

The scientist who first determined a numerical value for the speed of light was the Danish astronomer, _____ _____.

a)

Oersted, Hans Christian

b)

Galilei, Galileo

c)

Faraday, Michael

d)

Romer, Ole

4.

Light waves are produced by oscillating _____ that are perpendicular to one another.

a)

Particles

b)

Electric Field and Magnetic Field

c)

Photons

d)

Electric Fields

5.

The (a) of an electromagnetic wave is the distinguishing characteristic of its unique behavior.

6.

The part of the Electromagnetic Spectrum that the human eye is sensitive to(can detect), is called the _____ _____.

a)

Optimal Light

b)

Invisible Spectrum

c)

EM Spectrum

d)

Visible Spectrum

7.

When solving a light wave problem, the appropriate equation to use is _____.

a)

$c\ =\ f\ \ x\ \ \lambda$

b)

$v\ \ =\ \ f\ \ x\ \ \lambda$

c)

$s\ \ =\ \ f\ \ x\ \ \lambda$

d)

$f\ \ =\ \ s\ \div\ \lambda$

8.

The E-M waves having the lowest frequency, approximately $\left(10^6\ Hz\ \ -\ 10^{9^{ }}Hz\ \right)$ , are _____.

a)

Gamma Rays

b)

Microwaves

c)

Radio Waves

d)

X-Rays

9.

The E-M Wave of visible light having the longest wavelength is (a) light.

10.

_____, in general, is the direction of the electric field in a light wave.

a)

Polarization

b)

Doppler Shift

c)

Unpolarization

d)

Intensity

11.

The Angstrom, Nanometer, Micrometer and Meter are units of measurement for the (a) of a wave.

12.

The human eye has three types of light-sensitive cells that detect _____, respectively, known as the primary colors.

a)

Yellow, Orange and Purple Light

b)

Red, Green and Blue Light

c)

Magenta, Yellow and Cyan Light

d)

Blue, Yellow and Magenta Light

PreTest: Introduction to Light Waves

Total questions: 12

Worksheet time: 10mins

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