Multiple Choice Flashcards
Objects that emit energy in the form of light are called
A. Luminous
B.non-luminous
C.incandescence
D.fluorescent
A. Luminous
The glowing of luminous clock or watch dials is an example of
A. Phosphorescence
B. Incandescence
C. Florescence
D. Bioluminescence
A. Phosphorescence
Which of the following objects is nonluminous
A. The moon
B. The sun
C. Burning candle
D. Light bulb
A
The moon
Which of the following will transmit light?
A. Rubber
B. Glass
C. Wood
D. Steel
B. Glass
Materials that allow all light to be transmitted are called
A. Transparent
B. Translucent
C. Opaque
D. Reflective
A. Transparent
Materials that allow some light pass-through are called
A. Trans parent
B. Translucent
C. OPaque
D.reflective
B. Translucent
Which of the following reflect more light
A. Black objects
B. Dark objects
C. Dull objects
D. Light-coloured objects
D. Light-coloured objects
When asphalt absorbs light some is converted into
A. Electric energy
B. thermal energy
C. Chemical energy
D. Light energy
B. Thermal heat energy
What is the correct order of the colours of the visible spectrum
Red orange yellow green blue violet
We see the colour red because
A. Red light is refracted
B. Red light is reflected
C. Red light is absorbed
B. Red light is reflected
We see black when
A. All light is absorbed
B. Some light is absorbed
A. All light is absorbed
We see white when
A. All light is absorbed
B.some light is absorbed
C.no light is absorbed
D. All light is reflected
D. All light is reflected
Light travels in __________ lines
Straight
