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Worksheetsscience
Total questions: 35
Worksheet time: 25mins
speed of light?
300,000,000 km/s
300,000 m/s
300
300,000 km/s
do light waves more faster in solids? yes/no
(a)
the change in direction of a wave as it changes speed while moving from 1 medium to another is?
refraction of sound
refraction of light
diffraction
reflection
a …….. is thin at the center and thick at the edge
(a)
what is a lens
an opaque object that absorbs light
a lens that transmits light
a transparent object with 1 curved side that causes light to change direction
a translucent object with 1 curved side that causes light to change direction
when light travels through a …… medium, it moves closer to the normal line
(a)
nearsighted people see far away but not up close
true
false
for far sighted people, the image falls ….. the retina
before
after
at
nowhere
the pupil opens and closes to control the amount of light that enters the eye
true
false
maybe
nearsighted people use which type of lens?
convex mirror
convex lens
concave lens
concave mirror
the white light is made up of:
(write in capital as the abbreviation)
(a)
real image forms when light rays
diverge
absorb
reflect
converge
law of reflection:
(a)
does black reflect all colors?
true
false
the amplitude is from the crest to the rest
true
false
what kinds of waves are mechanical waves?
water waves
light waves
seismic waves
sound waves
the unit of velocity is
(a)
what is the pitch?
how loud or quiet a sound it
where a sound is
how a sound is
how high or low a sound is
if the amplitudes 4, whats the energy increase?
8
16
4
12
which part of the ear magnifies the sound?
iris
pinna
cochlea
ossicles
the wavelength is..
from one crest to trough
from one trough to rest position
from one crest to crest
from one trough to trough
sound travels the fastest through gases
false
true
when the temperature increases the speed
(a)
light is
electromagnetic radiation that you cant see
electro magnetic radiation that you can see
radiant energy
a wave created by vibrating particles
opaque objects ..... light
refract
absorb
transmit
reflect
radiowaves have the longest wavelength and highest frequency and energy
true
false
convex mirrors
converge
diverge
angle of incidence = angle of reflection
this is?
law of conservation of matter
law of gravity
law of reflection
law of mass
virtual image forms when light rays (a) ?
ROYGBIV make up
white light
black light
blue light
whit light
concave mirrors form...
virtual images only
real images only
virtual and real images
blue image
diffuse reflection occurs when
smooth surface
on a mirror
rough surface
cold surface
convex mirrors are bent...
(a)
sound waves vs light waves
light waves require medium, sound waves dont
light waves dont require medium, sound waves do
both require medium
both dont require medium
what do u think of the quiz
(this shouldnt be graded)
