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WorksheetsREVIEW QUIZ
Total questions: 20
Worksheet time: 7mins
In a vacuum, all electromagnetic waves have the same __________
WAVELENGTH
SPEED
FREQUENCY
ENERGY
What vibrates inside the food to make friction?
AIR
SUGAR
WATER
NONE
What will be image if an object is outside the focal point of a concave mirror?
VIRTUAL AND INVERTED
VIRTUAL AND UPRIGHT
REAL AND INVERTED
NO IMAGE FORMED
Analyze the figure. (Convex Mirror) What is the orientation and type of the image formed in the figure?
INVERTED AND REAL
INVERTED AND VIRTUAL
ERECT AND REAL
ERECT AND VIRTUAL
A light ray, travelling parallel to the axis of a convex lens, strikes the lens. What happens to this ray after travelling through the lens?
It will refract through the lens and travel through the focal point on the opposite side of the lens
It travels crossing the axis at a point equal to twice the focal length.
It travels to the axis passing through its focal point.
It travels parallel to the principal axis.
If you look down on a pool of a wavy water, you can’t see your face clearly. Which of the following gives the best explanation for this?
Light entering the water is dispersed.
Regular reflection of light happens on the surface of wavy water.
Irregular reflection of light happens on the surface of wavy water.
Light is reflected from the surface of water in the different direction.
As indicated by the hands of the clock without numbers, the real time is 8:30. What is time indicated in its image if the clock is placed in front of a plane mirror?
2:30
3:30
9:30
10:30
Heat seeking missiles use _____________ electromagnetic technology.
Visible Light
Infrared
Gamma
Radio Wave
Which band of frequency is suitable for communication over great distances?
Low frequency
Medium frequency
very low frequency
extremely low frequency
The range of electromagnetic waves placed in a certain order is called the _______________.
Electromagnetic spectrum
Magnetism
Electricity
ROYGBIV
__________ is a transverse wave that involves the transfer of electric and magnetic energy. It is made up of vibrating electric and magnetic fields that move through space or some medium at the speed of light.
radiation
polarized light
photoelectric effect
electromagnetic waves
He formulated the principle behind electromagnetic induction.
Heinrich Hertz
James Clerk Maxwell
Michael Faraday
Hans Christian Oersted
These are bundles of wave energy.
photoelectric effect
thermograms
photons
spectrums
Which property spells the difference between infra-red and ultraviolet radiation?
Color
speed in vacuum
wavelength
none of the above
What electromagnetic wave used in application of checking banknote signature?
Microwaves
radio waves
ultraviolet rays
gamma rays
Sun’s rays are observed to focus at a point behind the fishbowl near the window. The fishbowl act as what type of lens?
diverging lens
converging lens
focusing lens
objective lens
What kind of mirror is used by department stores to give a wider area and smaller image of the shoppers/buyers?
plane mirror
convex mirror
concave mirror
convex lens
It is a representation of the possible paths a light can take to get from one place to another.
Ray diagram
Mirror
Refraction
Reflection
What will be the arrangement of electromagnetic waves if we will arrange them according to its increasing energy?
gamma, radio, microwave, visible light, infrared, X-ray, ultraviolet
gamma, ultraviolet, microwave, visible light, infrared, X-ray, radio wave
radio wave, microwave, infrared, visible light, ultraviolet, X-ray, gamma ray
radio wave, microwave, infrared, ultraviolet, X-ray, gamma ray, visible light.
Who discovered that a changing magnetic field will induce a changing electric field and vice versa?
Heinrich Hertz
James Clerk Maxwell
Michael Faraday
Hans Christian Oersted
