Font size
WorksheetsEM Spectrum and Mirrors
Total questions: 20
Worksheet time: 11mins
A changing magnetic field creates a changing _______ field.
electric field
magnetic field
both electric and magnetic field
neither electric or magnetic field
Which of the following is CORRECTLY arranged from shortest to longest wavelength?
x-ray, ultraviolet rays, infrared waves, microwaves
gamma rays, ultraviolet rays, radio waves, microwaves
radio waves, microwaves, infrared waves, visible light
infrared waves, microwaves, radio waves, ultraviolet rays
Which of the following is arranged correctly according to INCREASING frequency?
x-ray, microwaves, visible light, radio waves
microwave, visible light, ultraviolet waves, gamma rays
gamma rays, ultraviolet waves, visible light, microwaves
radio waves, visible light, microwaves, x-ray
It has the smallest wavelength and the most energy in the electromagnetic spectrum.
gamma rays
microwaves
x-rays
radio waves
Which type of electromagnetic wave is used in magnetic resonance imaging (MRI)?
x-rays
radio waves
microwaves
gamma rays
Heated objects produce light through a process known as _____.
bioluminescence
phosphorescence
luminescence
incandescence
What is common among electromagnetic waves?
frequency
wavelength
energy
speed in vacuum
What is the relationship between frequency and energy in an electromagnetic spectrum?
directly proportional
sometimes directly proportional and sometimes inversely proportional
inversely proportional
not related at all
A high-energy EM wave which is enough to pull electrons from an orbit.
ionizing radiation
non-ionizing radiation
Which part of the spherical mirror is the length between the vertex and the focal point?
focal length
radius of curvature
focus
center of curvature
In the law of reflection, the angle of incidence is ________ the angle of reflection.
equal to
less than
greater then
not related to
What is the medical term for farsightedness?
hyperopia
myopia
astigmatism
presbyopia
You are standing a meter in front of a plane mirror. Which of the following correctly describes the image formed?
virtual
real
smaller
inverted
You want to see an enlarged reflection of your face. Which one best serves your aim?
convex mirror
concave mirror
plane mirror
magnifying glass
What is the speed of light in a vacuum?
3.0 x 108 m/s
3.0 x 10-8 m/s
3.0 x 108 m/s2
3.0 x 10-8 m/s
Which of the following correctly describes an image with a magnification of 0.5?
The size of the image is half the size of the object.
The size of the object is half the size of the image.
The distance of the object from the lens is equal to the image distance from the lens
The distance of the object from the lens is equal to two times the image distance from the lens.
Which of the following characteristics DOES NOT describe the image formed by the mirror?
real
upright
smaller
located between V and F
What type of image is created in converging (convex) lenses?
real
virtual
either real or virtual
neither real nor virtual
You cannot see your reflection on a piece of paper while doing your individual work. What explains this phenomenon?
Regular reflection of light happens on the surface of the paper.
Irregular reflection of light happens on the surface of the paper.
Light is reflected in the same and parallel directions.
The light that hits the surface of the paper is refracted.
Which of the following correctly describe/s the image? (Check all that applies.)
A light ray travels from air to water.
The speed of light decreases as it enters the second medium.
The speed of light increases as it enters the second medium.
The angle of incidence is greater than the angle of refraction.
The angle of incidence is less than the angle of refraction.
