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Worksheets𝕎𝕒𝕧𝕖 𝔹𝕖𝕙𝕒𝕧𝕚𝕠𝕣 (Pre)
Total questions: 15
Worksheet time: 8mins
Scientists use electromagnetic waves to detect supernovas. Why are electromagnetic waves used instead of sound waves?
Electromagnetic waves travel slower than sound waves.
Electromagnetic waves can travel in vacuums.
Electromagnetic waves are created by physical vibrations.
Electromagnetic waves cannot be absorbed.
Which of the following is a true statement about waves?
Waves can transfer energy when they interact with matter.
All waves travel longitudinally and compressionally at the same time.
All waves require a medium through which they can travel.
Waves are never affected when they interact with matter.
Sunlight shining through a clear window hits Jeremy's face while he does his homework. He uses a large wooden block to cover the window. What do the wooden block and the clear window demonstrate?
Visible light can be completely absorbed by all materials.
Visible light can be completely reflected by all materials.
Visible light can be transmitted only through certain materials.
Visible light can be transmitted through all materials.
Judging from the diagram, which of the following statements is true?
A sound wave's wavelength shortens when it travels from cold air into warm air.
Sound travels at the same speed through both cold and warm air.
Sound travels faster through cold air than through warm air.
Sound travels faster through warm air than through cold air.
Sam is standing in an empty auditorium. He yells and hears his voice echo. What is happening to the sound to cause this echo?
distribution of the sound waves through the auditorium
transmission of the sound waves within his ears
absorption of the sound waves by his voice
reflection of sound waves off the walls
When the light source is turned on, the scientist observes that no light is detected on the far side of the substance. What is the best interpretation for this observation?
The light was both reflected and transmitted by the substance.
The light was both absorbed and reflected by the substance.
The light was either reflected or transmitted by the substance.
The light was either absorbed or reflected by the substance.
What scientific property is illustrated by these images?
The angles at which both the beam and the waves reflect are always perfectly straight.
The exact angle at which the beam and wave strike the surface is the same angle at which they are reflected.
There is no way of predicting the angle at which a wave is reflected.
The reflected beam and wave possess more electrical energy as they've each impacted an object.
How is sound absorption different than light absorption?
Sound absorption depends more on the thickness of a material than its color.
Sound waves cannot be absorbed due to their structure.
Sound absorption depends primarily on the distance the wave travels before it is absorbed.
Sound absorption happens much faster than light absorption.
What happens to the sound wave when it passes from the concrete into the mud?
Its direction remains the same but speed changes.
Its direction changes but speed remains the same.
Its direction and speed changes.
Its direction and speed remains the same.
A whale is swimming in the ocean. It communicates with another whale by sending out a sound. Which of the following best describes how the sound gets to the other whale?
The sound is reflected in the water before it gets to the other whale.
The sound is transmitted through water until it reaches the other whale.
All of the sound is diffused in the water until only a faint sound reaches the other whale.
All of the sound absorbed by water changes to heat before getting to the other whale.
Sunlight shining through a clear window hits Jeremy's face while he does his homework. He uses a large wooden block to cover the window. What do the wooden block and the clear window demonstrate?
Visible light can be completely reflected by all materials.
Visible light can be transmitted through all materials.
Visible light can be completely absorbed by all materials.
Visible light can be transmitted only through certain materials.
The band room at school has soundproof walls. These walls prevent sound from disturbing other students who are outside the band room in other classrooms. What happens to the sound in the band room when the students are practicing their music?
The sound is transmitted through the ceiling out of the roof.
The sound is reflected back to the instruments.
The sound is diffused through the air vents to the outside.
The sound is absorbed into the material on the walls.
Scenes of outer space explosions in movies are often accompanied by a loud sound. Which of the following best describes why a scene like this is not realistic?
Sound needs a medium through which it can be transmitted.
Sound can travel through a vacuum.
Sound is not produced when something explodes in air.
Sound cannot produce vibrations.
Light from the Sun transfers solar energy to the Earth system. Sunlight travels to Earth as _______ waves.
water
seismic
sound
electromagnetic
Light travels in a straight line when it ____________________.
passes from one medium to another
is absorbed by an object
reflects off of an object’s surface
travels through a uniform medium
