All 4th Grade Science Resources
Example Questions
Example Question #1 : Observe How Energy Is Transferred By Light
How does light travel?
Light travels in wavy lines
Light travels in zig-zag lines
Light does not travel
Light travels in straight lines
Light travels in straight lines
Light travels in a straight line at an incredible speed of 186,000 miles per second. Light can be affected when it hits an object. Light travels as a wave. It does not need any matter or material to carry its energy along. Light exhibits characteristics of both waves and particles called photons.
Example Question #2 : Observe How Energy Is Transferred By Light
Which household item transfers energy through light?
A television
A cell phone
All of the answer choices are correct
An oven display screen
All of the answer choices are correct
Light travels in straight lines as a wave through the air. There is a small portion of the electromagnetic spectrum, which is comprised of visible light that we can see. Televisions, oven display screens, and cell phones all transfer energy through light. They use electricity or chemical energy that is transferred to light energy to generate visible light.
Example Question #1 : Observe How Energy Is Transferred By Light
Jillian's teacher asked her the best way to use light to generate power for household items. Which method would be the most successful?
Light cannot be used to generate power; power can only be used to create light
Shine a light on a generator to store electricity for the future
Using solar panels to capture the Sun's rays
Using a sundial to replace all clocks and watches
Using solar panels to capture the Sun's rays
When most people think about light, they think about how electrical currents or chemical energy are used to generate light. Light can make power for people to use in their houses every day. Many people are using solar panels to power their homes, heat their pools, and lower their dependence on electric companies and fossil fuels. Using the Sun's free rays, which do not cause pollution, and are easy to capture, is a great way to generate power for a single home or a whole town.
Example Question #4 : Observe How Energy Is Transferred By Light
What type of light energy does a television remote control use?
Ultraviolet light
X-rays
Infrared waves
Visible light
Infrared waves
The leading technology used in home remote controls is infrared (IR) light, which is invisible to the human eye. X-rays are used to take pictures inside the body of bones when looking for breaks or injuries. Ultraviolet light is the type of rays that the Sun puts off, and they can be harmful to your skin and eyes if left unprotected. Visible light is what the human eye can see on the electromagnetic spectrum.
Example Question #1 : Observe How Energy Is Transferred By Light
What is light?
Light is the movement of energy by vibrations through substances in the form of waves.
Light is the transfer of thermal energy.
Light is made up of waves of electromagnetic energy.
Light is the flow of electrons – tiny, negatively charged particles in atoms.
Light is made up of waves of electromagnetic energy.
Light is made up of waves of electromagnetic energy. It is the visible portion of the electromagnetic spectrum or electromagnetic waves that we can see. Visible light is only a tiny part of the electromagnetic spectrum. Light energy is the only form of energy we can see. Light from the sun helps plants grow and makes food for us to enjoy.
Example Question #1 : Observe How Energy Is Transferred By Light
The bouncing of light off an object is called what?
Refraction
Reflection
Reversal
Infrared
Reflection
Reflection is the term used to describe light bouncing off of an object. When the light touches an object that is smooth and shiny, it will reflect at the same angle at which it hit the surface of the object. Refraction describes the bending of a light ray when it enters a medium of a different speed. Infrared light refers to a type of light rather than the behavior of light.
Example Question #6 : Observe How Energy Is Transferred By Light
Which of the following objects would better allow light to pass through?
The mason jars would better allow light to pass through because they are clear. The sample of fluorite would not allow light to pass through because it is opaque. Opaque objects reemit light waves from the surface back to our eyes rather than allowing it to pass through the object.
Example Question #231 : 4th Grade Science
This picture is an example of which term?
Reflection
Absorption
Revision
Refraction
Refraction
This photo is an example of refraction. When light travels from water into the air, it changes direction because it slows down. Keep in mind that refraction is the bending of a light ray when it enters a medium of a different speed. Refraction occurring in water causes the object in the water to appear uneven or as if the portions in and out of the water are different in size.
Example Question #231 : 4th Grade Science
The light we see with our eyes is called _____________.
Sunlight
Ocular
Infrared light
Visible light
Visible light
We can view light with our naked eyes on a spectrum. This spectrum is called visible light. Visible light rays reflect off of the object that you are viewing, so your brain can then process and understand what you are seeing.
Example Question #231 : 4th Grade Science
What is white light?
All pastel colors mixed together
All visible colors at equal intensity
A shiny surface that reflects light
Anything that makes light
All visible colors at equal intensity
White light is colorless, ordinary daylight. It contains all of the wavelengths of visible light at an equal intensity at the same time, which creates beams of white light when focused on a single spot.
All 4th Grade Science Resources
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