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Physics

Within Science

Lights and gauges with display screens cover the walls. Illustration of energetic reaction drawn on top. Caption: it releases a lot of energy in the form of heat.

Still image from: 2025 Moon Phase and Libration--Northern Hemisphere

Still image from: 2025 Moon Phase and Libration--Southern Hemisphere

Image of people raising their hands in the air at the top of a wooden roller coaster at Six Flags.

Crash test dummy in the driver's seat of a vehicle. Caption: [tires squeal]

Large plane taxiing on a runway. Caption: Propulsion is the power that moves something,

Cartoon portrayal of Albert Einstein in a lab coat points to a chalkboard that says, “Albert Einstein.”

Still image from: All the Answers: Gravity, Black Holes, Rainbows

Still image from: All the Answers: Solar Eclipses, Microwaves, Death Valley

Still image from: All the Answers: The World Wide Web, the Great Wall, Horsepower

Person speaking. Caption: So a nanometer would be ten to the minus nine meters.

Person speaking. Caption: Nanoparticles have been used in sunscreens

Person speaking. Caption: and work on it to manage those risks.

Person speaking. Caption: We can apply an electric field or magnetic fields to them.

Person speaking. Caption: about nanobots replicating and taking over the world.

Person speaking. Caption: between one and one hundred nanometers.

Person speaking and standing next to a poster board with "Control of matter at the nanoscale" surrounded by logos from different organizations. Caption: of matter at the atomic and molecular level.

Person speaking. Caption: used for both doing diagnostics as well as theranostics.

A scientist sits and talks. Caption: So when you heat it up, it melts.

A galaxy fades out. Caption: The original galaxy would be gone.

A huge mass of hot gas swirls into a star. Caption: that swirls onto the massive star.

Illustration of the earth revolving the sun. Caption: As the earth moved around the sun,

illustration of asteroids revolving the sun and other planets. Caption: Asteroids, though, move across the sky at different rates.

Illustration of a wave striking an atom. Caption: The shortest wavelength light are gamma rays,

Illustration of a woman talking to the Alien M51. Caption: You've got to move the earth back where it belongs.

The celestial image of a red starry surface. Caption: Where new stars are born,

Animation of two galaxies colliding. Caption: they smash together with tremendous force.

Image of Andromeda galaxy. Caption: is about 160,000 light years away.

An image of the outer space. Caption: it's eventually blocks out all visible light.

An Illustration depicts the three positions of the universe. The difference between the first two and the last two positions is labeled, + 2 units. The difference between the first and last positions is labeled, + 4 units. Caption: the more the expansion pushes them apart.

An electromagnetic spectrum with a bright star over the infrared range. Caption: Hotter objects glow in visible light.

An illustration depicts the spiral structure of a galaxy. Caption: Many galaxies have a spiral structure,

Sun and a red planet in outer space. Caption: we can tell what comprises the atmospheres.

Irregularly shaped gaseous shape with bright stars glowing around and behind it. Caption: with the potential to explore our universe

Multicolored streaks of light fading towards a single point in the center of the screen. Caption: Matter is made of up of tiny particles called atoms.

Hollow glass tube with roughly diamond shaped object in the center surrounded by glowing light. Caption: you get the characteristic color of this purplish-blue.

Title text reads, “Atoms for Kids,” against a white background.

A man and woman have donned helmets and are about to enter a door. Caption: Richard, this is the bending fatigue test.

A man and woman have donned helmets and are on a x ladder. Caption: That's the machine that turns it into slabs of steel.

A board with figures and a heavy object in the center bends downward in the center. Caption: You see that as the load increases, the bridge bends,

A board with interlocking triangular cutout supports running parallel to the board has figures on it and a heavy object in the center. The outermost edges of the triangular supports have buckled. Caption: The outer segments of the truss are the first to break.

Animation of an area near the Chernobyl nuclear power plant. Leafless trees, homes, and power lines beneath an overcast sky. Caption. Everything is polluted and highly radioactive.

Seen from above, a large cylindrical tube with a hatch in a pit surrounded by wooden supports and metal bars. Caption: model representations of sewer and river systems.

Computer screen displaying a grid-like diagram mapping connections between multiple points. Caption: and then we can apply loading to this structure,

Two glow sticks immersed in separate containers of liquid. One stick is glowing much brighter than the other. Caption: The one in hot water gets brighter

Measurement device placed on a circuit powered by three AA batteries. Device shows 0.05 on the display. Caption: (Adabot) zero point zero five amperes.

Person speaking. Illustration of a battery. Caption: A battery uses chemistry to create electricity.

Illustration of a circuit board with a tubular object bridging two paths. Caption: In this circuit, I'm filtering power.

Rectangular diagram with objects moving clockwise around the perimeter. Caption: Electrons flow through the diode in one direction,

Machine labelled DS1052E Digital Oscilloscope with a wavy line across the screen and complex controls. Caption: We measure frequency in units called hertz.

Person in a workshop holding a power cord with three prongs. Caption: The answer is these three-prong cables are grounded.

Person and a robot in a workshop with a laptop in front of them. Caption: Hertz is how many times something happens per second.

Closeup of a complex circuit board with capacitors and other structures. Caption: But ICs, well -- ICs can have lots of connections.

Joules = force x distance. Caption: we multiply force and distance

Robot and three LEDs. Caption: LEDs make much more sense now.

Robot and bird with walkie-talkies in a workshop. Caption: It's not audio noise, it's electrical noise.

An animation of a bird. Caption: Have you heard of the scientist, Georg Simon Ohm?

An illustration depicts a transistor, resistor, and an L E D. Caption: P C B stands for, printed circuit board.

An illustration depicts a robot talking to a bird. Caption: This one is my favorite; it's quartz.

Large puffy clouds across an open expanse of sky. Caption: (narrator) And from clouds, we get precipitation,

Nighttime view of a city skyline. A beam of light shines forward from a building tower. Text on image reads, "Core Physics. Classical Physics."

A nuclear bomb explosion with a bright yellow mushroom cloud above. Text on image reads, "Core Physics. Modern Physics."

Still image from: Crash Course Chemistry: Electrochemistry

Still image from: Crash Course Kids Physical Science: Astronaut Experiment

Still image from: Crash Course Kids Physical Science: Danger Falling Objects

Still image from: Crash Course Kids Physical Science: Hunting for Properties

Still image from: Crash Course Kids Physical Science: Material World

Still image from: Crash Course Kids Physical Science: Oobleck and Non-Newtonian Fluids

Still image from: Crash Course Kids Physical Science: Organizing Properties

Still image from: Crash Course Kids Physical Science: Particles of Your World

Still image from: Crash Course Kids Physical Science: The Great Picnic Mix Up

Still image from: Crash Course Kids Physical Science: What's Matter

Still image from: Crash Course Kids Physical Science: What's My Property

Still image from: Crash Course Kids: Normal Stuff in Not-So-Normal Places

Still image from: Crash Course Kids: Wood, Water, and Properties

A roughly cube shaped space craft with a communications dish and two large rectangular solar panels flying through space. Caption: It wouldn't be possible without ion propulsion.

Cartoon of three people and bird looking at a piece of paper. Caption: It says, "Meet me at Merlin's Maze."

Shovel digging into gravel. Spanish captions.

Glass beaker with clear liquid. Spanish captions.

Person holding a paper cup with rubber bands and binder clips wrapped around a tubular object. Caption: (Nate) There's lots of ways of getting the straw into the potato.

Cartoon character talking to a small flying insect. Caption: (Johan) Some animals' habitats are rivers, lakes, and ponds.

Cartoon character. Caption: We're going to Johan's world, yippee!

Person in lab coat, gloves, and mask moving a large metal machine that is place above other complex metal machinery. Caption: Also key is state-of-the-art optical and laser technology:

A circuit being powered by a large battery and causing a lightbulb to illuminate. Spanish captions.

Behind the headline, “Electricity,” we see electrical waves moving through illuminated power lines.

City sidewalk with well-lit buildings lining one side. Spanish captions.

Industrial claw with giant magnet descending on a pile of trash. Caption: Pass an electric current through the coil,

Still image from: Emily's Science Lab: Balancing Act With a Broom Stick

Still image from: Emily's Science Lab: Cookie Experiment

Still image from: Emily's Science Lab: Create Your Own Hovercraft - UFO Science Experiment

Still image from: Emily's Science Lab: Egg in a Bottle - Air Pressure Experiment

Still image from: Emily's Science Lab: Exploding Sandwich Bag Experiment

Still image from: Emily's Science Lab: Exploding Witches Brew

Still image from: Emily's Science Lab: Floating Soap - Density Experiment

Still image from: Emily's Science Lab: Flying Ping Pong Ball Experiment

Still image from: Emily's Science Lab: How to Make a Solar Oven

Still image from: Emily's Science Lab: Make a Homopolar Motor - Spinning Copper Wire Experiment

Still image from: Emily's Science Lab: Oobleck

Still image from: Emily's Science Lab: Soda Can Rocket - Physics Experiment

Still image from: Emily's Science Lab: Space Slime - Magnetic Slime Experiment

Still image from: Emily's Science Lab: Waterproof Cocoa Experiment

Still image from: Emily's Science Lab: Zombie Ping Pong Ball Experiment

A lit match. Caption: Energy comes in many different forms.

Inside of industrial p0lant showing metal vats with complex metal tubing. Caption: We're liquefying the sugars out of the biomass.

Closeup of red-hot charcoal on a grill. Caption: creating a fuel source that works but has problems.

Gently arching bridge over a large body of water. Caption: but the Skye Bridge spans the equivalent distance

A lit match. Spanish captions.

Mist in the air. Caption: It's called water vapor.

A person playing the piano. Spanish captions.

Drawing of the sun and a person with a rock in between them obscuring the rays of light from the sun. Caption: Theoretically, observers would never know it's there.

Cartoon owl. Caption: I can show you a treasure.

Person riding a bike and measuring 14.5 mph. Caption: Provided that the speed is kept constant,

People riding on a wagon pulled by two horses. Caption: Two horses add more force or pull the wagon.

Open aluminum can. Caption: This is because gas is rushing from an area of high pressure

Turbulent water moving from an area of higher elevation to lower elevation. Caption: This is due to the fact that water continually cycles

A large cylindrical machine set into the floor with various equipment attached to the round openings at either end. A walkway surrounds the mass of equipment. Caption: Gas turbines earn their excellent worldwide reputation.

Computer screen with a closeup image of an area of a person's body. Corresponding area is outlined on a diagram of the body. Caption: used to examine suspect skin conditions.

Gentle waterfall. Spanish captions.

Still image from: Gravity for Kids

Cartoon rocket with a stream of exhaust behind it. Caption: And that force pushes the rocket forward.

Glass beaker with a hand holding a clear rod to the bottom of the beaker. A bright light emanates from the bottom of the beaker. Caption: and moved into the modern age of chemistry.

Round transparent object magnifying a section of a cityscape. Caption: could make distant objects appear closer.

Illustration of objects moving from a chamber with disk shaped spiny structures to an empty chamber. Caption: Here, we force bacteria to move electrons

Hillside covered in solar panels. Caption: collecting the sun's energy

Illustration of a windmill 100 meters tall receiving air current next to a much taller structure receiving a much larger air current. Caption: The beauty of wind turbines is that they're 100% clean.

Fine white tubes grow in the same direction. Caption: and carbon nanotubes grow like blades of grass.

Cartoon characters talking. Caption: We need something that can make our dingy float.

Swirl of red and yellow colors signifying waves of heat.

Thermometer in a beaker of water reading almost 100 degrees. Spanish captions.

Thin tubular object protruding from a machine casing descends perpendicular to a piece of wood laying horizontally below it. Caption: That's right; he's using a power tool called a drill.

A space observatory. Caption: The telescopes made images of the region.

Metal shipping containers on the deck of a cargo ship. Caption: The ship's metal is more dense than water,

Person speaking. Behind them is a graph, mathematical equations, and writing. Caption: and we want to apply that knowledge to robots.

Black line drawing on light blue background. Grimacing fish points up towards broken chain and extraction equipment. Title card reads, "Cracking Hydrocarbon Chains and Environmental Concerns."

Closeup of 2 plants in white tanks filled with water. Metal pipes curve over edge of tanks in a greenhouse setting.

A diagram of a longitudinal wave. Waves transport energy.

Illustration of a bird and a first-generation plane with ribbed wings. Caption: They become focused on flight.

Person with a blue cylindrical container in their hands. Caption: can also be released as a result of chemical reactions.

Person placing a magnet to one side of the path directly in front of a ramp. A dotted line projects the path of an object that will move from the ramp and curve toward the magnet. Caption: Let's place the magnet somewhere to alter the marble's course.

Rollercoaster with cars in the apex of loop. Spanish captions.

Diagram of the wavelengths of light. The portion of the spectrum visible to the human eye is highlighted and it shows violet, indigo, blue, green, yellow, orange, and red. 7.5x10*14hz - 4.3x10*14hz. Spanish captions.

Diagram of a circuit. Spanish captions.

Person on stage playing a guitar with a machine measuring the vibration coming out of a speaker. Spanish captions.

Illustration of a soccer ball with lines moving away at 90, 0, and 315 degrees. Spanish captions.

Man sits and talks to us in a room with a bookcase with books and different knick-knacks on the shelf such as a Gundam toy, a mini globe, and a space rocket.

Diagram. A little human figure with two dotted lines and two crisscrossed lines that represent light. In the middle of the lines is an almond shape that is labeled, “Lens.” The dotted lines lead up to a dark vertical line that is labeled, “Sensor/Retina.” Next to the dark line is an upside down human next to a right side up human that is labeled, “What you see.” Text, “Bending Light.”

Sixteen eyeballs, each with different eye color. Caption: Martin-Schultz scale.

Many hot air balloons taking off into the sky.

A graph plots pressure in Pascal’s versus temperature in degrees Celsius. The horizontal axis is marked at negative 5, 0, and 100. The vertical axis ranges from 1 kilo Pascal to 100 Mega Pascal’s in increments of exponents of 10. At 1 atmospheric pressure water is in solid ice at negative 5 degrees to 0 degrees, in liquid state from 0 degrees to 100 degrees Celsius, and in vapor form above 100 degrees Celsius.

Digital illustration of an underground tunnel that goes from San Francisco to New York City.

A photo depicts many branches of a large tree.

An astronaut Don Pettit talks to host Joe Hanson. A rocket is seen in the background.

Cartoon of a person straining to push a large log. Caption: You could supply the energy to push the log.

A C, G, I image of room with a floor that lights up. A red fire truck toy abuts a dark gray kettlebell weight marked, "Heavy." Behind that, a light blue semi-truck toy abuts a wooden car frame with another weight resting on top.

Complex matrix of spherical objects and a thermometer showing 0 degrees. Caption: and it changes from the liquid to a solid.

Parallel strings with the top one vibrating. Caption: our fingers cause the strings to move or vibrate.

Cartoon children on a playground. Caption: But kids like us play with simple machines every day.

Slide shows yellow text in a white box against a sky blue background that reads, "Light."

Light waves emitting from a lightbulb. Spanish captions.

Bright glowing sphere against a blue sky. Caption: Ultraviolet technology is useful for some environmental issues,

Still image from: LIGO: The Way the Universe Is, I Think

Person floating in a chamber with switches, buttons, and lights on the walls. Caption: One of the fun things about flying in space

Longitudinal waves through three mediums solid, water, and air.

Boat on the water. Caption: The bamboo battens also held the sail taut,

Still image from: Magnets and Electricity STEM

Rectangular objects with one end labeled N and the other labeled O emitting half-ovals of wavelengths. Caption: or push each other away.

Bright blue analog kilogram food scale against a white background. The red pointer is at 600 kilograms.

Closeup of water in a glass. Caption: In boiling, vaporization takes place

Still image from: Mercury for Kids

Puffy white clouds. Cumulus clouds. Caption: Cumulus, Latin for "heap,"

Complex matrix of spherical objects next to a thermometer reading slightly above zero degrees. Caption: A low temperature indicates that the particles

Person standing on a round platform holding a wheel. Caption: so the question is, "Why am I spinning?"

People in a lab setting, filming an explosion that is occurring in a container. Caption: It dissipated the energy better and didn't explode.

Illustration of water with an arrow indicating a current moving through the water parallel to the surface. Caption: There are two types of marine currents.

Map of the Eurasian continent and pacific islands, as well as the Indian and Pacific oceans. Caption: (narrator) A monsoon is the name for a meeting of winds

Illustration of trees growing on a mountain. Caption: Some of these forests grow on mountains.

Illustration of low, round huts with a person walking through them. Caption: Arriving home, Moko saw that the moon was there in the sky.

Illustration of a rainbow against the sky. Caption: What a surprise, the rainbow was back!

Illustration of cold air near the ground and warm air at higher elevation. Caption: Winds are born between these air zones.

Illustration of clouds in the sky. Caption: (narrator) Thunderstorms occur when it's hot and humid near the ground,

Illustration of a bird's head over a landscape with a winding river and some hills. Caption: you'll arrive back where you started, having circled it all."

Illustration of brightly colored coral and plant life with tropical fish swimming through it. Caption: Coral reefs look like giant, underwater gardens

Illustration of the Sun and planets closest to it, including Earth, shedding bits of bright light. Caption: Solar wind is very hot and blows across all the planets

Illustration of the Sun, moon, and Earth. Caption: and the moon circles around the earth.

Illustration of water with a circular shape outlined beneath the surface. Caption: (narrator) Blue holes are deep, underwater wells.

Illustration of a map of the world. Caption: Cenotes are found in North America and Central America,

Illustration of a barren landscape with rain falling. Caption (narrator) In tropical climates, there are only two seasons:

Illustration of water running up against a rocky cliff. Caption: (narrator) As you've probably noticed, ocean water is salty.

Illustration of sand with an arrow moving from the sky across the image. Caption: This is called quicksand.

Image of a layer of ice above liquid water. Caption: This is called sea ice.

Illustration of a strong wind blowing leaves across a hilly landscape. Caption: The stronger the wind, the louder the sound.

Illustration of a large amount of snow sliding down a hillside. Caption: It's not a very rapid avalanche, but it's very solid.

Illustration of a person on a hilltop facing a series of bigger mountains. Caption: (narrator) This phenomenon is called an echo.

Illustration of a few trees as seen through extremely thick snow. Caption: During a blizzard, winds can exceed 40 kilometers per hour.

Illustration of heavy rain and a dark sky with a large funnel shaped cloud over water. Caption: (narrator) Cyclones, hurricanes, and typhoons are harsh

Illustration of an island breaking the water line with a larger volume of the island under water. Caption: These are called volcanic islands.

The surface of the moon in relief against the black background of space. Caption: volcanic activity also ceased as the moon's interior cooled.

Person on skis in a crouched position. Motion: change in position. Caption: This skier was in motion.

Two people riding horses while someone walks beside them. Caption: And how do things move?

Slide shows smeared equations written in chalk on a backdrop to text that reads, "Newton's First Law."