Motion
This is the distance an object travels divided by the time it takes to get there.
Speed!
(Because speed is simply how fast you cover a distance, calculated as distance divided by time).
Momentum depends on two things: the object’s velocity and what property of matter?
Mass! (Because momentum is "mass in motion," so the heavier an object is and the faster it moves, the more momentum it has.)
In this type of circuit, electricity only has one single path to follow.
A series circuit!
(Because "series" means things follow one after another in a single line, like a line of elephants holding tails.)
This is the amount of heat energy needed to raise the temperature of a substance.
Heat capacity (Because it represents a material's "capacity" or ability to hold onto heat energy before its temperature actually changes.)
This is the only part of the light spectrum that human eyes can actually see.
Visible Light. (Because our eyes are only evolved to detect this specific band of wavelengths, which contains all the colors from red to violet.)
This term describes a change in velocity over time, such as speeding up, slowing down, or changing direction.
Acceleration!
(Because acceleration in physics means any change in how fast or in what direction you are moving.)
If a 5 kg object is moving at 2 m/s how much momentum is there?
10 kg x m/s
(Because you multiply the mass of 5 kg by the velocity of 2 m/s to get 10.)
This is the flow of electric charge through a wire, measured in Amps.
Current. (Because just like a river current is the flow of water, an electrical current is the flow of moving electrons.)
Water takes a long time to heat up and cool down because its specific heat capacity is very ______.
High! (Because a high capacity means it requires a massive amount of heat energy just to change its temperature by one degree.)
Out of all the colors of the rainbow, this color has the longest wavelength and lowest energy.
Red! (Because on the spectrum, red light stretches out the furthest, and longer waves carry less energy than short, choppy waves.)
If a runner goes 20 meters in 2 seconds, what is their average speed?
10 meters per second (10 m/s).
(Because 20 meters divided by 2 seconds equals 10.)
This physics law states that the total momentum before a collision is equal to the total momentum after a collision, as long as no outside forces act on it.
The Law of Conservation of Momentum.
(Because "conservation" means nothing is lost or destroyed; the momentum just transfers from one object to another.)
In this type of circuit, electricity has multiple paths to follow, so if one bulb goes out, the others stay on.
A Parallel circuit. (Because the wires run side-by-side or parallel to each other, giving the electricity alternative routes to take.)
Heat always moves naturally from an object that is ______ to an object that is ______.
hotter to colder (Because fast-moving, hot particles naturally bump into slower, cold particles and pass their energy over to them.)
These invisible waves from the sun are what give you a sunburn if you do not wear sunscreen
Ultraviolet (UV) light. (Because "ultra" means beyond; these waves are just past violet light and carry enough energy to damage skin cells.)
What is the key difference between speed and velocity.
Direction! ((Velocity includes direction, speed does not).
Between a heavy truck and a small car driving at the exact same speed, this one has more momentum.
A heavy truck!
(Because the truck has a much bigger mass, and a bigger mass creates more momentum when speeds are equal.)
what is the word that describes how much a material slows down or fights against the flow of electricity.
Resistance! (Because to "resist" means to fight back against something; high resistance makes it harder for electricity to move.)
What is the standard unit of measurement used for heat and energy in science.
Joule (J).
(Because the Joule is the official metric system unit used to measure all types of energy and work.)
Doctors use these high-energy waves to see through your skin and take pictures of your bones.
X-Rays. (Because X-rays have enough energy to pass right through soft skin, but they get blocked by dense things like bones.)
On a distance-time graph, a perfectly flat, horizontal line indicates that the object is doing this.
Standing Still (at rest).
(Because as time goes on, the distance number isn't changing or going up, meaning the object has stopped.)
Airbags protect you in a crash by slowing you down over a longer amount of time, which decreases ____?
Force!
(Because stopping slowly spreads out the energy, meaning your body takes a much softer, safer hit.)
A material like copper that lets electricity flow through it easily is called a conductor. A material like rubber that blocks electricity is called ____?
An insulator. (Because insulators have high resistance and tightly hold onto their electrons, keeping electricity from passing through.)
If you put a metal spoon and a wooden spoon in hot water, the metal spoon gets hot much faster because it has a ______ heat capacity than wood.
Lower. (Because a low heat capacity means it takes very little heat energy to raise its temperature, causing it to spike quickly.)
These are the lowest-energy waves on the spectrum, and we use them to send signals to our TVs and cell phones.
Radio Waves. (Because they have the longest, weakest wavelengths, making them completely safe to constantly pass through the air around us.)