Speed and velocity
Speed
This force rubs between two surfaces and slows things down.
friction.
what is the fastest thing in the universe?
Light.
This is the scientific term for the amount of matter or stuff that makes up an object.
mass
what are the three primary states of matter
Solid, Liquid, Gas
this measurement tells you both the speed of an object and the direction it is moving.
Velocity
This type of Friction slows things down as they fall down through the air.
air resistance.
What smooth object reflects light perfectly to show you your own image?
A mirror.
Unlike mass, which stays the same everywhere, this measurement changes depending on how much gravity is pulling on you.
Weight
What type of energy do we feel as warmth
Thermal energy
This is your speed at one exact moment, like the reading on a cars speedometer
instantaneous speed
This type of friction helps things move more easily on wheels.
rolling friction.
Sound is created by what kind of fast back and fourth movement?
If an astronaut travels from earth to the moon, this specific measurement will decrease because the Moon has less gravity.
Weight (their mass stays exactly the same)
What is the term for stored energy, like a stretched rubber band
Potential energy
This is your speed over a whole trip, found by dividing total distance by total time.
Average speed
This type of friction happens when solid objects slide over each other.
ex. like a sled on snow
sliding friction.
what material that is commonly used in wires, allows electricity to flow through it easily?
copper.
Scientists use a tool called a balance scale to measure mass, but they use this common household to measure weight.
A spring scale (or a bathroom scale)
What is the term for the energy of motion, like a rolling ball.
Kinetic energy
This is the acceleration of a car that goes from 0 to 20 m/s in 5 seconds
4 m/s
This type of friction keeps an object completely still when you try to push it.
static friction.
If you were to drop a bowling ball and a feather at the same time inside of a room with no air, which object will hit the ground first?
none of them will hit the ground first, they will hit the ground at the exact same time since gravity pulls all objects down at the same rate when there is no air resistance.
Newton
What state of matter has a fixed volume but changes its shape to match whatever container you pour it into?
Liquid