Matter
The 4 states of matter are:
What are: solid, liquid, gas, and plasma?
an object at rest stays at rest, and an object in motion stays in motion unless acted upon by an external force.
What is: Newton's 1st Law of Motion?
The six simple machines:
What are: wheel and axle, lever, pulley, wedge, screw, and inclined plane (ramp)
Eureka!
What is: What Archimedes shouted while taking a bath and realizing how to solve the problem of the king's gold crown? Also means "I found it!"
A simple machine using a first class lever to throw objects
What is: a Catapult?
Changing between states involves adding or releasing __________
What is: Energy, usually some type of heat?
Another name for Newton's 1st Law of Motion
What is: the Law of Inertia?
There are _____ classes of levers
What is: 3?
a submerged object displaces a volume of fluid equal to its own volume
What is: Buoyancy?
The two strongest shapes
What are: the triangle and the arch?
This kind of change only affects properties (state, shape, size) without changing the chemical formula.
What is: Physical Change?
a falling apple spurred Sir Isaac Newton to realize ____________ is a universal, attractive force.
What is: Gravity?
the pivot point or support around which a lever rotates
What is: the fulcrum?
Archimedes invention that carries water uphill
What is: the Archimedes Screw?
To make a potato clock you need ____ and ____ type wires
What are: Copper and Zinc?
gas, color, temperature change are clues of _______ change
What is: Chemical Change?
The heavier the object, the more force is required to accelerate it.
What is: Newton's 2nd Law of Motion?
a machine consisting of two or more simple machines.
What is: a Compound Machine?
"Give me a lever long enough and a fulcrum on which to place it, and I shall move ________
What is: the world or the earth?
A __________ electric circuit is an uninterrupted, closed loop that allows electricity to flow from a power source, through conductors, to a load (like a bulb), and back to the source
What is: a complete or closed electrical circuit?
a measure of how tightly packed the tiny particles (matter) inside an object are. It describes how "heavy" something is compared to its size.
What is: Density?
Newton's 3rd Law of Motion
What is: for every action (force) in nature, there is an equal and opposite reaction?
a compound machine with many extra steps to achieve a simple task
What is: a Rube-Goldberg Machine?
Archimedes last words before he was killed by invading soldiers
What is: "Don't disturb my circles"?
Name 3 of the factors/variables affecting how far a stomp rocket travels
What are: Launch angle (30°, 45°, 60°, 90°)
Rocket mass (added paper clips)
Fin size/shape
Stomp strength (light vs hard)