Show:
Newton's 1st law
Newton's 2nd Law
Newton's 3rd law
Potluck
Science Fair
100
It can be a push or a pull
What is a force?
100
Gravitational force exerted on an object
What is Weight?
100
force supplied by rocket engines
What is thrust?
100
Bromine and Mercury
What are the two elements that are liquids at room temperature?
100
factors that can be changed in an experiment
What is variables?
200
The force that stops all objects in motion.
What is friction
200
The two units of force
What is 1 newton = 1 kg x m/s2
200
when only the force of gravity is acting upon an object
What is free fall?
200
The family name for group 18 on the Periodic Table
What is the Noble Gases?
200
variables that are not changed in an experiment
What are contants?
300
the attraction between atoms on two surfaces that are in contact.
What is static friction?
300
combination of all the forces acting on an object
What is net force?
300
when birds fly, they flap their wings downward and back, the reaction force is ______________
What is air pushing up and forward
300
Protium, Deuterium, and Tritium
What are the isotopes of Hydrogen?
300
the variable that changes as a result of the change in one variable
What is dependent variable
400
Friction that slows down a person on skis.
What is sliding friction?
400
caused when net force is applied in the direction that the object is already moving
What is positive acceleration?
400
In Newton's third law of motion forces act in_________.
What is equal and opposite pairs.
400
The number of Neutrons in Gold (Au)
What is 118 neutrons?
400
the day of the week and date of the St. Joseph Science Fair.
What is Wednesday, April 21, 2010
500
the scientist whose ideas influenced Newton to come up with his laws of motion
Who is Galleleo?
500
when air resistance balances the force of gravity
What is terminal velocity?
500
point in an object where it seems all of the weight is centered.
What is center of mass?
500
The number of electrons in Lead (Pb)
What is 82 electrons?
500
a reasonable and educated answer and also a statement that can be tested.
What is a hypothesis?