Laws
an object moving at a constant velocity keeps moving at that velocity unless an unbalanced force acts on it .
What is Newton's 1st Law
Emily pushes her shopping cart with a force of 20.0 N for a distance of 4.0 m . How much work does Emily do on the cart in Joules ?
What is 80 J
How many valence electrons are there in Barium ?
What is +2
Who created the laws of motion ?
What is Sir Isaac Newton
What year was the Law of Motion created ?
What is 1987
states that when one object exerts a force on a second object , the second object exerts a force on the first object that is equal in strength and in the opposite direction .
What is Newton's 3rd Law
A car moves at a rate of 15.0 meters per second . Its speed decreased to 3.0 meters per second . It takes 4 seconds for the speed to decreases . What is the magnitude of the deceleration of the car ?
What is 3.0 m/s2
Why is group 18 non reactive ?
What is because it is stable
Whos law stated the pressure of a given amount of gas held at constant volume is directly proportional to the Kelvin temperature
What is Gay-Lussac
What year was the periodic table created ?
What is 1869
states that the current in a circuit equals the voltage difference divided by the resistance
What is Ohms Law
An object is accelerating from rest to a speed of 25 meters per second in 10 seconds. What is the acceleration of the object, to the nearest tenth of m/s2?
What is 2.5
Which period of the Periodic Table is comprised entirely of elements with no known stable isotopes?
What is 7
Whos created the law stating " the pressure (p) of a given quantity of gas varies inversely with its volume (v) at constant temperature "
What is Robert Boyle
What year was the ph table created ?
What is 1909
states that the mass of all substances present before a chemical equals the mass of all the substances remaining after the change .
What is Law of Conservation of Mass
Find the energy (Joules/ j) M=40kg V=1m/s KE= 1/2mv^2
What is J= 25
What is the oxidation of calcium ?
What is +2
Who created the periodic table ?
What is Dmitri Mendeleev
What year was Ohms law discovered ?
What is 1827
states that the temperature and volume of a gas are related such that , if the pressure is constant , an increase in temperature will produce a proportionate increase in the volume .
What is Charles Law
Balance this equation: _CO2+_ H2O --> _CCH12O6+ _O2
What is 6,6,1,6
Two elements that form ions with the same charge as Mg (Magnesium) ions.
What is Beryllium (Be) and Potassium (K)
Who created the pH scale ?
What is Søren Sørensen
In B.C , when were atoms discovered ?