Physics-water
Physics-1
Physics-2
Physics-3
Physics-4
100
graphed on the x-axis
What is independent variable
100
graphed on the y-axis
What is dependent variable
100
tells if a graph is direct, inverse, slow, stopped, increasing, decreasing, constant
What is slope
100
List units for F = ma and isolate a
What is N = kg, m/s2 and F/m = a
100
What formula is used to find the weight of a 15 kg object
What is Fw = mg, mass X acceleration of gravity(10m/s2)
200
the final force left after all the opposing forces have been subtracted out, the sum or combination of all the forces acting on an object.
What is net force
200
force that pulls every mass toward every other mass. This force depends on the mass of objects and the distance between the objects.
What is Gravity
200
a force that resists all motion and acts in direct opposition to the applied force. It can change motion into heat (thermal) and or causes wear in machinery.
What is Friction
200
a force that depends on mass and gravity and is measured in newtons or pounds, Fw =mg
What is Weight
200
object’s tendency to resist changes in its state of motion, depends on mass (Newton's first Law)
What is Inertia
300
a fundamental property of matter measured in kg, directly related to inertia.
What is Mass
300
are combined forces that result in a zero net force on an object.
What is Balanced forces
300
a state in which the net force is zero, it does not mean there are no forces present!! It means all forces cancel each other out leaving zero net force. An object moving at a constant speed or at rest, has a net force of zero. If the net force is NOT zero, then the motion of an object will change, because a force is causing an acceleration.
What is Equilibrium
300
A cat taking off, turning or slowing down has _______
What is acceleration
300
the trade off a machine gives us for applying less force in different directions
What is distance the force is applied (the work is always the same)
400
bugs able to “walk on water”, plants get water from their roots up to their leaves and able to dissolve so many solutes, sets up hydrogen bonding, has a high boiling point-100 degrees C or 212 F, has high specific heat capacity
What are Unique properties of water
400
work input is always more than work output because of friction causes it to be less than 100%
What is efficiency
400
type of energy that depends on position or height of an object and the formula
What is Ep or potential energy, Ep = mgh=(kg)(m/s2)(m)=J
400
type of energy that depends on motion or velocity and the formula
What is kinetic energy, Ek = 1/2m(v2)
400
this only happens when an object is moved in the direction of the force pushing on it
What is work
500
The high electronegativity of oxygen(-) pulls the electrons to itself causing an unequal distribution of charge and its V shape makes it unsymmetrical
What is Why water is polar
500
If you throw a ball into the air with 20 J of energy, it will go up until it stops. How much energy does it have at the top of the throw? What law explains this? No friction
What is 20 J, law of conservation of energy tells us that the magnitude is equal
500
If a ball is thrown up in the air with 40 J and reaches the 1/2 way point how much Ep and Ek does it have? No friction
What is 50%-50%, or 20 J to 20 J
500
If a ball is thrown up in the air with 40 J and comes down just before it is caught how much Ep and Ek does it have? No friction
What is Ep = 0, Ek = 40 J, Law of conservation of energy
500
represents the slope of a speed verses time graph
What is acceleration
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