Chapters 1-7 Flashcards
The straight line distance between two points is known as …..
Displacement
What particle or particles of the atom’s nucleus determine the atomic number?
Number of protons
Displacement divided by time equals …..
Average velocity
When two or more vectors act simultaneously upon the same point, they are called ….. vectors.
Concurrent vectors
The state in which matter exists depends upon the object’s …..
Temperature
- the energy of the individual particles
What is defined as the pathway taken by a projectile?
Trajectory
What represents the maximum deviation from the mean, or the precision of a measuring instrument?
Tolerance
What type of vectors act at angles that are not equal to 0 degrees or multiples of 90 degrees?
Skewed vectors
A hydraulic device functions based on …..
Confined liquid to multiply force
Which of the following does not contribute to the rise of water in a small tube?
Adhesion, cohesion, and atmospheric pressure do contribute to the rise of water in a tube.
Any substance capable of flowing is called a(n)…..
Fluid
The attractive force between like molecules is called …..
Cohesion
The value of “g” in SI units, to three significant figures is ….. m/s^2.
9.80 m/s^2
Any quantity that has both magnitude and direction is called a(n)….,
Vector
The fact that lateral pressure decreases as a fluid’s velocity increases is called ….. principle.
Bernoulli’s principle
If an object is hurled upward in a vacuum, the total time it takes the object to return to its original level if the time of ascent is 4.0 is ….. s.
Total time back to start = 8.0 seconds
A simple picture that summarizes the various vectors acting on one point is called a(n)…..
Vector diagram
True/False
In a vacuum, a feather and a coin will fall at THE SAME rate of acceleration.
True
The shape of a container holding a liquid DOES affect the pressure on the bottom.
Does not
DUCTILITY is the ability of a metal to be drawn into a wire.
True
The velocity of a rock at the maximum height it attains after being hurled upward from the ground with an initial velocity of 34ft/s is O FT/S.
True
A projectile’s rate of fall is DEPENDENT UPON its horizontal motion.
Not dependent upon
A MANOMETER is a laboratory device which is used to measure the pressure of a gas sample.
True
The units of acceleration in the SI system are M/S.
m/s^2
DYNAMICS is the study of motion without regard to force, the cause of that motion.
Kinematics
The mathematical shape given to the pathway of a projectile is a HYPERBOLA.
Parabola
The Kelvin scale is an example of an ABSOLUTE scale.
True
Equations:
Determines the displacement of a falling object if its initial velocity and time of descent are known.
Formula on the back of my note card
Equation
Pythagorean theorem
a^2 + b^2 = c^2
Match each fundamental quantity with the correct SI unit
Mass Temperature Amount of substance Length Time
Mass - kilogram Temperature - kelvin Amount of substance- mole Length- meter Time- second
Match each SI prefix with the correct power of ten
milli- nano- micro- kilo- mega-
Milli- 10^-3 Nano- 10^-9 Micro- 10^-6 Kilo- 10^3 Mega-10^6
Short answer
What two qualities must be stated in order to specify a velocity?
To specify the velocity of an object you have to know the speed and single stated direction of the object.
Contrast rectilinear motion and curvilinear motion.
Rectilinear motion is motion in a straight line; whereas curvilinear motion is motion that follows a curving line.
Define mass and weight, and describe what effects Gravity has on each.
Mass represents how much inertia an object has, or how much force is required to change the object’s state of motion. Mass is not affected by changes in gravity or location because it is an intrinsic property of matter.
Weight represents the amount of force the earth’s gravity exerts on an object’s mass. Weight is affected by gravity because the closer you are to the center of the earth, the stronger the gravitational pull on an object is; and likewise, the farther away an object is from earth, the weaker and less pull earth’s gravity has on that object.
