Section 1
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-------- was one of the first scientists to base conclusions on experimental evidence.
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Date created
Mar 1, 2020
Cards (79)
Section 1
(50 cards)
-------- was one of the first scientists to base conclusions on experimental evidence.
Galileo
------ is the property of an object which causes it to resist all changes in its state of motion.
Inertia
The rate of change of velocity is called ----
acceleration
Two objects of equal mass approach each other head-on with the same speed. The total momentum of the system before the collision takes place equals -----
zero
A change in the state of motion of an object is caused by an ----
unbalanced force
A --- quantity is completely described by its magnitude
scalar
The -------- method of measuring mass is easier and more widely used than the inertial method.
Gravitational
Velocity and displacement are examples of ----- quantities
vector
the force of friction depends upon the type of surfaces in contact and the ------ force
normal
Because both ---- and magnitude must be taken into account when adding momenta, momentum is a vector quantity
direction
A moving object containing a bomb explodes. If the object had a total of twenty units of momentum just before the explosion , its pieces would have a total of ---- units of momentum just after the explosion.
twenty
Vectors can be added by placing the ---- of one vector at the head of another vector.
tail
Static friction is ------- than sliding friction
stronger/ harder to overcome
Any gain of momentum by an object occurs only by the ---- of a corresponding amount of momentum by another object
Loss
the ---- velocity of an object in motion is its velocity at any given instant of time.
instantaneous
a car travels 750 kilometers in 10 hours. The ------ speed of this car is 75 kilometers per hour.
average
An object is ----- when an unbalanced force acts on it.
accelerated
-------- is the measurement of the gravitational force acting on an object.
weight
------- Depends upon the amount of matter in an object and is independent of the location of the object.
mass
The sum of two vector quantities is determined by their -----
direction
An --- force cannot change the momentum of a system.
internal
The change of momentum for an object occurs only by the -------- given to the object
impulse
-------- is a force that opposes the motion of an object
friction
the unit of momentum in SI is ------
NS -newton seconds
Acceleration of an object varies directly with the applied forces and inversely with the ------ of the object.
mass
------ is the study of motion without regard to forces
kinematics
--------- is the science that examines the fundamental laws relating matter and energy.
Physics
The quantity of Ft is called ------
Impulse/momentum
------- is the study of the relationships that exist between forces and the motion of objects
dynamics
Complete the equation Ft = -----
Change in P or momentum
The average velocity of an object undergoing ----- acceleration can be calculated by adding the initial and final velocities and dividing by two
constant
if the momentum of a cannon is considered positive after it fires a shell, the momentum of the shell is considered ----
negative
Mass, ------ , and time are considered fundamental quantities.
length
The length of an arrow - tipped line segment drawn to represent a vector is proportional to the ----- of the vector
magnitude
speed represents the magnitude of ----
Velocity
A --- quantity has both magnitude and direction
vector
Momentum is the product of an objects ------- and --------
Mass and Velocity
A person takes a walk around a city. The vector drawn from the starting position to the final position represents a ----
displacement
Electromagnetic forces are ----- than gravitational forces
greater
An object that is slowing down is said to have a ---- acceleration.
negative
A net force is one --------- gives a mass of 1 kg an acceleration of 1 m/s^2
Newton
In a system consisting of objects upon which no external force is acting, the momentum of the system is -----
closed
the SI unit for acceleration is -----
m/s^2
Complete the following statement, "Every force is accompanied by an --------- ."
equal and opposite force
In SI, the fundamental unit of mass is the ---------
kilograms
------ can be computed by dividing an objects change in velocity by the time necessary to make that change.
acceleration
the acceleration due to gravity has a value in SI units of -----
9.8 m/s^2
Unless acted upon by an ------, an object at rest or in a state of uniform motion will remain at rest or in uniform motion.
unbalanced force
------ and Galileo contributed most to our understanding of motion
Newton
The final velocity of a uniformly acceleration object which started from rest is equal to its acceleration multiplied by the -----
time
Section 2
(29 cards)