Motion - correct answer an object's change in position relative to a reference point
frame of reference - correct answer a system for specifying the precise location of
objects in space and time
displacement - correct answer the change in position of an object
speed - correct answer the distance traveled divided by the time interval during
which the motion occurred
velocity - correct answer the speed of an object in a particular direction
Speed/Velocity Equation and Unit - correct answer Equation: Distance/time
Unit: m/s
acceleration - correct answer the rate at which the velocity changes over time; an
object accelerates if its speed, direction, or both change
Acceleration Equation and Unit - correct answer Equation: Final Velocity - Initial
Velocity/ time
Unit: m/s^2
force - correct answer an action exerted on a body in order to change the body's
state of rest or motion; force has magnitude and direction
Four fundamental forces - correct answer 1. Gravity
2. The electromagnetic force
3. Strong nuclear force
4. Weak nuclear force
, friction - correct answer a force that opposes motion between two surfaces that are
in contact
static friction - correct answer the force that resists the initiation of sliding motion
between two surfaces that are in contact and at rest
kinetic friction - correct answer the force that opposes the movement of two
surfaces that are in contact and are moving over each other
Is Static or Kinetic friction greater for the same objects? - correct answer Static
friction is greater than kinetic friction
Inertia - correct answer the tendency of an object to resist a change in motion
unless an outside force acts on the object
Weight - correct answer a measure of the gravitational force exerted on an object
free fall - correct answer the motion of a body when only the force of gravity is
acting on the body
terminal velocity - correct answer the constant velocity of a falling object when the
force of air resistance is equal in magnitude and opposite in direction to the force of gravity
projectile motion - correct answer the curved path that an object follows when
thrown, launched or otherwise projected near the surface of Earth
momentum - correct answer a quantity defined as the product of the mass and
velocity of an object
Newton's first law - correct answer an object as rest remains at rest and an object in
motion maintains its velocity unless it experiences net force
frame of reference - correct answer a system for specifying the precise location of
objects in space and time
displacement - correct answer the change in position of an object
speed - correct answer the distance traveled divided by the time interval during
which the motion occurred
velocity - correct answer the speed of an object in a particular direction
Speed/Velocity Equation and Unit - correct answer Equation: Distance/time
Unit: m/s
acceleration - correct answer the rate at which the velocity changes over time; an
object accelerates if its speed, direction, or both change
Acceleration Equation and Unit - correct answer Equation: Final Velocity - Initial
Velocity/ time
Unit: m/s^2
force - correct answer an action exerted on a body in order to change the body's
state of rest or motion; force has magnitude and direction
Four fundamental forces - correct answer 1. Gravity
2. The electromagnetic force
3. Strong nuclear force
4. Weak nuclear force
, friction - correct answer a force that opposes motion between two surfaces that are
in contact
static friction - correct answer the force that resists the initiation of sliding motion
between two surfaces that are in contact and at rest
kinetic friction - correct answer the force that opposes the movement of two
surfaces that are in contact and are moving over each other
Is Static or Kinetic friction greater for the same objects? - correct answer Static
friction is greater than kinetic friction
Inertia - correct answer the tendency of an object to resist a change in motion
unless an outside force acts on the object
Weight - correct answer a measure of the gravitational force exerted on an object
free fall - correct answer the motion of a body when only the force of gravity is
acting on the body
terminal velocity - correct answer the constant velocity of a falling object when the
force of air resistance is equal in magnitude and opposite in direction to the force of gravity
projectile motion - correct answer the curved path that an object follows when
thrown, launched or otherwise projected near the surface of Earth
momentum - correct answer a quantity defined as the product of the mass and
velocity of an object
Newton's first law - correct answer an object as rest remains at rest and an object in
motion maintains its velocity unless it experiences net force
