DRB
問題一覧
1
is where
an object is in space
and can be express
being a distance
from a reference
point in meters.
position
2
is the
change in position
per unit time.
velocity
3
is
the change in
velocity per unit
time.
acceleration
4
is a
scalar quantity.
distance
5
is a vector quantity.
displacement
6
Δx of a particle is defined as its change in position in some
time interval.
displacement
7
is also a vector quantity.
displacement
8
is the length of a path followed by a particle.
distance
9
is defined as the particle’s
displacement Δx divided by the time interval Δt during which that
displacement occurs:
average velocity
10
is defined
as the total distance d traveled divided by the total time interval
required to travel that distance:
average speed
11
is defined as the limit of the ratio
Δx/Δt as Δt approaches zero. By definition, this limit equals the
derivative of x with respect to t, or the time rate of change of the
position:
instantaneous velocity
12
is equal to the magnitude of its
instantaneous velocity.
instantaneous speed
13
is defined as the ratio of the change in its velocity
Δ𝑣𝑥 divided by the time interval Δ𝑡 during which that change occurs:
average acceleration
14
is equal to the limit of the ratio Δ𝑣𝑥 / Δ𝑡 as Δ𝑡
approaches 0. By definition, this limit equals the derivative of 𝑣𝑥 with respect to t, or
the time rate of change of the velocity:
instantaneous acceleration
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1
is where
an object is in space
and can be express
being a distance
from a reference
point in meters.
position
2
is the
change in position
per unit time.
velocity
3
is
the change in
velocity per unit
time.
acceleration
4
is a
scalar quantity.
distance
5
is a vector quantity.
displacement
6
Δx of a particle is defined as its change in position in some
time interval.
displacement
7
is also a vector quantity.
displacement
8
is the length of a path followed by a particle.
distance
9
is defined as the particle’s
displacement Δx divided by the time interval Δt during which that
displacement occurs:
average velocity
10
is defined
as the total distance d traveled divided by the total time interval
required to travel that distance:
average speed
11
is defined as the limit of the ratio
Δx/Δt as Δt approaches zero. By definition, this limit equals the
derivative of x with respect to t, or the time rate of change of the
position:
instantaneous velocity
12
is equal to the magnitude of its
instantaneous velocity.
instantaneous speed
13
is defined as the ratio of the change in its velocity
Δ𝑣𝑥 divided by the time interval Δ𝑡 during which that change occurs:
average acceleration
14
is equal to the limit of the ratio Δ𝑣𝑥 / Δ𝑡 as Δ𝑡
approaches 0. By definition, this limit equals the derivative of 𝑣𝑥 with respect to t, or
the time rate of change of the velocity:
instantaneous acceleration