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8th Grade- Motion Vocabulary For Test
Test Description: Use this to study for Fridays test.
Instructions: Answer all questions to get your test result.
1) A 'frame of reference' can be defined as
A
a system of objects that are not moving with respect to one another
B
a how fast something is moving in a direction
C
a meeting point
D
how fast something is moving
2) Relative motion is
A
a system of objects that are not moving with respect to one another
B
movement in relation to a frame of reference
C
how fast something is moving in a direction
D
how fast something is moving
3) Distance can be defined as
A
how fast something is moving in a direction
B
a system of objects that are not moving with respect to one another
C
the length of the path between two points
D
movement in relation to a frame of reference
4) A vector is
A
a quantity that has a direction associated with it
B
a meeting point
C
the length of the path between two points
D
a system of objects that are not moving with respect to one another
5) Acceleration can be defined as
A
the rate at which velocity changes
B
distance /time
C
the length of the path between two points
D
a quantity that has a direction associated with it
6) Speed is
A
a quantity that has a direction associated with it
B
the ratio of the distance an object moves to the amount of time the object moves
C
the rate at which velocity changes
D
the length of the path between two points
7) Average speed is
A
the rate at which an object is moving at a given moment in time
B
the total distance traveled divided by the time it takes to travel that distance
C
the rate at which velocity changes
D
a quantity that has a direction associated with it
8) Instantaneous speed is
A
the rate at which an object is moving at a given moment in time
B
the total distance traveled divided by the time it takes to travel that distance
C
the rate at which velocity changes
D
a quantity that has a direction associated with it
9) Velocity can be defined as
A
the rate at which velocity changes
B
the ratio of the distance an object moves to the amount of time the object moves
C
the speed and direction an object is moving, measured relative to a reference point
D
the total distance traveled divided by the time it takes to travel that distance
10) Free fall can be defined as
A
the movement of an object toward Earth because of gravity (the acceleration due to gravity)
B
the rate at which velocity changes
C
the ratio of the distance an object moves to the amount of time the object moves
D
the total distance traveled divided by the time it takes to travel that distance
11) Constant acceleration is
A
a steady change in velocity
B
a quick change in velocity
C
there is no change in velocity
D
when the object stops moving
*select an answer for all questions
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