# Physics test (two-dimensional motion and vectors)

scalar
which of the following is a physical quantity that has a magnitude but no direction?
velocity
which of the following is an example of a vector quantity?
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vectors
Multiplying and dividing vectors by scalar results in
cos θ
In a coordinate system, a vector is orientated at angle θ with respect to the x-axis. The x component of the vector equals the vector’s magnitude multiplied by which trigonometric function?
5
How many displacement vectors shown in the figure above have horizontal components
D1 and D4
Which displacement vectors shown in the figure above have vertical components that are equal?
a baseball being thrown
which of the following is an example of projectile motion?
a parabola
what is the path of a projectile
a stone thrown into a lake
which of the following exhibits parabolic motion?
a flat piece of paper released from the window
which of the following does not exhibit parabolic motion?
B
at what point of the ball’s path shown in the figure above is the vertical component of the ball’s velocity zero?
move west at a speed that is equal to the bus’ speed
A passenger on a bus moving east sees a man standing on a curb. From the passenger’s perspective, the man appears to what?
straight down
A piece of chalk is dropped by a teacher walking at a speed of 1.5 m/s
displacement
Is distance or displacement a vector quantity?
The vectors must be perpendicular to each other
The equation D= square root x^2 + y^2 is valid only if triangle x and triangle y are magnitudes of vectors that have what orientation with respect to each other?

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