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Worksheets2. Acoustics , scalar and vector , velocity and acceleration
Total questions: 22
Worksheet time: 11mins
What distinguashes a vector from a scalar?
Vectors are always longer in value
Vectors have both magnitude and direction
Scalars are used only in physics
Scalars can't be measured
Which of the following is a scalar quantity?
Displacement
Length
Velocity
Acceleration
A person walks 5 meters east. This is an example of
Distance
Speed
Force
Displacement
Which physical quantity is a vector?
Mass
Distance
Velocity
Tempreture
What is the formula of velocity
a / t
x / t
x / d * t
x / t
Which of the following correctly describe instantaneous velocity
Distance divided by time
Velocity at a particular instant of time
The average speed in a round trip
Velocity measured after 1 hour
The SI unit of acceleration is
m/s2
m/s
cm2/s
N/m
A car's speedometer showes 60 km/h at one moment. This is an example of
Average velocity
Constant acceleration
Instantaneous velocity
Scalar magnitude
Which statement is TRUE?
Scalars always involve direction
Acceleration is a scalar
Displacement is a vector
Velocity is unrelared to displacement
What does acceleration describe?
Distance travel
Rate of change of velocity
Direction of movement
Time of travel
In vestibular testing, Which concept is most importane?
Scalar tempreture value
Sound amplitude
Vector-based motion analysis
Light perception
Which is not a correct unit of velocity?
cm/s
m/s
km/h
C*m/s2
During a balance test using a motion traking system, the software detects movement of the patient's head 30 cm/s toward the left. Which physical quantity is being measured here?
Scalar speed
Vector velocity
Acceleration
Distance
In a v-HIT test, the patient's eye movement velocity drops sharply within 0.1 seconds from 20 cm/s to 5 cm/s. What physical quantity does this change best describe?
Displacement
Instantaneous velocity
Force
Acceleration
A bone oscillator is placed on the mastoid to deliver a 1000 Hz tone. The vibration has both intensity and direction, directed inward toward cochlea. Whicg property of this vibration makes it a vector quantity?
Frequency
Directional displacement
Amplitude
Duration
A new trainee records a patient's walking distance during a vestibular test as "10 meters" and labels it as a vector. What correction should be made?
Change the unit
Clarify the distance is scalar not vector
Add acceleration
Use onle cm instead of meters
Two patients walk the same distance (5 meters) but one walk in a straight line to the target, and the other takes a curved path. Both walk are timed. Who has greater displacement, and what is type of quantity is it
The straight path, scalar
The straight path, vector
The curved path, vector
Both equal, scalar
The curved path, scalar
Which of the following statements is NOT true about scalar and vector quantitis?
Vectors require both magnitude and direction
Scalars can become vectors if speed increases
Displacement is a vector; distance is a scalar
Velocity is derived from displacement
If a patient's head moves in a circular motion, what happens to the displacement vector after one full rotation?
It increases with radius
It equals the length of the circle
It depends on speed
It becomes zero
Which graph would best represent a body with constant acceleration
A flat horizontal velocity-time graph
A straight sloped velocity-time graph
A curve in a displacement-time graph
A constant position over time
In vestibular function testing, Which physical quantity allows tracking sudden changes in head movement over time?
Distance
Displacement
Acceleration
Angular velocity
A body moves 4 m/s for 5 seconds, then stops for 5 seconds. What is the average velocity over the 10-seconds period
0 m/s
2 m/s
4 m/s
10 m/s
