30 Questions
Which formula represents acceleration?
$A = Vf - Vi / T$
What is the Triangular Method formula for cosine?
Cah (Cos = Adjacent/Hypotenuse)
What does a negative slope on a position-time graph indicate?
The object is slowing down or decelerating
What is the formula for finding the resultant vector using the Graphical Method?
Align the vectors head-to-tail and draw the resultant from the tail of the first to the head of the last
What does a flat line on a position-time graph indicate?
The object is at rest
What is the formula for finding the tangent of an angle using the Triangular Method?
Toa (Tangent = Opposite/Adjacent)
What is the measurement that has both size and direction?
Velocity
Which measurement describes how far an object travels and does not depend on direction?
Displacement
What is the difference between an object’s final position and its starting position called?
Displacement
Which quantity measures how much an object's speed changes over time?
Acceleration
Which measurement represents the rate at which an object is moving, regardless of direction?
Speed
What does velocity represent?
Speed with direction
Which type of wave refers to the particles of the medium moving back-and-forth parallel to the direction of propagation?
Longitudinal wave
What is the distance between two successive identical parts of a wave called?
Wavelength
What is the maximum distance of a particle with respect to its equilibrium position called?
Amplitude
What is the number of identical parts of a wave that pass through a given point per unit time called?
Frequency
What is the time for one complete cycle of a wave called?
Period
What property of sound waves determines the pitch that we hear?
Frequency
What is the purpose of units in measurements?
To describe and compare measured values meaningfully
Which of the following is NOT a physical quantity?
Direction
What is the difference between scalar and vector quantities?
Scalar quantities have magnitude only, while vector quantities have both magnitude and direction
Which of the following is a vector quantity?
Displacement
What is a frame of reference?
A set of coordinates used to determine positions and velocities of objects
Which system of units is predominantly used worldwide?
Metric units (SI Units)
What does a downward slope on a speed vs. time graph indicate?
The object is decelerating
In a transverse wave, how do the particles of the medium move?
At right angles to the wave propagation
Which type of wave does not require a medium for propagation?
Electromagnetic waves
What does a horizontal line on a speed vs. time graph indicate about the object's motion?
The object is moving at a constant speed
What type of wave requires a medium for propagation?
Sound waves
What represents acceleration on a speed vs. time graph?
The slope of the graph
Review concepts related to quantity, which refers to the amount or number of a material, and units, which are used as standards for measurement. Learn about expressing and comparing measured values in a meaningful way using metric and English units.
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