30 Questions
What is the significance of a line parallel to the time axis in a velocity-time graph?
The particle is at rest
What does a line with a negative slope in a velocity-time graph represent?
The particle is moving in the negative direction with constant velocity
What is the acceleration of a body under gravity?
Equal to g
What does a line with a constant slope in a velocity-time graph represent?
Uniform velocity
What is the significance of a line perpendicular to the time axis in a velocity-time graph?
The particle is moving with infinite velocity
What is the condition for the acceleration of a particle to be constant?
Both the magnitude and direction of acceleration remain constant
What is the graphical representation of the motion of a particle with uniform acceleration?
A parabola
What is the equation of motion for a particle moving with constant acceleration in scalar form?
s = ut + 0.5at^2
What is the acceleration of a body falling towards the earth in the absence of air resistance?
g
What is the condition for a particle to move with zero acceleration?
The particle is moving with constant speed
What is the relation between distance travelled and magnitude of displacement for a particle moving with zero acceleration?
The distance travelled is always equal to the magnitude of displacement
What is the relationship between the angle of acceleration and velocity in two-dimensional motion?
Other than 0° or 180° and may change with time
What is the equation of motion for an object undergoing uniform acceleration?
s = ut + (1/2)at^2
What is the path of a particle when the angle between acceleration and velocity is 90°?
Circle
What is the significance of the concept of a point object in kinematics?
It is used to simplify the study of motion
Which of the following statements is true for a particle moving with uniform acceleration?
The acceleration-time graph is a straight line
What is the relative velocity between two particles moving in the same direction?
The difference between their velocities
What is represented by a line with a constant slope in a velocity-time graph?
Uniform acceleration
Which of the following is true for a particle moving under gravity?
The acceleration is constant
What is the graphical representation of the motion of a particle with uniform acceleration?
A parabola in a velocity-time graph
What does a velocity-time graph with a constant slope represent?
Uniform velocity
A particle is moving under gravity. What is its acceleration?
Equal to 9.8 m/s²
What does a velocity-time graph with a changing slope represent?
Non-uniform acceleration
What is the significance of a line parallel to the position axis in a velocity-time graph?
Zero velocity
What does a velocity-time graph with a negative slope represent?
Retardation
What is the fundamental characteristic of one-dimensional motion?
The body changes its position in a straight line.
What is the state of a body when it does not change its position with respect to a frame of reference?
Rest
What is the characteristic of a particle or point mass?
It has zero dimension and significant mass.
What type of motion occurs when two coordinates of the position of a body change with time?
Two-dimensional motion
What is the requirement for a body to be treated as a particle?
The size of the body is negligible in comparison to its range of motion.
Test your understanding of motion in one dimension, including velocity, acceleration, and gravity. Practice problems and concepts related to motion under gravity and rest.
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