Kinematics

Front

What is Kinematics?

Back

Kinematics is the branch of physics that describes the motion of objects without considering the forces that cause the motion.

Front

What is the formula for calculating the maximum height of an object thrown vertically?

Back

The maximum height (h) can be calculated using the formula: h = (v^2) / (2g), where v is the initial velocity and g is the acceleration due to gravity (approximately 9.81 m/s²).

Front

What does a velocity-time graph represent?

Back

A velocity-time graph shows how the velocity of an object changes over time. The slope of the graph represents acceleration.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is constant acceleration?

Back

Constant acceleration means that the rate of change of velocity is the same over time. An object under constant acceleration moves in a predictable manner.

Front

What happens to the acceleration of an object in free fall?

Back

In the absence of air resistance, the acceleration of an object in free fall remains constant at approximately 9.81 m/s².

Front

What is the significance of the area under a velocity-time graph?

Back

The area under a velocity-time graph represents the displacement of the object over the time interval.

Front

How do you calculate the displacement of an object under constant acceleration?

Back

Displacement (s) can be calculated using the formula: s = ut + (1/2)at², where u is the initial velocity, a is the acceleration, and t is the time.

Front

What is the relationship between distance and displacement?

Back

Distance is the total path length traveled by an object, while displacement is the shortest straight-line distance from the initial to the final position, including direction.

Front

What is the effect of air resistance on falling objects?

Back

Air resistance opposes the motion of falling objects, reducing their acceleration and terminal velocity compared to free fall.