FIZIX1st Sem Review - 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 distance when speed and time are known?

Back

Distance = Speed × Time.

Front

What is the acceleration of an object in free fall near the Earth's surface?

Back

The acceleration is approximately -9.8 m/s².

Front

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

Back

Final Velocity = Initial Velocity + (Acceleration × Time).

Front

What is the significance of a negative acceleration?

Back

Negative acceleration indicates that an object is slowing down.

Front

What is the formula to find the maximum height reached by an object thrown upwards?

Back

Maximum Height = (Initial Velocity²) / (2 × g), where g is the acceleration due to gravity.

Front

If a car accelerates from rest to a speed of 40 m/s in 7 seconds, what is its average acceleration?

Back

Average Acceleration = (Final Velocity - Initial Velocity) / Time = (40 m/s - 0) / 7 s = 5.71 m/s².

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 does it mean if an object has a constant speed?

Back

It means the object covers equal distances in equal intervals of time, regardless of the direction.

Front

How do you calculate the distance traveled by an object under constant acceleration?

Back

Distance = Initial Velocity × Time + 0.5 × Acceleration × Time².