1st Semester Exam Speed, Acceleration, Kinematics

Front

What is speed?

Back

Speed is the distance traveled per unit of time. It is a scalar quantity.

Front

What is the formula to calculate speed?

Back

S = d/t, where S is speed, d is distance, and t is time.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity per unit of time. It can be positive (speeding up) or negative (slowing down).

Front

What is the unit of speed in the metric system?

Back

The unit of speed is meters per second (m/s).

Front

What is the unit of acceleration in the metric system?

Back

The unit of acceleration is meters per second squared (m/s²).

Front

What does a velocity-time graph show?

Back

A velocity-time graph shows how the velocity of an object changes over time.

Front

What does a flat line on a velocity-time graph indicate?

Back

A flat line indicates that the object is moving at a constant velocity.

Front

What does a positive slope on a velocity-time graph indicate?

Back

A positive slope indicates that the object is accelerating.

Front

What does a negative slope on a velocity-time graph indicate?

Back

A negative slope indicates that the object is decelerating (slowing down).

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction).