Acceleration Quick Check

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object with respect to time. It can be positive (speeding up) or negative (slowing down).

Front

How do you calculate acceleration?

Back

Acceleration (a) can be calculated using the formula: a = (final velocity - initial velocity) / time.

Front

What is the unit of acceleration?

Back

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

Front

What does a negative acceleration indicate?

Back

Negative acceleration indicates that an object is slowing down.

Front

If a car accelerates from 0 to 60 m/s in 5 seconds, what is its acceleration?

Back

Acceleration = (60 m/s - 0 m/s) / 5 s = 12 m/s².

Front

What is the significance of a zero acceleration?

Back

Zero acceleration means that an object is moving at a constant velocity.

Front

How does mass affect acceleration?

Back

According to Newton's second law, acceleration is inversely proportional to mass. More mass means less acceleration for the same force.

Front

What is the formula for calculating final velocity?

Back

Final velocity (v) can be calculated using the formula: v = initial velocity + (acceleration × time).

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 the acceleration of an object in free fall?

Back

The acceleration of an object in free fall near the Earth's surface is approximately 9.81 m/s² downward.