Calculating Acceleration

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object with respect to time. It is a vector quantity, meaning it has both magnitude and direction.

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

If a car's velocity increases from 0 m/s to 20 m/s in 4 seconds, what is its acceleration?

Back

5 m/s².

Front

What does it mean if an object has a negative acceleration?

Back

Negative acceleration, also known as deceleration, means that the object is slowing down.

Front

What is uniform acceleration?

Back

Uniform acceleration occurs when an object's acceleration is constant over 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 formula for calculating final velocity?

Back

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

Front

If a car accelerates at 3 m/s² for 5 seconds from rest, what is its final velocity?

Back

15 m/s.

Front

What is the significance of the slope in a velocity-time graph?

Back

The slope of a velocity-time graph represents the acceleration of the object.