Calculating Acceleration

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 is acceleration calculated?

Back

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

Front

What does a negative acceleration indicate?

Back

Negative acceleration indicates that an object is slowing down.

Front

If a car's velocity changes from 20 m/s to 10 m/s in 5 seconds, what is its acceleration?

Back

-2 m/s².

Front

What is the unit of acceleration?

Back

The unit of acceleration is meters per second squared (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

If an object is at rest, what is its initial velocity?

Back

The initial velocity of an object at rest is 0 m/s.

Front

How do you determine the time taken to stop an object given its initial velocity and acceleration?

Back

Use the formula: time = (final velocity - initial velocity) / acceleration.

Front

What is the acceleration of an object that travels from 0 m/s to 60 m/s in 3 seconds?

Back

20 m/s².

Front

What is uniform acceleration?

Back

Uniform acceleration occurs when an object's acceleration is constant over time.