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 is acceleration calculated?

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 accelerates from 0 to 20 m/s in 3.5 seconds, what is its acceleration?

Back

The acceleration is 5.7 m/s².

Front

What is displacement?

Back

Displacement is the shortest distance from the initial to the final position of an object, taking direction into account.

Front

What is the displacement of a runner who completes 2 laps on a 400 meter track?

Back

The displacement is 0 meters, as the starting and ending points are the same.

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

How do you determine average speed?

Back

Average speed is calculated by dividing the total distance traveled by the total time taken.

Front

What happens to the acceleration of an object when it comes to a stop?

Back

When an object comes to a stop, its acceleration is negative, indicating a decrease in velocity.

Front

If a ball of clay is thrown at 28.0 m/s and stops in 0.020 s, what is its acceleration?

Back

The acceleration is -1400 m/s².