Acceleration

Front

What does positive acceleration indicate about an object's motion?

Back

The object is speeding up.

Front

Define acceleration.

Back

Acceleration is the rate of change in velocity.

Front

Calculate the acceleration of a dog that runs with an initial speed of 7.5 m/s and slides to a stop in 15 seconds.

Back

-0.5 m/s²

Front

What does the slope of a velocity-time graph represent?

Back

The slope represents acceleration.

Front

A box slides down an inclined plane and attains a velocity of 27 m/s in 3 seconds from rest. What is the acceleration?

Back

9 m/s²

Front

What is the formula for calculating acceleration?

Back

Acceleration (a) = (Final Velocity - Initial Velocity) / Time.

Front

If an object is at rest, what is its acceleration?

Back

0 m/s².

Front

What is the unit of acceleration in the International System of Units (SI)?

Back

Meters per second squared (m/s²).

Front

How does negative acceleration affect an object's motion?

Back

Negative acceleration means the object is 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).