Physics Acceleration

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object with respect to time.

Front

How is acceleration calculated?

Back

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

Front

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

Back

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

Front

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

Back

The acceleration is 5 m/s².

Front

Can an object accelerate while maintaining a constant speed?

Back

Yes, an object can accelerate if its direction changes, such as when turning a corner.

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 does a negative acceleration indicate?

Back

Negative acceleration indicates that an object is slowing down, also known as deceleration.

Front

What is the formula for calculating distance when acceleration is constant?

Back

The formula is: distance = initial velocity * time + 0.5 * acceleration * time².

Front

What is the effect of gravity on acceleration?

Back

On Earth, the acceleration due to gravity is approximately 9.81 m/s², which affects the motion of falling objects.

Front

How does mass affect acceleration according to Newton's second law?

Back

According to Newton's second law, acceleration is inversely proportional to mass; as mass increases, acceleration decreases for a given force.