Acceleration

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object over time.

Front

How can acceleration be zero?

Back

Acceleration can be zero if an object is moving at a constant speed in a straight line.

Front

What is the formula for acceleration?

Back

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

Front

What does a positive acceleration indicate?

Back

A positive acceleration indicates that an object is speeding up.

Front

What does a negative acceleration indicate?

Back

A negative acceleration (deceleration) indicates that an object is slowing down.

Front

What is the unit of acceleration?

Back

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

Front

If a car's speed changes from 30 m/s to 50 m/s in 5 seconds, what is the acceleration?

Back

Acceleration = (50 m/s - 30 m/s) / 5 s = 4 m/s².

Front

What happens to acceleration when an object moves in a circular path at constant speed?

Back

The object experiences acceleration due to the change in direction, even if the speed is constant.

Front

What is the relationship between acceleration and force?

Back

According to Newton's second law, acceleration is directly proportional to the net force acting on an object and inversely proportional to its mass (F = ma).

Front

What is uniform acceleration?

Back

Uniform acceleration occurs when an object's velocity changes at a constant rate.