Acceleration

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It can occur when an object speeds up, slows down, or changes direction.

Front

Can an object have acceleration if it is slowing down?

Back

Yes, an object can have acceleration even if it is slowing down. This is called negative acceleration or deceleration.

Front

What is the formula for calculating acceleration?

Back

Acceleration (a) = (Final Velocity (v_f) - Initial Velocity (v_i)) / Time (t)

Front

If a car's speed increases from 10 m/s to 30 m/s in 5 seconds, what is its acceleration?

Back

Acceleration = (30 m/s - 10 m/s) / 5 s = 4 m/s².

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 indicates that an object is slowing down.

Front

If an object is moving in a circle at a constant speed, is it accelerating?

Back

Yes, because its direction is changing, it is experiencing centripetal acceleration.

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 happens to the acceleration of an object if the net force acting on it increases?

Back

If the net force increases, the acceleration of the object also increases, according to Newton's second law (F = ma).

Front

What is uniform acceleration?

Back

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