1.3 Acceleration

Front

What is acceleration?

Back

Acceleration is the rate at which an object changes its velocity. It can involve speeding up, slowing down, or changing direction.

Front

If an object is accelerating, what does that mean?

Back

It means the object is either speeding up, slowing down, or changing its direction.

Front

What is positive acceleration?

Back

Positive acceleration occurs when an object's speed increases over time.

Front

What is negative acceleration?

Back

Negative acceleration, also known as deceleration, occurs when an object's speed decreases over time.

Front

Can an object be accelerating if it is moving at a constant speed?

Back

Yes, if the object is changing direction while maintaining a constant speed, it is still accelerating.

Front

What is an example of positive acceleration?

Back

A car speeding up from 20 m/s to 40 m/s is an example of positive acceleration.

Front

What is an example of negative acceleration?

Back

A car slowing down from 60 m/s to 30 m/s is an example of negative acceleration.

Front

What does it mean to change direction?

Back

Changing direction means that the object is altering its path, which can also be considered a form of acceleration.

Front

What is the formula for calculating acceleration?

Back

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

Front

What is the unit of acceleration?

Back

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