# When the velocity is constant is the acceleration 0?

By definition,

**acceleration**means change in**velocity**. So if the**velocity is constant**, this means both speed and direction are**constant**. And there has to be at least one of these things changing for the**velocity**to change, the**acceleration is**zero if none of these things change and the**velocity**is said to be**constant**.A.

### What is constant acceleration on a graph?

The curves on the previous

**graph**were all straight lines. A straight line is a curve with**constant**slope. Since slope is**acceleration**on a velocity-time**graph**, each of the objects represented on this**graph**is moving with a**constant acceleration**. Were the**graphs**curved, the**acceleration**would not have been**constant**.#### What happens if the acceleration is constant?

Sometimes an**accelerating**object will change its**velocity**by the same amount each second. This is referred to as a**constant acceleration**since the**velocity**is changing by a**constant**amount each second. An object with a**constant acceleration**should not be confused with an object with a**constant velocity**.#### What does an acceleration time graph show?

**Acceleration is the**rate of change of the velocity vector, , which expresses itself as the slope of the velocity vs.**time graph**. For a velocity vs.**time graph**, the**acceleration**at**time**t is equal to the slope of the line at t. Velocity vs.**time graphs**can also tell us about an object's displacement.#### What is the definition of uniform acceleration?

BSL Physics Glossary -**uniform acceleration**- definition. Translation: If an object's speed (velocity) is increasing at a constant rate then we say it has**uniform acceleration**. The rate of**acceleration**is constant. If a car speeds up then slows down then speeds up it doesn't have**uniform acceleration**.

B.

### What is the formula for constant acceleration?

The

**equations**can be utilized for any motion that can be described as being either a**constant**velocity motion (an**acceleration**of 0 m/s/s) or a**constant acceleration**motion. They can never be used over any time period during which the**acceleration**is changing. Each of the kinematic**equations**include four variables.#### What is kinematics and kinetics?

"**Kinetics**: The study of forces that cause motion (ex. torque, gravity, friction, etc.) and can be classified into two groups; Linear and angular motion.**Kinematics**: The study of describing movement (ex. displacement, time, velocity, etc.)"#### What does it mean when there is a constant acceleration?

The**Meaning**of**Constant Acceleration**. Sometimes an**accelerating**object will change its**velocity**by the same amount each second. As mentioned in the previous paragraph, the data table above show an object changing its**velocity**by 10 m/s in each consecutive second.#### How many kinematic equations are there?

There are**four kinematic equations**to choose from. Again, you will always search for an equation that contains the three known variables and the one unknown variable.

C.

### What is the motion of an object with constant acceleration?

**Motion with constant acceleration**.

**Motion with constant acceleration**occurs in everyday life whenever an object is dropped: the object moves downward with the

**constant acceleration**, under the influence of gravity. Likewise, is the body's instantaneous velocity at time .

#### What is the definition of constant velocity?

Furthermore, when an object travels the same distance every second, then the object is said to be moving with**constant velocity**. This means that the magnitude of the**velocity**(or speed) and the direction of the**velocity**both remain**constant**.#### What is the definition of constant speed?

BSL Physics Glossary -**constant speed**- definition. Definition: When the**speed**of an object remains the same - it does not increase or decrease - we say it is moving at a**constant speed**. Fingerspell.#### What is the motion of an object with constant acceleration?

**Motion with constant acceleration**.**Motion with constant acceleration**occurs in everyday life whenever an object is dropped: the object moves downward with the**constant acceleration**, under the influence of gravity. Likewise, is the body's instantaneous velocity at time .

Updated: 2nd October 2019