Speed, Velocity, and 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 the speed of the object and the direction of its motion.

Front

Define acceleration in terms of velocity.

Back

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

Front

What does a flat line on a distance vs. time graph indicate?

Back

A flat line on a distance vs. time graph indicates that the object is at rest, meaning there is no motion.

Front

How can you determine if an object is accelerating from a velocity vs. time graph?

Back

An object is accelerating if the slope of the line on a velocity vs. time graph is not zero; a positive slope indicates increasing velocity, while a negative slope indicates decreasing velocity.

Front

What is uniform acceleration?

Back

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

Front

What is the formula for calculating acceleration?

Back

The formula for acceleration (a) is a = (final velocity - initial velocity) / time.

Tags

NGSS.HS-PS2-1

Front

What does it mean if an object has a negative acceleration?

Back

Negative acceleration, also known as deceleration, means that the object is slowing down.

Front

What is the significance of the area under a velocity vs. time graph?

Back

The area under a velocity vs. time graph represents the displacement of the object over the time interval.

Front

What is instantaneous velocity?

Back

Instantaneous velocity is the velocity of an object at a specific moment in time.

Front

How does acceleration relate to forces acting on an object?

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).

Tags

NGSS.MS-PS2-2