The video tutorial introduces the concepts of position, velocity, and acceleration, explaining how they describe motion. It covers constant velocity, represented by a flat line on a graph, and introduces acceleration as the change in velocity over time. The tutorial discusses non-constant acceleration and the use of tangent lines to understand real-world motion. It concludes with a focus on constant acceleration, which simplifies the analysis of motion in this class.

What is velocity defined as?

• The change in time with respect to position

• The change in position with respect to time

• The change in speed with respect to distance

• The change in acceleration with respect to time

What does the slope of a position versus time graph represent?

• Distance

• Velocity

• Time

• Acceleration

What is the slope of a flat line on a velocity versus time graph?

• Equal to the change in velocity

• Equal to the rise over the run

• Equal to the change in time

• Equal to zero

What happens to your velocity when you press the gas pedal in a car?

• It increases

• It decreases

• It becomes zero

• It remains constant

Tags

NGSS.HS-PS2-1

How is acceleration defined?

• The change in speed over the change in distance

• The change in position over the change in time

• The change in distance over the change in velocity

• The change in velocity over the change in time

Tags

NGSS.HS-PS2-1

What does a non-zero slope on a velocity versus time graph indicate?

• Constant velocity

• Constant position

• Changing velocity

• Zero acceleration

What does the slope of a tangent line on a velocity versus time graph represent?

• Instantaneous velocity

• Instantaneous acceleration

• Average velocity

• Average acceleration

In the real world, how does acceleration typically behave?

• It is always zero

• It is always constant

• It never changes

• It can vary over time

Tags

NGSS.HS-PS2-1

What kind of graph would you get if acceleration is not constant?

• A horizontal line

• A straight line

• A flat line

• A curve

What is the focus of the class regarding acceleration?

• Variable acceleration

• Zero acceleration

• Constant acceleration

• Changing acceleration

Tags

NGSS.HS-PS2-1