Acceleration Graphs and Speed Graphs

What does a horizontal line on a speed-time graph indicate?

• Constant speed

• Acceleration

• No motion

• Decreasing speed

Tags

NGSS.MS-PS3-1

Explain the concept of changing speed with respect to acceleration.

• Acceleration is the rate of change of velocity over time.

• Acceleration is the rate of change of distance over time.

• Acceleration has no effect on speed.

• Acceleration is the same as speed.

Tags

NGSS.HS-PS2-1

On a speed-time graph, what does a steeper slope indicate?

• Slower speed

• Constant speed

• No change in speed

• Greater acceleration or deceleration

Define terminal velocity.

• The speed at which an object stops falling

• The speed at which an object starts falling

• The constant speed that a freely falling object eventually reaches when the resistance of the medium through which it is falling prevents further acceleration.

• The maximum speed that an object can reach when falling through a vacuum

How does terminal velocity relate to acceleration?

• Terminal velocity is the point at which acceleration becomes zero.

• Terminal velocity increases acceleration

• Terminal velocity has no effect on acceleration

• Terminal velocity decreases acceleration

Tags

NGSS.HS-PS2-1

What type of motion is represented by a straight line on a speed-time graph?

• Random motion

• Constant speed

• No motion

• Acceleration

Tags

NGSS.MS-PS3-1

Explain the difference between speed and velocity on a graph.

• Velocity includes direction, while speed does not.

• Speed is measured in meters per second, while velocity is measured in kilometers per hour.

• Velocity is the rate of change of position, while speed is the rate of change of time.

• Velocity is a scalar quantity, while speed is a vector quantity.

How does the speed-time graph of an object in free fall look like?

• A horizontal line with no slope

• A parabola with a decreasing slope

• A zigzag line with varying slopes

• A straight line with a constant slope

What does this graph represent?

• Constant Speed
• Acceleration
• Not moving

A roller coasters accelerates from an initial speed of 6.0 m/s to a final speed of 70 m/s over 4 seconds. What's the acceleration?

• 24 m/s²

• 18 m/s²

• 16 m/s²

• 16 m/s

Tags

NGSS.HS-PS2-1