The rate at which velocity changes is called:

• motion

• average speed

• instantaneous speed

• acceleration

Tags

NGSS.HS-PS2-1

Acceleration of an object happens when an object:

• increases its velocity

• decreases its velocity

• changes its direction

• All choices are correct.

Tags

NGSS.HS-PS2-1

What is happening between 2 and 3 seconds?

• The object is not moving.

• The object is not accelerating.

• The object is slowing down.

• The object is speeding up.

Tags

NGSS.HS-PS2-1

What is happening between 3 seconds and 4 seconds?

• The object is moving in a negative direction.
• The object is returning to its starting position.
• The object is slowing to a stop.
• The object is changing direction.

Tags

CCSS.HSF.IF.B.4

What happens at 4 seconds?

• The object changes direction.
• The object is at the starting point.

Tags

CCSS.HSF.IF.B.4

What is happening between 4 and 5 seconds?

• The object is slowing down in a negative direction.
• The object is slowing down in a positive direction.
• The object is slowing down in a negative direction.
• The object is speeding up in a negative direction.

Tags

CCSS.HSF.IF.B.4

The object represented by the red line is:

• at rest.

• experiencing constant velocity.

Which object(s) is/are slowing down?

• Both the orange and green objects.

• Both the blue and pink objects.

• Only the orange object.

• Only the green object.

Tags

NGSS.HS-PS2-1

Which object(s) is/are experiencing a change in direction?

• The green object only.

• Both the blue and red objects.

• Both the orange and pink objects.

• Both the green and pink objects.

Tags

NGSS.HS-PS2-1

Which object(s) is/are experiencing positive velocity with negative acceleration for at least a portion of the recorded time?

• The pink, blue and red objects.

• The green and orange objects.

• The orange objects.

• The pink object.

Tags

NGSS.HS-PS2-1