Module 3 Accelerated Motion

Acceleration is

• displacement.

• the rate of change of displacement.

• velocity.

• the rate of change of velocity.

Tags

NGSS.HS-PS2-1

When velocity is positive and acceleration is negative, what happens to the object’s motion?

• The object slows down.

• The object speeds up.

• Nothing happens to the object.

• The object remains at rest.

Tags

NGSS.HS-PS2-1

What does the graph above illustrate about acceleration?

• The acceleration is constant.

• The acceleration is zero.

• The acceleration decreases.

• There is not enough information to answer.

Tags

NGSS.HS-PS2-1

What does the graph above illustrate about acceleration?

• The acceleration varies.

• The acceleration is zero.

• The acceleration is decreasing.

• The acceleration increases then becomes constant.

Acceleration vectors show the magnitude and direction of the average acceleration during a time interval.

• True

• False

Tags

NGSS.HS-PS2-1

When the vectors for acceleration and velocity are in opposite directions, an object is speeding up.

• True

• False

A toy rocket is launched vertically upward. When the rocket reaches its highest point, its velocity is at its maximum.

• True

• False

Tags

NGSS.HS-PS2-1

The free-fall acceleration on Earth is 9.8 m/s² in any direction.

• True

• False

Tags

NGSS.HS-PS2-4

Which of the following results in the largest acceleration?

• a small change in velocity over a long time interval

• a large change in velocity over a short time interval

• a large change in velocity over a long time interval

• a small change in velocity over a short time interval

Tags

NGSS.HS-PS2-1

Average acceleration is the same as instantaneous acceleration when ____ .

• a velocity-time graph can be drawn

• acceleration is constant

• a distance-time graph can be drawn

• acceleration is changing