PS Final Exam Review

Which item is necessary to describe location?

• two dimensions

• a reference point

• a change in speed

• three dimensions

When an arrow represents velocity, the length of the arrow is _____________.

• time

• speed

• direction

• none of the above

If an object speeds up, slows down, or changes direction, it experiences a change in _____________.

• mass

• reference point

• velocity

• speed

Tags

NGSS.MS-PS3-1

A reference point allows you to determine the _________ of an object.

• position
• state

• speed

• dimension

Which two things must you know to find the velocity of an object?

• mass and speed

• direction and reference point

• reference point and mass

• speed and direction

The acceleration of an object measures its change in _________________.

• velocity

• location

• speed

• reference point

A description of an object’s location should include which three things?

• speed, direction, and time

• velocity, distance, and time

• reference point, speed, and distance

• reference point, distance, and direction

Which is a reference direction?

• faster

• the street

• to the north

• slower

Which statement indicates that motion has occurred?

• The reference point has changed.

• The position of the object has changed.

• The object being described has changed.

• All of the above.

What can you tell about the motion of an object represented by a curved line on a distance-time graph?

• The object is not moving.

• The object’s speed is not constant.

• The object is moving at a constant speed.

• All of the above.