Unit 2 Notes Check - Motion, Acceleration, Forces

What is a scalar quantity?

• A quantity with only magnitude
• The distance and direction of an object’s final position from its initial position
• The length of the path an object traveled
• A quantity that has both magnitude and direction

Tags

NGSS.MS-PS3-1

What is the difference between distance and displacement?

• The distance and direction of an object’s final position from its initial position vs. the total amount traveled
• The distance and direction of an object’s final position from its initial position vs. the length of the path an object traveled
• The length of the path an object traveled vs. the total amount traveled
• The length of the path an object traveled vs. the distance and direction of an object’s final position from its initial position

What is a reference frame?

• The length of the path an object traveled
• The distance and direction of an object’s final position from its initial position
• A chosen point in the reference frame that is used to determine position
• A group of objects that are not moving relative to each other

How do you compute average speed?

• Distance x Time
• Distance/Time
• Displacement/Time
• Displacement x Time

How can you determine speed from a distance/time graph?

• By finding the y-intercept of the graph
• By finding the x-intercept of the graph
• By finding the area under the graph
• By finding the slope of the graph

How do you compute velocity?

• Distance/Time
• Displacement/Time
• Distance x Time
• Displacement x Time

Which of the following is an example of a vector quantity?

• Speed
• Velocity
• Temperature
• Mass

What is a reference point?

• A chosen point in the reference frame that is used to determine position
• The length of the path an object traveled
• The distance and direction of an object’s final position from its initial position
• A group of objects that are not moving relative to each other

How is acceleration defined?

• The change in velocity divided by time
• The change in speed divided by time
• The change in distance divided by time
• The change in displacement divided by time

Tags

NGSS.HS-PS2-1

What does the slope of a displacement/time graph represent?

• Velocity
• Distance
• Speed
• Acceleration