Understanding Motion: Speed, Velocity, and Acceleration

What does the frame of reference relate to in motion?

• The highest speed achieved

• The final point of motion

• The relative point to which motion is compared

• The initial point of motion

What unit is used to measure speed?

• Meters per second

• Miles per hour

• Meters per second squared

• Kilometers per hour

What additional information does velocity provide over speed?

• Direction

• Weight

• Color

• Magnitude

Which quantity is a vector that includes both magnitude and direction?

• Time

• Velocity

• Distance

• Speed

Which of the following best defines acceleration?

• Change in speed over time

• Change in velocity over time

• Change in direction over time

• Change in distance over time

What is the unit of measurement for acceleration?

• Kilometers per hour squared

• Miles per hour

• Meters per second

• Meters per second squared

How does changing lanes at a constant speed affect a car's velocity?

• Velocity remains constant

• Speed increases

• Velocity changes

• Speed decreases

What happens to acceleration if a car turns a corner at a constant speed?

• It increases

• It changes

• It remains constant

• It decreases

If a car speeds up from 60 miles per hour to 80 miles per hour, what happens to its acceleration?

• It stops

• It remains the same

• It decreases

• It increases

What is the definition of speed?

• Distance/Time
• Change in velocity/Time
• A change in momentum

Tags

NGSS.MS-PS3-1