TARGETS: Linear Motion, Graphing, + Scalars/Vectors

The term 'SPEED' is described as:

• Vector quantity

• Scalar quantity

• The amount of mass an object has

• A term associated with direction

Tags

NGSS.MS-PS3-1

Which of the following are considered explanations of 'speed'?

• A distance divided by time (v=d/t)

• A rate of motion

• A scalar quantity that does NOT require direction

• All of the answers

Tags

NGSS.MS-PS3-1

The term 'VELOCITY' is described as:

• Vector quantity

• Scalar quantity

• The amount of energy an object has

• The time in which it takes for an object to move a distance

Which of the following are considered explanations of 'velocity'?

• A distance divided by time (v=d/t)

• A displacement divided by time

• A scalar quantity that does NOT require direction

• All of the answers

Calculate the SPEED of an object that travels 100 meters in 10 seconds using the equation: Speed = distance / time (v = d/t)

• 50 miles per hour (50 mph)

• 10 m/s

• 1000 m/s

• 0.01 m/s

Compare TWO DIFFERENT MOTIONS: Object A is traveling to the right. Object B is traveling to the left. Both are traveling at the SAME SPEED. How do their Velocities compare?

• They differ in direction (of their motions) only

• Object A has a positive velocity

• Object B has a negative velocity

• All answers are correct

Calculate the VELOCITY: An object travels from its starting position to 180 meters TO THE LEFT in 1 minute using the equation: Velocity = displacement / time

(v = d/t) *Observe Units of Measurement!!!

• -180 m/s

• -30 m/s

• 3 m/s

• -3 m/s

I can 'define' average speed as:

• The total time it took to move divided by the total distance the object traveled

• The total distance traveled divided by the total time it took to move

• The rate of change of speed

• The total displacement of the object from where it started to where it ended

I can 'define' average velocity as:

• The total time it took to move divided by the total distance the object traveled

• The total distance traveled divided by the total time it took to move

• The rate of change of speed

• The rate of change of position

A student drives to school and travels along Waukegan Road.

Part 1: The driver is stopped at a stoplight for 30 seconds before speeding up.

Part 2: The driver hits 'cruise control' at 35mph for 30 seconds.

Part 3: The driver slows down to 15 mph while turning into the parking lot.

Which 'part' of their drive did they travel at a CONSTANT SPEED?

• Part 1 only

• Part 2 Only

• Part 3 Only

• There is NO location traveling at a constant speed