CA-1 Retest

What is the average velocity of the object between 0 and 10 seconds?

• 6.0 m/s

• 1.5 m/s

• -4 m/s

• 0 m/s

Which graph(s) represents a constant velocity?

• a and c

• b and c

• c

• a and b

A boat travels 12.0 m while it reduces its velocity from 9.5 m/s to 5.5 m/s. What is the magnitude of the boat’s acceleration while it travels the 12.0 m?

• 1.3 m/s²
• 2.5 m/s²
• 3.0 m/s²
• 7.5 m/s²

A car driving at 50 miles per hour drives for 2 hours. What distance did it cover?

• 50 miles
• 25 miles
• 100 miles
• 75 miles

Velocity is

• speed and acceleration
• constant speed
• a frame of reference
• speed in a given direction

Acceleration is

• increasing speed
• decreasing speed
• changing direction
• all of the above

A value that only has magnitude (a number)

• Scalar
• Vector
• Speed
• Velocity

What is distance?

• straight line distance between start and end point
• total distance traveled

What is displacement?

• total distance traveled
• straight line distance between start and end point

What is the difference between a scalar and a vector?

• A scalar is just the value while a vector has direction.
• Scalar has direction and vectors are just numbers
• They are both the same
• yes