CONCEPTUAL WS -- 1-D KINEMATICS

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14 Νοε 2013 (πριν από 3 χρόνια και 8 μήνες)

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CONCEPTUAL WS
--

1
-
D KINEMATICS



1)

How is a vector quantity different from a scalar quantity?




2)

If the speedometer in a car reads a constant speed of 45 mi/hr, can you say that the car has a constant
velocity? Why or why not
?




3
)

In what situation does distance equal displacement?





4)

What quantity describes how quickly you change how fast you're traveling?





5
)

Is it possible to have
a
changing

speed but

a
constant

acceleration? Explain.





6
)

Is it possible to have

a c
onstant velocity and a
non
-
zero acceleration? Explain.





7
)

Object A increases its velocity from 10 m/s west to 20 m/s west. Object B increases its velocity from 30 m/s
east to 60 m/s east. Which object had the greater acceleration?





8
)

Why is
the direction of an object's acceleration important?





9
)

Describe the motion of a ball thrown straight up in the air.





10
)

Describe the acceleration of a ball thrown straight up in the air.





11
)

TRUE or FALSE: When a punted football reaches its g
reatest height, its acceleration is zero.