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Exam 1 Example Questions
 1 
These questions are similar to ones that might appear on the first exam.
They will be discussed in
the Tuesday recitation prior to the exam.
There will be between 20 and 25 questions on the exam.
1
.
The speed of an object moving in 1 dimension is decreasing.
This means that its acceleration
(a)
is positive.
(b)
is negative.
(c)
is in the same direction as the direction of the velocity.
(d)
is in the direction opposite to the direction of the velocity.
2
.
Vectors
A
r
,
B
r
, and
C
r
satisfy the equation
B
A
C
r
r
r
+
=
.
If
B
A
=
and
A
r
and
B
r
are
perpendicular to each other, then
(a)
0
=
C
(b)
A
C
2
=
(c)
A
C
2
=
(d)
A
C
2
=
3
.
A person drops a ball on the floor and the ball bounces up.
At the lowest point of the ball’s
motion its velocity is zero.
At this point in time its acceleration is
(a)
zero.
(b)
upwards.
(c)
downwards.
(d)
horizontal
4
.
A baseball is moving horizontally to the right at 70 m/s.
Consider both the gravitational force and
air resistance forces on the ball.
The magnitude of net force on the ball is
(a)
smaller than the magnitude of the gravitational force on the ball.
(b)
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This note was uploaded on 03/26/2012 for the course PHY 1020 taught by Professor Kodera during the Fall '11 term at University of Florida.
 Fall '11
 KODERA
 Physics

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