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WorksheetsPhysics Chpt 3
Total questions: 12
Worksheet time: 9mins
Name
Class
Date
1.
Identify the following quantities as scalar or vector: the mass of an object, the number of leaves on a tree, wind velocity.
a)
vector, scalar, scalar
b)
scalar, vector, scalar
c)
Yscalar, scalar, vector
d)
vector, scalar, vector
2.
A student walks from the door of the house to the end of the driveway and realizes that he missed the bus. The student runs back to the house, traveling three times as fast. Which of the following is the correct expression for the return velocity if the initial velocity is Vstudent?
a)
3Vstudent
b)
-1/3Vstudent
c)
1/3Vstudent
d)
-3Vstudent
3.
In a coordinate system, the magnitude of the x component of a vector and 𝛳 , the angle between the vector and x-axis, are known. The magnitude of the vector equals the x component
a)
divided by the cosine of 𝛳
b)
divided by the sine of 𝛳
c)
multiplied by the cosine of 𝛳.
d)
multiplied by the sine of 𝛳.
4.
The magnitude of the ball’s velocity is least at location
a)
A
b)
B
c)
C
d)
D
5.
The horizontal component of the ball’s velocity at A is
a)
zero.
b)
equal to the vertical component of the ball’s velocity at C.
c)
equal in magnitude but opposite in direction to the horizontal component of the ball’s velocity at D.
d)
equal to the horizontal component of its initial velocity.
6.
Which diagram represents the vector addition, C = A + B?
a)
I
b)
II
c)
III
d)
IV
7.
How many displacement vectors shown in the figure above have horizontal components?
a)
2
b)
3
c)
4
d)
5
8.
Which of the following is an example of projectile motion?
a)
a jet lifting off a runway
b)
a baseball being thrown
c)
dropping an aluminum can into the recycling bin
d)
a space shuttle orbiting Earth
9.
What is the path of a projectile?
a)
a wavy line
b)
a parabola
c)
a hyperbola
d)
Projectiles do not follow a predictable path
10.
A passenger on a bus moving east sees a man standing on a curb. From the passenger’s perspective, the man appears to
a)
stand still
b)
move west at a speed that is less than the bus’s speed.
c)
move west at a speed that is equal to the bus’s speed
d)
move east at a speed that is equal to the bus’s speed.
11.
A piece of chalk is dropped by a teacher walking at a speed of 1.5 m/s. From the teacher’s perspective, the chalk appears to fall
a)
straight down
b)
straight down and backward.
c)
straight down and forward.
d)
straight backward
12.
What does 𝛳 equal?
a)
tan -1 (Δy/Δx)
tan -1 (Δy/Δx)
b)
tan -1 (Δx/d)
c)
tan -1 (Δx/Δy)
d)
tan -1 (Δy/d)
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