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WorksheetsVectors and Projectiles
Total questions: 20
Worksheet time: 45mins
Name
Class
Date
1.
Which statement describes a vector?
a)
It has magnitude but no direction
b)
It has direction but no magnitude
c)
It has both direction and magnitude
d)
It has constant magnitude but no
direction
direction
2.
A hiker walks 5 kilometers due north and then 7 kilometers due east. What is her total displacement?
a)
2 km
b)
8.6 km
c)
12 km
d)
12.6 km
3.
If a car moves 12 km North, 19 km East, and 12 km South, what is its displacement?
a)
12 km
b)
19 km, East
c)
31 km
d)
43 km, East
4.
To find the magnitude of a vector you use which formula
a)
inverse sine
b)
graphical analysis
c)
pythagorean theorem
d)
slope
5.
A car moved 60 km East and 90 km West. What is the displacement?
a)
30 km, West
b)
60 km. East
c)
90 km
d)
150 km
6.
A motorboat, which has a speed of 5 meters per second in still water, is headed east as it crosses a river flowing south at 3.3 meters per second. What is the magnitude of the boat’s resultant velocity with respect to the starting point?
a)
3.3 m/s
b)
5.0 m/s
c)
6.0 m/s
d)
8.3 m/s
7.
Sally is going for a jog. She walks 20 meters East, 10 meters North, and 30 meters West. What is Sally's displacement?
a)
14 meters
b)
10 meters
c)
200 meters
d)
60 meters
8.
In practice A of the figure, What is the magnitude of the resultant displacement?
a)
5 km
b)
8 km
c)
11 km
d)
15 km
9.
In practice B of the figure, which displacement is the horizontal component?
a)
30 km, East
b)
30 km, West
c)
40 km, North
d)
40 km, South
10.
The _______ of two or more vectors is the sum of the vectors.
a)
components
b)
scalar
c)
resultant
d)
magnitude
11.
What is the net force?
100 N 230 N
<------ --------->
100 N 230 N
<------ --------->
a)
30 N to the right
b)
230 N to the right
c)
130 N to the right
d)
This is a balanced force
12.
An object is launched horizontally from a cliff. The time it takes to hit the ground is
a)
more than if it was just dropped
b)
less than if it was just dropped
c)
the same amount of time than if it was just dropped
d)
impossible to determine
13.
What force acts in the y direction that causes an object to travel in a parabolic arc?
a)
Friction
b)
Gravity
c)
Tension
d)
No force acting.
14.
A ball is thrown horizontally at a height of 2.2 meters at a velocity of 65 m/s. Assume no air resistance. How far did the ball travel horizontally when it hit the ground?
a)
14 m
b)
30 m
c)
65 m
d)
43 m
15.
A bullet is fired horizontally at a height of 1.3 meters at a velocity of 950 m/s. Assume no air resistance. How long until the bullet reaches the ground?
a)
0.52 s
b)
0.27 s
c)
0.13 s
d)
0.36 s
16.
The horizontal component of a projectile's velocity is independent of...
a)
it's range
b)
time
c)
the vertical component
d)
none of these
17.
A stone is thrown horizontally with an initial speed of 10 m/s from a bridge. If air resistance could be ignored, how long would it take the stone to strike the water 80 m below the bridge?
a)
1 s
b)
2 s
c)
4 s
d)
8 s
18.
Horizontal velocity is constant.
a)
True
b)
False
19.
What is the vertical acceleration of a projectile?
a)
0 m/s2
b)
9.8 m/s2
20.
A ball is rolling across a table with a horizontal velocity of 2m/s. It rolls off a table that's 2m tall. How far does the ball land away from the table (Δx)?
a)
1.26 m Away
b)
4.13 m Away
c)
0.98 m Away
d)
3.45 m Away
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