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WorksheetsPhysics Chapter 3 Linear motion
Total questions: 26
Worksheet time: 14mins
Name
Class
Date
1.
How fast an object moves; the distance traveled per unit of time
a)
Motion
b)
Speed
c)
Velocity
d)
Acceleration
2.
The speed at any instant
a)
Average speed
b)
Velocity
c)
Free fall
d)
Instantaneous speed
3.
The total distance traveled divided by the time of travel
a)
Scalar quantity
b)
Free fall
c)
Acceleration
d)
Average speed
4.
An object´s speed and direction of motion
a)
Vector
b)
Scalar quantity
c)
Velocity
d)
Free fall
5.
A quantity that has both magnitude and direction
a)
Scalar quantity
b)
Vector quantity
c)
Free fall
d)
Accelaration
6.
A quantity that has only a magnitude, not a direction
a)
vector quantity
b)
result
c)
speed
d)
scalar quantity
7.
The rate at which velocity changes with time; the change in velocity may be in magnitude, or direction, or both.
a)
free fall
b)
acceleration
c)
motion
d)
speed
8.
Motion under the influence of gravity only
a)
Free fall
b)
Motion
c)
Speed
d)
Weight
9.
What to units of measurement are necessary for describing speed?
a)
distance/acceleration
b)
distance/time
c)
time/acceleration
d)
distance/acceleration
10.
What kind of speed is registered by an automobile speed-ometer:
a)
average speed
b)
instanteneous speed
11.
What is the average speed in km/h of a horse that gallops a distance of 15 km in a time of 30 min?
a)
30 km/h
b)
.5 km/h
c)
2 km/h
d)
5 km/h
12.
How far does a horse travel if it gallops at an average speed of 25 km/h for 30 min?
a)
12 km
b)
12.5 km
c)
.833 km
d)
8.33 km
13.
What is the acceleration of a car moving along a straight road that increases its speed from 0 to 100 km/h in 10 s?
a)
10 km/h x s
b)
10 km/s
c)
100 m/s
d)
10 km/h
14.
Difference between speed and velocity:
a)
Speed=how fast
Velocity= how fast and what direction
Velocity= how fast and what direction
b)
Speed=what direction
Velocity=how fast
Velocity=how fast
c)
Speed=how fast
Velocity= what direction
Velocity= what direction
d)
Motion
15.
If a car moves with a constant velocity, does it also move with a constant speed?
a)
Yes
b)
NO
16.
If a car is moving at 90 km/h and it rounds a corner, also at 90 km/ h, does it also mantain a constant speed?
a)
Yes
b)
No
17.
If a car is moving at 90 km/h and it rounds a corner, also at 90 km/ h, does it also mantain a constant velocity?
a)
No
b)
Yes
18.
What is the acceleration of a car that mantains a constant velocity of 100 km/h for 10 s?
a)
Zero
b)
100 km/h x s
c)
10 km/h
d)
10 km/h x s
19.
What did Galileo discover about the amount of speed a ball gained each second when rolling down an inclined plane?
a)
The ball gained the same amount of speed each second, so the acceleration is constant
b)
The ball gained different amount of speed each second, so the acceleration is inconstant
c)
The ball gained different amount of direction each second, so the velocity is inconstant
20.
When we discuss the motion of something, we describe the motion:
a)
Constant
b)
Relative to something else
c)
Proportional
d)
Inverse
21.
What exactly is meant by a "freely falling" object?
a)
When an object falls under the influence of gravity alone
b)
When the sum of forces acting in the object is zero
c)
When an object falls under the influence of many forces
22.
What is the gain in speed per seconds for a freely falling object?
a)
10 m/s
b)
9 m/s
c)
8 m/s
d)
3.14 x 10-5
23.
What is the speed acquired by a freely falling object 5 s after being dropped from a rest position?
a)
50 m/s
b)
10 m/s
c)
8 m/ S
24.
What is the speed acquired by a freely falling object 6 s after being dropped from a rest postion?
a)
10 m/s
b)
50 m/ s
c)
60 m/s
d)
9.81 m/s
25.
Consider these measurements: 10 m, 10 m/s, and 10 m/s2
a)
10 m:speed
10 m/s: distance
10 m/s2: acceleration
10 m/s: distance
10 m/s2: acceleration
b)
10 m:distance
10 m/s: speed
10 m/s2: acceleration
10 m/s: speed
10 m/s2: acceleration
c)
10 m:acceleration
10 m/s: speed
10 m/s2: distance
10 m/s: speed
10 m/s2: distance
26.
When an object is thrown upward, how much speed does it lose each second?
a)
10 m/s
b)
9 m/s
c)
-10 m/s
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